Communication device, optical module, and communication system

Abstract

The embodiment of the invention provides a communication device, an optical module and a communication system, the communication device comprises a first communication device and a second communication device, the first communication device comprises a processor and a memory, the memory comprises an instruction, the processor reads and executes the instruction, and the processor sends the instruction to the optical module. First energy transmission light is sent to the second communication system through the optical fiber, the first energy transmission light is used for providing energy for the second communication system, the optical fiber can become the unique transmission medium between the energy supply communication system and the energy receiving communication system, and the purpose of transmission medium normalization is achieved. Moreover, the first communication device is enabled to execute the following operations: receiving a feedback signal or feedback signal light, the feedback signal light being sent by the second communication system through the optical fiber, the feedback signal being obtained by converting the feedback signal light, and the generation and sending of the feedback signal light being based on the first energy transfer light; and in response to the feedback signal, the subsequently emitted second energy transmission light is controlled, so that the safety of optical fiber energy transmission is improved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication device, an optical module, and a communication system. Background Art

[0002] In the existing network, a power supply device and a power receiving device are usually connected by a network cable or a hybrid optical and electrical cable. The power supply device provides electrical energy for the power receiving device through the network cable or the hybrid optical and electrical cable. The power receiving device uses the electrical energy provided by the power supply device to communicate with the power supply device or other devices.

[0003] The technology of the power supply device providing electrical energy to the power receiving device while communicating with the power receiving device through a network cable is also called PoE. PoE realizes the transmission of signals and electrical energy through Ethernet twisted pairs (copper wires). With the improvement of the communication rate, higher-specification network cables are required, resulting in increased costs. And the transmission distance of electrical energy in PoE is limited. In addition, higher-specification network cables are thicker and heavier, increasing the installation difficulty. The hybrid optical and electrical cable combines optical fibers and copper wires. The optical fibers in the hybrid optical and electrical cable are used to transmit signals, and the copper wires in the hybrid optical and electrical cable are used to transmit electrical energy. There are still problems in the hybrid optical and electrical cable technology, such as the inability to normalize the transmission medium and the relatively large weight of the cable. Summary of the Invention

[0004] In view of this, this application provides a communication device, an optical module, and a communication system to facilitate the normalization of the transmission medium.

[0005] In a first aspect, an embodiment of the present application provides a first communication device (such as a switch, a hub, a remote hub (RHUB), etc.), including a processor and a memory. The memory includes instructions, and the processor reads and executes the instructions, causing the first communication device to perform operations: sequentially send a first energy-carrying light and a second energy-carrying light to a second communication system through an optical fiber, where the first energy-carrying light and the second energy-carrying light are used to provide energy for the second communication system. For example, the first communication device may be electrically connected to a first optical module, and the processor may send a first control signal to the first optical module through the electrical connection to control the first optical module to sequentially generate the first energy-carrying light and the second energy-carrying light, and send the first energy-carrying light and the second energy-carrying light to the second communication system through the optical fiber; or, the first communication device includes an electro-optical converter (such as a laser, a laser diode (LD), a light-emitting diode (LED), etc.), and the processor controls the electro-optical converter to emit the first energy-carrying light and the second energy-carrying light to the first optical module, and then the first optical module sends the first energy-carrying light and the second energy-carrying light to the second communication system through the optical fiber. Or, the first communication device includes an optical port for connecting the optical fiber, and the first energy-carrying light and the second energy-carrying light emitted by the electro-optical converter can be sent to the second communication device by the optical port through the optical fiber. Optionally, the optical fiber passes through the first optical module, or the optical fiber does not pass through the first optical module. The first communication device provided by the embodiment of the present application can send the first energy-carrying light and the second energy-carrying light to the second communication device through the optical fiber, so that the second communication device obtains electrical energy through the first energy-carrying light and the second energy-carrying light, thereby enabling the optical fiber to become the only transmission medium between the first communication system (energy-supplying communication system) and the second communication system (energy-receiving communication system), achieving the purpose of transmission medium normalization.

[0006] Moreover, the processor reads and executes instructions, and also causes the first communication device to perform operations: after sending the first energy transfer light, receive a feedback signal or feedback signal light, and in response to the feedback signal, control the subsequent second energy transfer light sent to the second communication system (for example, increase the power of the second energy transfer light, stop sending the second energy transfer light, etc.), so that the second energy transfer light is more suitable for the second communication system, such as being more likely to meet the power demand of the second communication system, or supplying energy according to the demand of the second communication system. For example, when the second communication system is normal, supply energy normally; when the second communication system is abnormal, stop supplying energy, etc. Here, the difference between the first energy transfer light and the second energy transfer light is that the second energy transfer light is the energy transfer light generated after the first communication device or the first optical module sends the first energy transfer light to the second communication system. The power of the second energy transfer light may be equal to the power of the first energy transfer light, may be greater than the power of the first energy transfer light, or may be less than the power of the first energy transfer light. For example, after the first communication device or the first optical module sends the first energy transfer light to the second communication system, it may keep the power of the generated energy transfer light unchanged, that is, the power of the second energy transfer light is equal to the power of the first energy transfer light, or may increase the power of the energy transfer light, so that the power of the second energy transfer light is greater than the power of the first energy transfer light, or may decrease the power of the energy transfer light, so that the power of the second energy transfer light is less than the power of the first energy transfer light. Or, when the feedback signal is used to indicate an increase in the power of the energy transfer light, the first communication device or the first optical module responds to the feedback signal and increases the power of the second energy transfer light, making the power of the second energy transfer light greater than the power of the first energy transfer light. The feedback signal is obtained from the feedback signal light sent by the second communication system through the optical fiber, and the generation and transmission of the feedback signal light are based on the above-mentioned first energy transfer light. For example, the processor can receive the feedback signal sent by the first optical module (the feedback signal is converted from the feedback signal light received by the first optical module through the optical fiber), and in response to the feedback signal sent by the first optical module, send a second control signal to the first optical module to control the subsequent second energy transfer light emitted by the first optical module. Or, optionally, the first communication device further includes an optoelectronic converter (such as a photoelectric detector (Photoelectric Detector, PD) or a photodiode (Photo Diode, PD), etc.), and the optoelectronic converter receives the feedback signal light sent by the second communication system through the first optical module or through the above-mentioned optical port, and converts the feedback signal light into the feedback signal and sends the feedback signal to the processor. There may be two above-mentioned optical ports, and correspondingly, there are two above-mentioned optical fibers. The two optical ports are used to be connected to the two optical fibers in one-to-one correspondence. One optical port is used to send the first energy transfer light and the second energy transfer light through one optical fiber, and the other optical port is used to receive the feedback signal light through the other optical fiber. Or, optionally, the first communication device further includes an optical circulator / optical multiplexer / demultiplexer, so that the optical output of the electro-optical converter and the optical input of the optoelectronic converter are docked to the optical port or the first optical module through the optical circulator / optical multiplexer / demultiplexer.In this case, there is one optical port, and correspondingly, there is one optical fiber as described above. The optical port or the first optical module can transmit the first energy transmission light, the second energy transmission light, and the feedback signal light through the one optical fiber, reducing the number of optical fibers connecting the first communication device and the second communication system, thereby making installation easier and saving costs.

[0007] In a second aspect, an embodiment of the present application provides a first optical module, including a housing and a first optical port. The first optical port is located at the first end of the housing. The first optical port is used to connect to a second communication system through an optical fiber, and the first optical port is further used to sequentially send the above-mentioned first energy transmission light and second energy transmission light to the second communication system through the optical fiber. For example, optionally, the first optical module further includes an electrical interface and an electro-optical converter. The electrical interface and the second optical port are located at the second end of the housing, and the electro-optical converter is located in the housing. The electrical interface is used to be electrically connected to the first communication device. The input end of the electro-optical converter is connected to the electrical interface and is used to respond to the above-mentioned first control signal sent by the first communication device received through the electrical interface, and send the first energy transmission light and the second energy transmission light to the first optical port, so that the first optical port sequentially sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber. Or, optionally, the first optical module further includes a second optical port for docking with the first communication device. The second optical port is located at the second end of the housing. The second optical port is used to send the first energy transmission light and the second energy transmission light sequentially sent by the first communication device to the first optical port, so that the first optical port sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber. Or, the optical fiber is used to connect the first communication device and the second communication system. The first communication device sends the first energy transmission light and the second energy transmission light to the optical fiber. The optical fiber sequentially passes through the second optical port and the first optical port. The first optical port and the second optical port are used to provide a channel for the optical fiber. Or, the first optical module further includes a processor located in the housing. The processor is used to control the electro-optical converter to sequentially emit the first energy transmission light and the second energy transmission light to the first optical port based on the electrical energy obtained from the first communication device through the above-mentioned electrical interface, and then the first optical port sequentially sends the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber. The first optical module provided by the embodiment of the present application, in cooperation with the above-mentioned first communication device, sequentially sends the first energy transmission light and the second energy transmission light to the second communication device through the optical fiber, so that the second communication system obtains electrical energy through the first energy transmission light and the second energy transmission light, thereby enabling the optical fiber to become the only transmission medium between the first communication device and the second communication system, achieving the purpose of transmission medium normalization.

[0008] Moreover, the first optical port of the first optical module is further configured to receive the above-mentioned feedback signal light sent by the second communication system through the optical fiber; the feedback signal light is used to indicate and control the above-mentioned second energy transmission light; the generation and transmission of the feedback signal light are based on the above-mentioned first energy transmission light. For example, optionally, the first optical module further includes a photoelectric converter (see the description of the photoelectric converter in the first aspect), and the photoelectric converter is located in the housing. The photoelectric converter is configured to convert the received feedback signal light through the first optical port into the feedback signal, and send the feedback signal to the first communication device through the electrical interface. The first communication device responds to the feedback signal and issues the above-mentioned second control signal to control the second energy transmission light. Alternatively, optionally, the first optical module provides the feedback signal light received by the first optical port through the optical fiber to the first communication device through the above-mentioned second optical port. Alternatively, optionally, the photoelectric converter sends the converted feedback signal to the processor, and the processor responds to the feedback signal to control the second energy transmission light. Optionally, the first optical port includes a first sub-optical port and a second sub-optical port, and the first optical fiber may include a first optical fiber and a second optical fiber. The first sub-optical port is connected to the second communication system through the first optical fiber to send the first energy transmission light and the second energy transmission light to the second communication system, and the second sub-optical port is connected to the second communication system through the second optical fiber to receive the feedback signal light sent by the second communication system. Optionally, the second optical port may include a third sub-optical port and a fourth sub-optical port. The third sub-optical port is configured to send the first energy transmission light and the second energy transmission light received from the first communication device to the first sub-optical port, and the fourth sub-optical port is configured to provide the feedback signal light received by the first sub-optical port through the optical fiber to the first communication device. Optionally, the first optical module further includes an optical circulator / optical multiplexer / demultiplexer. When the second optical port only provides the feedback signal light to the first communication device, the second optical port and the optical output of the electro-optical converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer; or, the optical output of the electro-optical converter and the optical input of the photoelectric converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer; or, when the third sub-optical port sends the first energy transmission light and the second energy transmission light to the first optical port, and the fourth sub-optical port provides the feedback signal light received by the first optical port through the optical fiber to the first communication device, the third sub-optical port and the fourth sub-optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer. Optionally, the photoelectric converter is a PD, an optical receiver, or an optical transceiver.

[0009] In a third aspect, an embodiment of the present application provides a first communication system, including the first communication device according to any one of the above first aspects, and the first optical module according to any one of the above second aspects. The first optical module is plugged into the first communication device. The first communication system is configured to supply energy to the second communication system through an optical fiber and communicate with the second communication system.

[0010] Fourth aspect, corresponding to the above first aspect, an embodiment of the present application further provides a second communication device (such as a wireless access point (AP), a small base station, a pico remote radio unit (pRRU), a remote module in a campus network with an asteroid architecture, etc.), including a processor and a memory. The memory includes instructions, and the processor reads and executes the instructions, so that the second communication device performs operations: receiving the above-mentioned first energy transmission light and second energy transmission light sequentially sent by the first communication system through an optical fiber. For example, optionally, the second communication device is electrically connected to a second optical module, and the second communication device further includes an optoelectronic converter (such as a photovoltaic PD, a photovoltaic cell, etc.) and a monitor. The optoelectronic converter and the monitor are electrically connected to the processor. The optical inlet of the optoelectronic converter is docked with the second optical module, and is used to receive the first energy transmission light and the second energy transmission light sent by the first communication system through the second optical module, and convert the first energy transmission light and the second energy transmission light into first electric energy and second electric energy, and provide the first electric energy and the second electric energy to the processor. Alternatively, the second communication device obtains the first electric energy and the second electric energy from the second optical module through the above-mentioned electrical connection. The first electric energy is obtained by the second optical module converting the first energy transmission light, and the second electric energy is obtained by the second optical module converting the second energy transmission light. The second communication device provided by the embodiment of the present application obtains energy from the first energy transmission light and the second energy transmission light, or obtains energy from the first energy transmission light and the second energy transmission light through the second optical module, so that the optical fiber can become the only transmission medium between the energy-supplying communication device (the first communication system described in any item of the above first aspect) and the energy-receiving communication device (the second communication device described in any item of this aspect), achieving the purpose of transmission medium normalization.

[0011] The processor of the second communication device reads and executes instructions, and also causes the second communication device to perform operations: based on the first energy-transferring light, emit the feedback signal, and send the feedback signal light to the first communication system through the optical fiber. For example, the processor is further configured to obtain the monitoring result of the first energy-transferring light from the second optical module through the electrical connection. Alternatively, the second communication device further includes a monitor (such as a monitoring PD (MPD), etc.), which is connected to the processor, monitors the power of the first energy-transferring light, and sends the monitoring result to the processor. Based on the first electrical energy and the monitoring result, the processor sends the feedback signal to the second optical module through the electrical connection. The second optical module converts the feedback signal into the feedback signal light and sends it to the first communication system through the optical fiber. Alternatively, the second communication device further includes an electro-optical converter (such as a laser, LD, LED, signal modulator, etc.). The input end of the electro-optical converter is connected to the processor, the driving end of the electro-optical converter is connected to the monitor, and the optical output of the electro-optical converter is used to dock with the second optical module. The electro-optical converter is configured to convert the feedback signal into the feedback signal light under the drive of the current sent by the monitor (obtained during the monitoring of the first energy-transferring light) and emit it to the second optical module. The second optical module sends the feedback signal light to the first communication system through the optical fiber. Alternatively, the second communication device further includes an optical circulator / optical multiplexer / demultiplexer. The optical circulator / optical multiplexer / demultiplexer is configured to guide the first energy-transferring light and the second energy-transferring light from the second optical module to the optical input of the optoelectronic converter, and guide the feedback signal light from the optical output of the electro-optical converter to the second optical module. Alternatively, optionally, the second communication device further includes an optical port, which is used to connect the optical fiber, so that the second communication device is directly connected to the first communication system through the optical fiber, without transmitting the energy-transferring light and the feedback signal light through the second optical module. Optionally, the optical fiber passes through the second optical module. Alternatively, the optical port includes a first optical port and a second optical port, and the optical fiber includes a first optical fiber and a second optical fiber. The first optical port is docked with the optical input of the optoelectronic converter, and the first optical port is used to connect to the first communication system through the first optical fiber. The second optical port is docked with the optical output of the electro-optical converter, and the second optical port is used to connect to the first communication system through the second optical fiber. Optionally, the electro-optical converter is a laser diode, the input end of the electro-optical converter is connected to the processor, the driving end of the electro-optical converter is used to connect to the second optical module, and the optical output of the electro-optical converter is used to dock with the second optical module. Alternatively, the electro-optical converter is a signal modulator, the optical input and the optical output of the electro-optical converter are used to dock with the second optical module, the input end of the electro-optical converter is connected to the processor, and the driving end of the electro-optical converter is used to connect to the second optical module.Alternatively, when the electro-optical converter is a signal modulator, the second communication device further includes an optical splitter. The optical inlet of the photoelectric converter and the optical inlet of the electro-optical converter are docked with the optical outlet of the optical splitter, and the optical inlet of the optical splitter is used to dock with the second optical module. The optical splitter is used to split the first energy-carrying light and the second energy-carrying light to the optical inlet of the photoelectric converter and the optical inlet of the electro-optical converter.

[0012] In a fifth aspect, an embodiment of the present application provides a second optical module, including a housing and a first optical port. The first optical port is located at the first end of the housing, and the first optical port is used to connect to the first communication system through an optical fiber. The first optical port is used to connect to the first communication system through the optical fiber; the first optical port is further used to receive the first energy-carrying light and the second energy-carrying light sent by the first communication system through the optical fiber. For example, the second optical module further includes a second optical port, and the second optical port is located at the second end of the housing. The second optical port is used to dock with the second communication device and provide the first energy-carrying light and the second energy-carrying light received by the first optical port to the second communication device. Alternatively, the second optical module further includes a photoelectric converter (see the description of the photoelectric converter in the fourth aspect), and the photoelectric converter is located in the housing. The output end of the photoelectric converter is connected to the electrical interface, and the optical inlet of the photoelectric converter is docked with the first optical port. The photoelectric converter is used to convert the first energy-carrying light and the second energy-carrying light received by the first optical port into the first electrical energy and the second electrical energy, and provide the first electrical energy and the second electrical energy to the second communication device through the electrical interface. Alternatively, the optical fiber is used to connect the second communication device and the first communication system, and the second communication device receives the first energy-carrying light and the second energy-carrying light transmitted by the optical fiber through its own optical port. The optical fiber passes through the second optical port and the first optical port in sequence, and the first optical port and the second optical port provide channels for the optical fiber. The second optical module provided by the embodiment of the present application enables the second communication device described in any item of the fourth aspect to obtain energy through the first energy-carrying light and the second energy-carrying light, so that the optical fiber can become the only transmission medium between the energy-supplying communication device (the first communication system described in any item of the first aspect) and the energy-receiving communication device (the second communication device described in any item of the fourth aspect), achieving the purpose of transmission medium normalization.

[0013] Moreover, the first optical port of the second optical module is further configured to send the above-mentioned feedback signal light to the first communication system through the optical fiber. For example, optionally, the second optical port is configured to send the feedback signal light sent by the second communication device to the first optical port. Alternatively, the optical fiber is used to connect the second communication device and the first communication system, and the feedback signal light is transmitted through the optical fiber, and the optical fiber passes through the second optical port and the first optical port, and the second optical port and the first optical port are configured to provide a channel for the optical fiber. Or, optionally, the second optical module further includes a monitor (see the description of the monitor in the fourth aspect), and the monitor is located in the housing of the second optical module. The monitor is configured to monitor the power of the first energy transmission light, and send the monitoring result and the current obtained during the monitoring to the second communication device through the electrical interface of the second optical module. The second optical port is configured to send the feedback signal light sent by the second communication device based on the monitoring result and the current to the first optical port. Or, optionally, the second optical module further includes an electro-optical converter (see the description of the electro-optical converter in the fourth aspect), and the electro-optical converter is located in the housing of the second optical module. The input end and the driving end of the electro-optical converter are connected to the electrical interface, and the optical output of the electro-optical converter is docked with the first optical port. The electro-optical converter is configured to receive the feedback signal and the driving current sent by the second communication device through the electrical interface of the second optical module, and under the drive of the current, convert the feedback signal into the feedback signal light and emit it to the first optical port. Or, optionally, the driving end of the electro-optical converter is connected to the monitor, and the electro-optical converter converts the feedback signal into the feedback signal light under the drive of the current sent by the monitor. Or, optionally, the second optical module further includes a processor, and the processor is located in the housing. The processor is connected to the optoelectronic converter, the monitor and the electro-optical converter. The processor is configured to obtain the first electric energy and the second electric energy from the optoelectronic converter, obtain the monitoring result from the monitor, and based on the first electric energy and the monitoring result, send the feedback signal to the electro-optical converter. The electro-optical converter converts the feedback signal into the feedback signal light under the drive of the current sent by the monitor and emits it to the first optical port. Or, optionally, the second optical module further includes a splitter, and the splitter is located in the housing. The electro-optical converter is a signal modulator, the optical input of the splitter is docked with the first optical port, and the two optical outputs of the splitter are respectively docked with the optical input of the electro-optical converter and the optical input of the optoelectronic converter. The splitter is configured to split the first energy transmission light and the second energy transmission light to the optical input of the electro-optical converter and the optical input of the optoelectronic converter. Or, optionally, the second optical module further includes a fifth optical port, and the fifth optical port is located at the second end of the housing, and the fifth optical port is configured to dock with the second communication device. The optical input of the splitter is docked with the first optical port, and the two optical outputs of the splitter are respectively docked with the fifth optical port and the optical input of the optoelectronic converter, and the splitter is configured to split the energy transmission light to the fifth optical port and the optical input of the optoelectronic converter.The fifth optical port is used to provide a small part of the energy-carrying light (a small part of the first energy-carrying light and a small part of the second energy-carrying light) to the second communication device, so that the second communication device converts the feedback signal into the feedback signal light based on the small part of the first energy-carrying light. Another feasible way is that the first optical port includes a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, and the second optical port includes a third sub-optical port and a fourth sub-optical port. The first sub-optical port is used to connect to the first communication system through the first optical fiber and receive the first energy-carrying light and the second energy-carrying light through the first optical fiber. The second sub-optical port is used to connect to the first communication system through the second optical fiber and send the feedback signal light through the second optical fiber. The third sub-optical port is used to provide the first energy-carrying light and the second energy-carrying light received by the first sub-optical port to the second communication device, and the fourth optical port is used to provide the feedback signal light sent by the second communication device to the second sub-optical port. Another feasible way is that the second optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical circulator / optical multiplexer / demultiplexer is located in the above-mentioned housing. Optionally, the third sub-optical port and the fourth sub-optical port are docked to the first optical port through the optical circulator / optical multiplexer / demultiplexer, or the optical inlet of the optoelectronic converter and the optical outlet of the electro-optical converter are docked to the first optical port through the optical circulator / optical multiplexer / demultiplexer, so that the first optical port can transmit the first energy-carrying light, the second energy-carrying light, and the feedback signal light through the optical fiber. Another feasible way is that the electro-optical converter is an optical transmitter or an optical transceiver.

[0014] In a sixth aspect, an embodiment of the present application provides a second communication system, including the second communication device according to any one of the above fourth aspects and the second optical module according to any one of the above fifth aspects. The second optical module is plugged into the second communication device. The second communication system is used to receive energy from the first communication system through an optical fiber and communicate with the first communication system.

[0015] The above-mentioned communication device, optical module, and communication system can achieve transmission medium normalization by supplying and receiving energy through optical fibers, thereby reducing the weight of the cables between the communication system for energy supply and the communication system for energy reception, reducing the installation difficulty and cost of the cables, and facilitating bandwidth upgrade without replacing the cables, further effectively saving the upgrade cost. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1Schematic diagram of the structure of an embodiment of a first communication system provided by this application;

[0018] Figure 2a Schematic diagram of the structure of an embodiment of a first communication device provided by this application;

[0019] Figure 2b Schematic diagram of the structure of an embodiment of a first optical module provided by this application;

[0020] Figure 2b1 External schematic diagram of a first optical module provided by an embodiment of this application;

[0021] Figure 2b2 External schematic diagram of a first optical module provided by an embodiment of this application;

[0022] Figure 2b3 Another external schematic diagram of a first optical module provided by an embodiment of this application;

[0023] Figure 2c Schematic diagram of the structure of another embodiment of a first optical module provided by this application;

[0024] Figure 2d Schematic diagram of the structure of the third embodiment of a first optical module provided by this application;

[0025] Figure 2d1 Another external schematic diagram of a first optical module provided by an embodiment of this application;

[0026] Figure 2d2 Another external schematic diagram of a first optical module provided by an embodiment of this application;

[0027] Figure 2e 、 Figure 2f 、 Figure 2g and Figure 2h Schematic diagrams of the structures of another four embodiments of a first optical module provided by this application;

[0028] Figure 2h1 Another external schematic diagram of a first optical module provided by an embodiment of this application;

[0029] Figure 3a Schematic diagram of the structure of the second embodiment of a first communication device provided by this application;

[0030] Figure 3b Schematic diagram of the structure of the fourth embodiment of a first optical module provided by this application;

[0031] Figure 3c and Figure 3d Schematic diagrams of the structures of another two embodiments of a first optical module provided by this application;

[0032] Figure 4a Schematic diagram of the third embodiment of the first communication device provided by this application;

[0033] Figure 4b Schematic diagram of the fourth embodiment of the first communication device provided by this application;

[0034] Figure 4c Schematic diagram of the fifth embodiment of the first optical module provided by this application;

[0035] Figure 4d Schematic diagram of another embodiment of the first optical module provided by this application;

[0036] Figure 4e Schematic diagram of yet another embodiment of the first optical module provided by this application;

[0037] Figure 4e1 and Figure 4e2 External schematic diagram of another first optical module provided by the embodiments of this application;

[0038] Figure 5a Schematic diagram of another embodiment of the communication device provided by this application;

[0039] Figure 5b Schematic diagram of yet another embodiment of the communication device provided by this application;

[0040] Figure 5c Schematic diagram of another embodiment of the optical module provided by this application;

[0041] Figure 5d Schematic diagram of yet another embodiment of the communication device provided by this application;

[0042] Figures 6a1 to 6a3 Schematic diagrams of another three embodiments of the optical module provided by this application;

[0043] Figure 6a4 External schematic diagram of another optical module provided by the embodiments of this application;

[0044] Figure 6a5 、 Figure 6b 、 Figure 6c 、 Figure 6d and Figure 6e Schematic diagrams of another five embodiments of the optical module provided by this application;

[0045] Figure 6e1 External schematic diagram of yet another optical module provided by the embodiments of this application;

[0046] Figure 7a Schematic diagram of an embodiment of a second communication system provided by this application;

[0047] Figure 7b A schematic diagram of the structure of a first embodiment of a second communication device 500 provided in the present application;

[0048] Figure 7c A schematic structural diagram of a first embodiment of a second optical module 600 provided in the present application;

[0049] Figure 7d A schematic diagram of the structure of a second embodiment of the second optical module 600 provided in the present application;

[0050] Figure 7e A schematic structural diagram of a third embodiment of the second optical module 600 provided in the present application;

[0051] Figure 7f A schematic structural diagram of a fourth embodiment of the second optical module 600 provided in the present application;

[0052] Figure 7g , Figure 7h , Figure 7i and Figure 7j Schematic diagram of the structure of another four second optical module embodiments provided in this application;

[0053] Figure 8a A schematic diagram of the structure of a second embodiment of a second communication device 500 provided in the present application;

[0054] Figure 8b A schematic structural diagram of a fifth embodiment of the second optical module 600 provided in the present application;

[0055] Figure 8c A schematic structural diagram of a sixth embodiment of a second optical module 600 provided in the present application;

[0056] Figure 8d A schematic diagram of the structure of a third embodiment of a second communication device 500 provided in the present application;

[0057] Figure 8e A schematic structural diagram of a seventh embodiment of the second optical module 600 provided in the present application;

[0058] Figure 8f This is a schematic structural diagram of an eighth embodiment of the second optical module 600 provided in the present application;

[0059] Figure 9a A schematic diagram of the structure of a fourth embodiment of a second communication device 500 provided in the present application;

[0060] Figure 9b A schematic diagram of the structure of a fifth embodiment of a second communication device 500 provided in the present application;

[0061] Figure 9cSchematic diagram of the ninth embodiment of the second optical module 600 provided by this application;

[0062] Figure 9d Schematic diagram of the tenth embodiment of the second optical module 600 provided by this application;

[0063] Figure 9e Schematic diagram of the sixth embodiment of the second communication device 500 provided by this application;

[0064] Figure 9f Schematic diagram of the seventh embodiment of the second communication device 500 provided by this application;

[0065] Figure 9g Schematic diagram of the eleventh embodiment of the second optical module 600 provided by this application;

[0066] Figure 9h 、 Figure 9i 、 Figure 9j and Figure 9k Schematic diagrams of the eighth to eleventh embodiments of the second communication device 500 provided by this application respectively;

[0067] Figure 9k1 Schematic diagram of the structure of another embodiment of the second communication device provided by this application;

[0068] Figure 10a1 and Figure 10a2 Schematic diagrams of the structures of another two embodiments of the second optical module provided by this application;

[0069] Figure 10a3 、 Figure 10b 、 Figure 10c and Figure 10d Schematic diagrams of the twelfth to fifteenth embodiments of the second optical module 600 provided by this application respectively;

[0070] Figure 10e Schematic diagram of the structure of another embodiment of the second optical module provided by this application;

[0071] Figure 10f Schematic diagram of the structure of yet another embodiment of the second optical module provided by this application;

[0072] Figure 10g and Figure 10h Schematic diagrams of the structures of another two embodiments of the second optical module provided by this application;

[0073] Figure 11a 、 Figure 11b and Figure 11c Three schematic diagrams of transmitting the energy-carrying light and the signal light through a single optical fiber between two communication systems for energy supply and energy reception provided by the embodiments of this application;

[0074] Figure 11d , Figure 11e , Figure 11f and Figure 11g Four schematic diagrams of transmitting energy transmission light and signal light between a first communication system and a second communication system through different optical fibers provided in an embodiment of the present application;

[0075] Figure 12a , Figure 12b , Figure 12c and Figure 12d Schematic diagrams of four application scenarios provided for embodiments of the present application;

[0076] Figure 12e1 , Figure 12e2 and Figure 12e3 Schematic diagrams of three optical paths between a first communication system and a second communication system provided in an embodiment of the present application;

[0077] Figure 13 A schematic diagram of energy supply interaction between a first communication system and a second communication system provided in an embodiment of the present application.

[0078] Implementation

[0079] The technical solution of the present application is further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0080] A first communication system embodiment provided in the present application has the function of communicating through optical fiber, for example, having the optical communication function of a communication system used for power supply in a network networked through optical-electrical hybrid cables (such as 5G indoor small base stations networked through optical-electrical hybrid cables, campus networks with asteroid architectures, and distributed WiFi based on optical fiber wireless communication (ROF), etc.), and also has the function of supplying power through optical fiber.

[0081] like Figure 1 As shown, the first communication system 100 includes a first communication device 200 and a first optical module 300 plugged into the first communication device 200. The first communication device 200 may have the function of the communication device (such as access switch, Hub, RHUB, etc.) communicating through the optical module in the above-mentioned communication system for power supply, and may also be used to supply energy through optical fiber.

[0082] An embodiment of the first communication device 200 is as follows Figure 2aAs shown, the first communication device 210 includes a main board 211, a processor 212, a memory 213, a storage 214, a power module 215, a heat dissipation module 216, a network interface 217, and an energy supply LD 218. The processor 212, the memory 213, and the storage 214 are located on the main board 211 and, together with the main board 211, serve as the main control board to control the operation and data processing of the first communication device 210. During the communication between the first communication device 210 and the second communication system, the processor 212 may also have functions such as packet processing (such as parsing, processing, and forwarding packets, and sending packets to corresponding ports according to the source IP address and the destination IP address), line control (such as managing the opening and closing of the lines of the ports, bandwidth control, etc.), quality of service control (such as controlling the transmission priority of packets), network protocol processing (such as implementing network protocols such as TCP / IP, HTTP, etc.), system management (such as system configuration, system logs, system fault detection and diagnosis, etc.). The processor 212 may include one or more processors. For example, the processor 211 may include a central processing unit (CPU) and a network processor (NP), etc. The central processing unit may be used for system management and control, and the network processor may be used for packet storage, forwarding, and filtering, etc. The processor 212 may also include processors such as a security processor and a storage processor for processing specific tasks.

[0083] The memory 213 is used to store the operating programs and data of the first communication device 210, such as switch software, routing tables, etc. The memory 214 can be a hard disk, flash memory, etc., and is used to store the configuration files and log information of the first communication device 210. The power supply module 215 is used to convert the power supply into the voltages and currents required by various parts of the first communication device 210 to ensure the normal operation of the first communication device 210. The heat dissipation module 216 may include a fan, a heat sink, etc. The network interface 217 is used to provide a physical interface and is electrically connected to the first optical module, etc. The power supply LD 218 is used to convert the electrical power signal into the energy transmission light C (such as the above-mentioned first energy transmission light or the above-mentioned second energy transmission light) to supply energy to the second communication system through the optical fiber. After obtaining power through the power supply module 215, the main control board can control the operation of the heat dissipation module 216 to dissipate heat, prevent the communication device 210 from overheating, and control the first optical module through the network interface 217 to perform optical communication with the second communication system through the first optical module. The processor 212 can also provide current to the power supply LD 218 to generate the energy transmission light (such as the above-mentioned first energy transmission light or the above-mentioned second energy transmission light). The processor 212 can also correspondingly control the power supply LD 218 to generate high-power or low-power energy transmission light by increasing or decreasing the current. Therefore, in this application, the current provided by the processor 212 to the power supply LD can also be regarded as an electrical power signal or a control signal to control the on / off of the power supply LD and the power of the energy transmission light. The processor 212 is also used to control the above-mentioned second energy transmission light in response to the above-mentioned feedback signal d received by the network interface 217. The feedback signal d is obtained from the feedback signal light received by the above-mentioned first optical module through the optical fiber, and the feedback signal light comes from the second communication system.

[0084] In addition, the first communication device 200 may further include a circuit board, a network management module, etc. Here, only an example is given for illustration, rather than a limitation. The modules, devices, or circuit boards inside the first communication device 200 can be increased or decreased according to actual needs.

[0085] Correspondingly, an embodiment of the first optical module 300 is as follows Figure 2bAs shown in the figure, the first optical module 310 includes a housing 3010, a processor 311, an optical transmitter, an optical receiver, a third optical port 3121, a fourth optical port 3122, a first optical port 314, an optical channel 315, a second optical port 316, an electrical interface 317, and a signal PD 318. The housing 3010 can be a hollow box-shaped structure, which is used to protect the components inside the first optical module 300 and prevent dust and water. The third optical port 3121, the fourth optical port 3122, and the first optical port 314 are located at the first end 3011 of the housing 3010 and can be connected to the second communication system through an optical fiber 313. The third optical port 3121, the fourth optical port 3122, and the first optical port 314 can include a socket and an optical connector located inside the socket. The plug of the connected optical fiber 313 can be inserted into the socket, so that the optical connector receives the optical signal transmitted by the optical fiber (for example, the optical connector in the fourth optical port 3122 receives the communication optical signal B transmitted by the optical fiber, and the optical connector in the first optical port 314 receives the feedback optical signal), or sends an optical signal to the optical fiber 313 (for example, the optical connector in the third optical port 3121 sends the communication optical signal A to the optical fiber 313, and the optical connector in the first optical port 314 sends the first energy transmission optical signal and the second energy transmission optical signal to the optical fiber 313). The processor 311, the optical transmitter, the optical receiver, and the signal PD 318 are located in the housing 3010. The optical transmitter can be used to convert the communication signal (electrical signal, referred to as communication signal a for ease of description) to be transmitted by the first communication device plugged into the first optical module 310 into a communication optical signal (referred to as communication optical signal A for ease of description) and send it to the energy receiving communication system (the second communication system) through the third optical port 3121 and the connected optical fiber. The optical transmitter can include an electro-optical converter such as a laser, a laser diode, or a light-emitting diode, and can also include a driving circuit to drive the electro-optical converter to emit light that meets the requirements. The optical receiver is used to receive the communication optical signal (referred to as communication optical signal B for ease of description) sent by the second communication system through the fourth optical port 3122 and convert the optical signal B into a communication signal (electrical signal, referred to as communication signal b for ease of description). The optical receiver can include optical elements (such as an optical connector) and a photodetector (PD), etc. Among them, the optical connector can be a lens, etc., and the photodetector can be a positive-negative diode (PIN), an avalanche photodiode, etc.

[0086] The second optical port 316 and the electrical interface 317 are located at the second end 3012 of the housing 3010. As Figure 2b2As shown, the electrical interface 317 is a gold finger. The electrical interface 317 is used for electrically connecting to the first communication device 210 and is plugged into the network interface 217 of the first communication device 210. The second optical port 316 is located at the second end 3012 of the housing 3010. Optionally, the second optical port 316 is a via hole for enabling the energy transmission light (C) emitted by the first communication device 210 to enter the optical channel 315. Optionally, the second optical port 316 further includes a lens built into the via hole to reduce the loss of light during transmission. The optical channel 315 can be similar to a hollow straight tube, and the energy transmission light (C) can reach the first optical port 314 through the optical channel 315. Or, optionally, the second optical port 316 and the first optical port 314 include inner sockets located inside the housing 3010. The first optical module further includes an optical fiber (referred to as an inner optical fiber for ease of description), and both ends of the optical fiber are respectively plugged into the inner sockets of the second optical port 316 and the first optical port 314. In this way, the energy transmission light emitted by the first communication device enters the inner optical fiber through the second optical port 316, is transmitted to the first optical port 314 through the inner optical fiber, then enters the optical fiber 313 through the first optical port, and is transmitted to the second communication system by the optical fiber 313. The first optical port 314 may not include an optical connector, that is, the inner optical fiber and the optical fiber 313 are seamlessly connected inside the first optical port 314. The following relates to the optical port structure at the second end of the housing of the optical module, which is similar to the second optical port 316, and the first optical port structure at the first end of the housing of the optical module is similar to the first optical port 314. Thereafter, the first energy transmission light and the second energy transmission light are transmitted to the second communication system through the optical fiber 313 by the first optical port 314 to supply energy to it. The electrical interface 317 and the second optical port 316.

[0087] The processor 311 can be used to control the optical transmitter and the optical receiver, such as controlling parameters such as the laser switch, current, and voltage in the optical transmitter, and monitoring parameters such as the received optical power and temperature of the optical receiver. Moreover, the processor 311 can also have data processing functions, such as encoding, decoding, error detection, and correction of the data sent and received by the first optical module. In addition, the processor 311 can also be used to control the first optical module, such as controlling the communication process of the first optical module, such as establishing connections, data transmission, port connections, etc., and managing the power supply of the first optical module, such as switching the power supply, modulating the voltage or current, etc. The first optical module 310 will interact with the first communication device 210 through the electrical interface 317 to exchange communication signals a and communication signals b.

[0088] The above-mentioned second communication system returns a feedback signal light D / C(d) / B(d) to the above-mentioned first communication device based on the received first energy transmission light, so as to instruct the first communication system to control the second energy transmission light. Among them, D, C(d), and B(d) are feedback signal lights of different wavelengths, d represents the feedback signal carried by the feedback signal light D / C(d) / B(d), C(d) represents multiplexing the first energy transmission light and carrying the feedback signal d on the first energy transmission light, and B(d) represents multiplexing the communication signal light B and carrying the feedback signal d on the communication signal light B. D represents using a light wave D different from C and B to carry the signal d. The first optical port 314 can also be used to receive the feedback signal light D / C(d) / B(d) from the second communication system through an optical fiber. The signal PD 318 is used to convert the feedback signal light D into a feedback signal d (electrical signal) and send it to the connected first communication device 210 through the electrical interface 317. Here, the wavelength of the feedback signal light D can be different from the wavelength of the first energy transmission light C.

[0089] The first optical module 300 is not limited to Figure 2b the content of the illustrated embodiment. Components, circuits, functional modules, interfaces, etc. in the first optical module 300 can be increased or decreased according to actual needs. For example, in the first optical module 300, an optical transceiver (BOSA) is used to replace the above-mentioned optical receiver and optical transmitter. At this time, one optical port can be omitted at the first end of the housing of the first optical module, such as Figure 2b3 shown. It includes a first optical port 314 and a third optical port 3121. The first optical port 314 is used to transmit energy transmission light (such as the first energy transmission light or the second energy transmission light) and feedback signal light, and the third optical port 3121 is used to transmit communication signal light.

[0090] In this case, only one optical fiber 313 may be required for communication between the first communication system 100 and the second communication system. Or, the first optical module 300 uses an optical transceiver to convert the feedback signal light D into a feedback signal d. In this case, the signal PD 318 can be omitted, and the first optical port 314 is only used to transmit energy transmission light through an optical fiber, and the third optical port 3121 can transmit communication signal light and feedback signal light through an optical fiber.

[0091] Another embodiment of the first optical module 300 is as Figure 2cAs shown, the difference between the first optical module 320 and the first optical module 310 is that it further includes an optical circulator 319 located in the housing 3010. One end of the optical channel 315 close to the first optical port 314 and the signal PD 318 are docked with the first optical port through the optical circulator 319. The optical circulator 319 may include at least three ports: port 1, port 2, and port 3. One end of the optical channel 315 close to the first optical port 314 is docked with port 1. After the energy transmission light C enters port 1, it is guided to port 2. Port 2 is docked with the first optical port 314. The energy transmission light C emitted from port 2 enters the first optical port 314 and can then be transmitted to the second communication system through the optical fiber connected to the first optical port 314. After the feedback signal light D / C(d) / B(d) enters port 2 through the first optical port 314, it is guided to port 3 for output. The signal PD 318 is docked with port 3. The feedback signal light D / C(d) / B(d) enters the signal PD 318 from port 3 and is converted into the feedback signal d.

[0092] In some other embodiments of the first optical module 300, the optical circulator can also be replaced by an optical splitter.

[0093] In the third embodiment of the first optical module 300, as Figure 2d shown, the difference between the first optical module 330 and the first optical module 310 is that the first optical port 314 includes a first sub-optical port 3141 and a second sub-optical port 3142. The first sub-optical port 3141 is docked with one end of the optical channel 315 close to the first optical port, and the second sub-optical port 3142 is docked with the optical inlet of the signal PD 318. The first sub-optical port 3141 and the second sub-optical port 3142 can each be connected to the second communication system through an optical fiber. The energy transmission light C reaches the second communication system through the first sub-optical port 3141 and the optical fiber connected thereto, and the feedback signal light D / C(d) / B(d) reaches the signal PD 318 through the second sub-optical port 3142. The first sub-optical port 3141 and the second sub-optical port 3142 are similar in structure or shape to the first optical port, and the difference lies in the content transmitted. The four optical ports at the first end of the housing of the first optical module 330 are as Figure 2d1 or Figure 2d2 shown.

[0094] Another feasible way is that, as Figure 2e shown, the function of the second sub-optical port 3142 is realized by the fourth optical port 3122, or, as Figure 2f shown, by a third optical port 3121 that can transceiver communication light (corresponding to BOSA). In these cases, the second sub-optical port 3142 can be omitted. And the function of the signal PD 318 can also be realized by an optical receiver (as Figure 2e and Figure 2g shown) or BOSA (as Figure 2f and Figure 2his implemented as shown. In this case, the signal PD 318 can also be omitted. Another feasible way is to omit the first optical port 314, and the energy transmission light is sent by the Figure 2f third optical port 3121 in. In this case, the first optical module 332 can further add an optical circulator to guide the energy transmission light entering from the second optical port 316 to the third optical port 3121, so that the energy transmission light, the feedback signal light D / C(d) / B(d), and the communication signal lights A and B are transmitted through a single optical fiber 313. Or, as Figure 2g shown, compared with the first optical module 331, the first optical module 333 adds an optical circulator 3191 and omits the third optical port 3121 and the fourth optical port 3122. As Figure 2h shown, compared with the first optical module 332, the first optical module 334 adds an optical circulator 319 and omits the third optical port 3121. Among them, compared with the optical circulator 319, the optical circulator 3191 has an additional port 4 for guiding the communication signal light A sent by the optical transmitter to the first optical port 314, so that the energy transmission light, the feedback signal light D / C(d) / B(d), the communication signal lights A and B are transmitted through a single optical fiber 313, thereby further achieving the purpose of simplifying installation and reducing costs. Another feasible way is that the first optical module 333 retains the fourth optical port 3122 and replaces the optical circulator 3191 with an optical multiplexer. The optical output of the optical transmitter and the second optical port can be docked with the first optical port 314 through the optical multiplexer. One optical port at the first end of the housing of the first optical module 333 and the first optical module 334 is as Figure 2h1 shown.

[0095] In the above embodiments, the first communication device emits the energy transmission light C, and the first optical module converts the feedback signal light D / C(d) / B(d) into the feedback signal d.

[0096] In some other embodiments of the first communication system, the first communication device does not emit the energy transmission light. The first optical module emits the energy transmission light C, and the first communication device converts the feedback signal light D into the feedback signal d.

[0097] The second embodiment of the first communication device 200 is as Figure 3a shown. The difference between the first communication device 220 and the first communication device 210 is that the first communication device 220 includes a signal PD 318 for converting the feedback signal light D / C(d) / B(d) into the feedback signal d, and the feedback signal light D / C(d) / B(d) is provided to the signal PD 318 by the plugged first optical module.

[0098] Correspondingly, the fourth embodiment of the first optical module 300 is as Figure 3bAs shown, the difference between the first optical module 340 in this embodiment and the foregoing first optical module embodiment is that: the first optical module 340 includes an energy-supplying LD 218, and the energy-supplying LD 218 is located in the housing 3010. The energy-supplying LD 218 is configured to receive a first control signal sent by the first communication device through the electrical interface 317, and generate a first energy-transmitting light and a second energy-transmitting light in response to the first control signal. The energy-supplying LD 218 is further configured to receive a second control signal sent by the first communication device through the electrical interface 317, and control the second energy-transmitting light in response to the second control signal. The first energy-transmitting light and the second energy-transmitting light are sent to the second communication system through the optical fiber 313 by the first optical port 314. The feedback signal light D / C(d) / B(d) received by the first optical port 314 through the optical fiber 313 reaches the second optical port 316 through the optical channel 315, so as to be provided to the signal PD 318 in the connected first communication device 220. As a variation of this embodiment, the first optical module may also be as Figure 3c shown, and further includes an optical circulator 319 to combine the energy-transmitting light C and the feedback signal light D / C(d) / B(d) into one path and transmit them through one optical fiber 313, or may also be as Figure 3d shown, with two optical ports provided, divided into two paths, and transmitted through two optical fibers 313. Or, the third optical port 3121 / 3122 of the multiplexed optical transmitter / optical receiver / optical transceiver is used to transmit the energy-transmitting light and / or receive the feedback signal light D / C(d) / B(d), so as to share the optical fiber as much as possible and reduce the number of optical fibers, etc.

[0099] In the third embodiment of the first communication system, both the energy-supplying LD and the signal PD are provided in the first communication device.

[0100] The third embodiment of the first communication device 200 is as Figure 4a shown. The difference between the first communication device 230 and the foregoing first communication device embodiment is that it includes both an energy-supplying LD 218 and a signal PD 318.

[0101] The fourth embodiment of the first communication device 200 is as Figure 4b shown. The difference between the first communication device 240 and the first communication device 230 is that it further includes a circulator 319, which can combine the energy-transmitting light C and the feedback signal light D / C(d) / B(d) into one path for transmission.

[0102] Corresponding to the first communication device 240, the fifth embodiment of the first optical module 300 is as Figure 4c shown. The difference between the first optical module 350 and the first optical module 310 is that the signal PD 318 is omitted. The second optical port 316 is docked with port 2 of the optical circulator 319.

[0103] Corresponding to the first communication device 230, the other two embodiments of the first optical module 300 are respectively asFigure 4d and Figure 4e as shown. The first optical module 360 includes two optical channels 315 (which can be regarded as a first channel and a second channel), respectively transmitting the energy-carrying light C and the feedback signal light D / C(d) / B(d). Correspondingly, the third sub-optical port 3161 and the fourth sub-optical port 3162 on the second end 3012 are respectively docked with the optical outlet of the energy-supplying LD and the optical inlet of the signal PD in the first communication device 230. The difference between the first optical module 370 and the first optical module 360 is that: it includes a circulator 319, still combining the energy-carrying light C and the feedback signal light D / C(d) / B(d) into one path and transmitting through a single optical fiber 313. The third sub-optical port 3161 and the fourth sub-optical port 3162 are similar in structure or shape to the second optical port, the difference being the light passing through them. The electrical interface 317, the third sub-optical port 3161, and the fourth sub-optical port 3162 on the second end 3012 of the housings of the first optical module 360 and the first optical module 370 can be as Figure 4e1 and Figure 4e2 shown.

[0104] Another feasible way is that the above-mentioned first communication device may further include an optical port for connecting an optical fiber (such as the optical port 261 as Figure 5b shown) or two optical ports (such as the optical ports 251 and 252 as Figure 5a shown) for transmitting the energy-carrying light and the feedback signal light. Correspondingly, as Figure 5c shown, the optical channel in the first optical module 380 only allows the optical fiber connected to the first communication device 250 / 260 to pass through, or the first optical module may not participate in optical energy supply and is only used for optical communication.

[0105] Another embodiment of the first communication device 200 is as Figure 5d shown. The difference between the first communication device 261 and the first communication device in the above embodiment is that: the network interface 217 is not only used to send a first control signal to the connected first optical module to control the first optical module to send the above-mentioned first energy-carrying light and second energy-carrying light to the second communication system through the optical fiber; and, the network interface 217 is also used to receive the feedback signal sent by the first optical module and send a second control signal issued by the processor in response to the feedback signal to the first optical module, so that the first optical module controls the second energy-carrying light.

[0106] In the fourth embodiment of the first communication system, both the energy-supplying LD and the signal PD are arranged in the first optical module.

[0107] Correspondingly, another three embodiments of the first optical module 300 are as Figures 6a1 to 6a3As shown, the differences between the first optical module 390a1, the first optical module 390a2, and the first optical module 390a3 and the first optical module in the above embodiments are as follows: they can not only generate energy transfer light but also convert the feedback signal light into a feedback signal. The differences between the first optical module 390a1, the first optical module 390a2, and the first optical module 390a3 are as follows: the first optical module 390a1 converts the feedback signal light into a feedback signal through the signal PD 318, the first optical module 390a2 converts the feedback signal light into a feedback signal through an optical receiver, and the first optical module 390a3 converts the feedback signal light into a feedback signal through an optical transceiver. The electrical interface 317 on the second end 3012 of the housing of the first optical module 390a1, the first optical module 390a2, and the first optical module 390a3 is as Figure 6a4 shown, and includes a gold finger 317a and a first electrical interface 317b. The above feedback signal is sent to the connected first communication device through the gold finger 317a, and the power supply LD 218 receives the control signal (the first control signal or the second control signal) sent by the first communication device through the first electrical interface 317b. The first electrical interface 317b includes a first electrical connector 317b1 and a second electrical connector 317b2. The first electrical connector 317b1 is used to transmit the control signal, and the signal on the second electrical connector 317b2 is the reference ground signal of the control signal.

[0108] Another embodiment of the first optical module 300 is as Figure 6a5 shown. The difference between the first optical module 390b and the above first optical module 390a1 is that the processor 311 is also used to control the power supply LD 218 and is also used to respond to the above feedback signal sent by the signal PD 318. Accordingly, the first communication device 200 does not participate in power supply and is only used for communication.

[0109] Another embodiment of the first optical module 300 is as Figure 6b shown. The difference between the first optical module 391 and the first optical module 390 is that the optical receiver converts the feedback signal light D / C(d) / B(d) received through the optical fiber 313 at the fourth optical port 3122 into a feedback signal d.

[0110] Another embodiment of the first optical module 300 is as Figure 6c shown. The difference between the first optical module 392 and the first optical module 390 is that the optical transceiver converts the feedback signal light D / C(d) / B(d) into a feedback signal d.

[0111] Figure 6d The difference between the first optical module 393 shown and the first optical module 391 is that an optical circulator 3191 is added, and the third optical port 3121 and the fourth optical port 3122 are omitted, which is beneficial to further reducing the number of optical fibers and lowering the cost. Figure 6eThe difference between the first optical module 394 shown and the first optical module 392 is that an optical circulator 319 is added and the fourth optical port 3122 is omitted. Another feasible way is that the first optical module 393 retains the fourth optical port 3122, and replaces the optical circulator 3191 with an optical multiplexer. The optical output of the optical transmitter and the optical output of the power supply LD 218 can be docked with the first optical port 314 through the optical multiplexer.

[0112] The electrical interfaces 317 at the second end 3012 of the housings of the first optical module 390b, the first optical module 391 to the first optical module 394 are as Figure 6e1 shown.

[0113] Corresponding to the above-mentioned first communication system embodiment, a second communication system embodiment provided by the present application has, in addition to the function of communicating through optical fibers (for example, the optical communication function of a communication system for receiving power in a network formed by an optical and electrical hybrid cable), the function of receiving energy through optical fibers.

[0114] As Figure 7a shown, the second communication system 400 includes a second communication device 500 and a second optical module 600 plugged into the second communication device 500. The second communication device 500 can have the function of communicating through the second optical module and can also have the function of receiving optical energy. Among them, the function of the second communication device 500 communicating through the second optical module is similar to the function of a communication device (such as a wireless AP, a remote module, a pRRU, a 5G small base station, etc. in the vicinity) communicating through an optical module in the above-mentioned communication system for receiving power.

[0115] In an embodiment of the second communication system 400, the second communication device 500 is responsible for converting the power transmission light into electrical energy, providing energy for the second communication system 400, and sending out a feedback signal d, and the second optical module is responsible for converting the feedback signal d into a feedback signal light D / C(d) / B(d).

[0116] The first embodiment of the second communication device 500 is as Figure 7b shown. The second communication device 510 includes a processor 511, a memory 512, a network interface 513, a wireless module 514, an antenna, a monitoring PD (MPD) 516, and a photovoltaic PD 515.

[0117] The memory 512 is used to store programs and data. The network interface 513 is used to connect to the second optical module, enabling the second communication device 500 to communicate with the first communication system 100 for energy supply in the above embodiments through the second optical module and obtain energy. The photovoltaic PD 515 is used to convert the energy transmission light sent by the first communication system 100 into electrical energy (such as converting the first energy transmission light into the first electrical energy and the second energy transmission light into the second electrical energy) to power the second communication device 510. The MPD 516 detects the power of the above-mentioned first energy transmission light received by the photovoltaic PD 515 and reports it to the processor 511. Optionally, the first energy transmission light detected by the MPD 516 is obtained by splitting the first energy transmission light by a splitter (not shown in the figure). For example, the light inlet of the splitter is docked with the optical port on the second end of the second optical module housing, and the light outlets are respectively docked with the light inlet of the photovoltaic PD 515 and the light inlet of the MPD 516. Alternatively, the splitter is disposed inside the housing of the second optical module, and the light outlet of the splitter is docked with the light inlet of the photovoltaic PD 515 and the light inlet of the MPD 516 respectively through the optical port on the second end of the housing. Since the MPD 516 is used to monitor the energy transmission light, only a very small part (such as 1%) of the energy transmission light needs to be split, or in actual use, it can be set according to the actual situation. The part related to MPD monitoring below is similar to this. The wireless module 514 and the antenna are used to transmit and receive wireless communication signals with the mobile terminal. The processor 511 is used to process and forward wireless communication signals by running the programs in the memory 512. For example, after processing the communication signals or communication data sent by the mobile terminal, they are converted into communication signal light through the second optical module and sent to the first communication system 100. When powered by the photovoltaic PD 515, the processor 511 is further used to issue a feedback signal d (see the foregoing description in detail) according to the power of the first energy transmission light detected by the MPD 516. The network interface 513 can be used to transmit the feedback signal d to the connected second optical module, and after being converted by the second optical module, it is sent to the first communication system 100. Since a current is generated when the MPD 516 detects the power of the first energy transmission light, the MPD 516 is also used to provide current for converting the feedback signal d into the feedback signal light D. Optionally, the MPD 516 further detects the power of the second energy transmission light to further control the subsequent energy supply, and the detection principle is similar to that of the first energy transmission light.

[0118] The components and functional modules in the second communication device 500 are not limited to the content given in the above embodiments, and can be increased or decreased according to the actual situation. For example, when the second communication device 500 is in a wired connection with the terminal device, the antenna and the wireless module can be omitted. Or, in order to improve the security of communication, the second communication device 500 can further include an encryption module, etc.

[0119] Correspondingly, the first embodiment of the second optical module 600 is as follows Figure 7cAs shown, the difference between the second optical module 610 and the first optical module in the foregoing embodiment is as follows: It is used to plug into the second communication device 500, and includes a signal LD 611. Moreover, the transmission direction of the energy-carrying light in the second optical channel is from the first end of the second optical module housing to the second end, and enters the second communication device 510 through the second optical port 316 on the second end 3012 of the housing. Furthermore, when the second optical module 610 is plugged into the second communication device 510 and the photovoltaic PD 515 receives the energy-carrying light, the signal LD 611 obtains the drive current and the feedback signal d from the second communication device 510 through the electrical interface 317, and converts the feedback signal d into a feedback signal light D. The feedback signal light D is guided by the optical circulator 319 to the first optical port 314, and is sent to the first communication system 100 through the first optical port 314 and the connected optical fiber 313.

[0120] The second embodiment of the second optical module 600 is as Figure 7d As shown, the difference between the second optical module 620 and the second optical module 610 is that the energy-carrying light C and the feedback signal light D are each transmitted through an optical port. Among them, the energy-carrying light C is transmitted through the first sub-optical port 3141, and the feedback signal light D is transmitted through the second sub-optical port 3142.

[0121] Another feasible way is that the function of the signal LD 611 can also be implemented by an optical transmitter (such as Figure 7g as shown) or a BOSA (such as Figure 7h as shown). In this case, the signal LD 611 can be omitted from the second optical module 600. Moreover, the optical transmitter or BOSA converts the feedback signal d into a feedback signal light B(d), that is, multiplexes the communication signal light B to carry the feedback signal d. Correspondingly, the feedback signal light received by the first communication system 100 is B(d), and it can be converted into the feedback signal d by a method similar to that in the above embodiment.

[0122] The third embodiment of the second optical module 600 is as Figure 7e As shown, the difference between the second optical module 630 and the second optical module 610 is that the signal LD 611 is replaced by a splitter 631 and a signal modulator 632. The splitter 631 splits a small part (such as 10%) from the first energy-carrying light for the signal modulator, and the signal modulator modulates the feedback signal d onto this small part of the first energy-carrying light to obtain a feedback signal light C(d), that is, multiplexes the first energy-carrying light C to carry the feedback signal d. Correspondingly, the feedback signal light received by the first communication system 100 is C(d), and it can be converted into the feedback signal d by a method similar to that in the above embodiment.

[0123] The fourth embodiment of the second optical module 600 is as Figure 7fAs shown, the difference between the second optical module 640 and the second optical module 630 is that the energy transmission light C and the feedback signal light C(d) are each transmitted through a single optical fiber 313. Another two embodiments of the second optical module 600 are as follows Figure 7i and Figure 7j As shown, compared with the second optical module 641, the second optical module 643 is provided with an optical combiner / demultiplexer 3192. The second optical port 316, the optical transmitter and the optical receiver are connected to the first optical port 314 through the optical combiner / demultiplexer 3192, and the third optical port 3121 and the fourth optical port 3122 are omitted, so that the number of connected optical fibers can be further reduced. Compared with the second optical module 642, the second optical module 644 is provided with an optical combiner / demultiplexer 3192, and the third optical port 3121 is omitted. Another feasible way is that the second optical module 643 retains the third optical port 3121, and the optical inlet of the optical receiver and the second optical port 316 are connected to the first optical port 314 through the optical combiner / demultiplexer.

[0124] In another embodiment of the second communication system 400, the second communication device 500 is responsible for converting the feedback signal d into the feedback signal light D / C(d), and the second optical module 600 is responsible for converting the energy transmission light into electrical energy.

[0125] The second embodiment of the second communication device 500 is as follows Figure 8a As shown, the difference between the second communication device 520 and the second communication device 510 is that it includes a signal LD 611, the second optical module 600 supplies power to the processor 511 and the signal LD 611, and reports the power detection result of the first energy transmission light.

[0126] Correspondingly, the fifth and sixth embodiments of the second optical module 600 are as follows Figure 8b 、 Figure 8c As shown, the differences between the second optical module 650 and the second optical module 610, and between the second optical module 660 and the second optical module 620 are both that they include a photovoltaic PD 515 and an MPD 516. Moreover, the electrical energy obtained by the photovoltaic PD 515 is provided to the plugged second communication device 520 through the electrical interface 317, and the detection result of the MPD 516 and the current for driving the signal LD 611 are also sent to the second communication device 520 through the electrical interface 317.

[0127] The third embodiment of the second communication device 500 is as follows Figure 8d As shown, the difference between the second communication device 530 and the second communication device 520 is that the signal modulator 632 is used to replace the signal LD 611, and the signal modulator 632 uses a small part of the first energy transmission light provided by the second optical module to convert the feedback signal d into the feedback signal light C(d).

[0128] Correspondingly, the seventh and eighth embodiments of the second optical module 600 are as follows Figure 8eand 8f As shown in 8f , the differences between the second optical module 670 and the second optical module 650, and between the second optical module 680 and the second optical module 660 are that an optical splitter 631 and a fifth optical port 671 are added. The optical splitter 631 is located in the housing 3010, and the fifth optical port 671 is located at the second end 3012 of the housing 3010. The fifth optical port 671 provides a small part of the first energy transfer light split by the optical splitter 631 to the second communication device 530 for converting the feedback signal d into the feedback signal light C(d). Optionally, the fifth optical port 671 is a via hole.

[0129] Another possible structure of the second communication system 400 is that the second communication device 500 is responsible for converting the energy transfer light into electrical energy and converting the feedback signal d into the feedback signal light D / C(d). The second optical module 600 is responsible for transmitting the energy transfer light and the feedback signal light D / C(d).

[0130] The fourth and fifth embodiments of the second communication device 500 are respectively as Figure 9a 、 Figure 9b As shown in Figure 9b , the difference between the second communication device 540 and the foregoing embodiments of the second communication device 500 is that it includes both a photovoltaic PD 515 and an MPD 516, and also includes a signal LD611. The difference between the second communication device 550 and the second communication device 540 is that the signal LD 611 is replaced with an optical splitter 631 and a signal modulator 632.

[0131] Correspondingly, the ninth and tenth embodiments of the second optical module 600 are respectively as Figure 9c 、 Figure 9d As shown in Figure 9d , the differences between the second optical module 690 and the second optical module 360, and between the second optical module 6100 and the second optical module 370 are that the transmission directions of the energy transfer light and the feedback signal light D / C(d) are opposite.

[0132] The sixth and seventh embodiments of the second communication device 500 are respectively as Figure 9e 、 Figure 9f As shown in Figure 9f , the differences between the second communication device 560 and the second communication device 540, and between the second communication device 570 and the second communication device 550 are that an optical circulator 319 is added to combine the energy transfer light C and the feedback signal light D / C(d) into one path, so that only one optical port needs to be provided for the second communication device 550 at the 3012 end of the second optical module housing.

[0133] Correspondingly, the eleventh embodiment of the second optical module 600 is as Figure 9gAs shown, the second optical port 316 in the second optical module 6110 is used to provide power transmission light for the second communication device 550 / 560, and is also used to receive the feedback signal light D / C(d) sent by the second communication device 550 / 560. The difference between the second optical module 6110 and the second optical module 350 is that the transmission directions of the power transmission light and the feedback signal light D / C(d) are opposite. Another feasible way is that the second optical module 600 adds an optical circulator and a first optical port on the basis of the second optical module 6110, and transmits the power transmission light and the feedback signal light D / C(d) through one optical fiber each.

[0134] Another possible structure of the second communication system 400 is that the second communication device 500 is not only responsible for converting the power transmission light into electrical energy and converting the feedback signal d into the feedback signal light D / C(d), but also responsible for transmitting the power transmission light and the feedback signal light D / C(d). The second optical module 600 is not responsible for the tasks related to energy reception.

[0135] The eighth to eleventh embodiments of the second communication device 500 are respectively as Figure 9h , Figure 9i , Figure 9j and Figure 9k shown. The difference between the second communication devices 580 to 5110 and the second communication devices 540 to 570 is that optical ports 5171 / 5172 / 518 for connecting the optical fiber 313 are added.

[0136] Another embodiment of the second communication device 500 is as Figure 9k1 shown. In the second communication device 5111, the processor 511 obtains the monitoring results of the energy and the power transmission light from the connected second optical module through the network interface 513, and based on the energy and the monitoring results, sends a feedback signal to the second optical module through the network interface 513.

[0137] Corresponding to the second communication device 5111, the other two embodiments of the second optical module 600 are as Figure 10a1 and Figure 10a2 shown. The difference between the second optical module 6111 and the second optical module 6112 and the second optical module provided in the foregoing embodiments is that they can not only convert the power transmission light into electrical energy and provide it to the connected second communication device 5111 through the electrical interface 317, but also convert the above feedback signal received from the second communication device 5111 through the electrical interface 317 into the above feedback signal light. It should be noted that another feasible way is that, as Figures 7g to 7j shown in the second optical module, an optical transmitter or an optical transceiver is used to convert the above feedback signal into the above feedback signal light, so as to omit the signal LD or omit the optical splitter and the signal modulator.

[0138] Another possible structure of the second communication system 400 is that the second optical module 600 is not only responsible for converting the energy-carrying light into electrical energy and converting the feedback signal d into the feedback signal light D / C(d) / B(d), but also responsible for transmitting the energy-carrying light and the feedback signal light D / C(d) / B(d). The second communication device 500 is not responsible for the tasks related to energy reception, and the second optical module 600 supplies power to the second communication device 500.

[0139] The twelfth embodiment of the second optical module 600 is as Figure 10a3 shown. The difference between the second optical module 6120 and the foregoing embodiments is that it includes both the photovoltaic PD 515 and the MPD 516, and also includes the signal LD 611. And the MPD 516 reports the monitoring result to the processor 311, and the processor 311 issues the feedback signal d.

[0140] The thirteenth embodiment of the second optical module 600 is as Figure 10b shown. The difference between the second optical module 6130 and the second optical module 6120 is that the signal LD 611 is replaced by the optical splitter 631 and the signal modulator 632.

[0141] The fourteenth and fifteenth embodiments of the second optical module 600 are respectively as Figure 10c 、 Figure 10d shown. The difference between the second optical module 6140 and the second optical module 6120, and the difference between the second optical module 6150 and the second optical module 5130 are both that the energy-carrying light and the feedback signal light D / C(d) are transmitted through different optical ports respectively, so that the energy-carrying light and the feedback signal light D / C(d) are each transmitted by a single optical fiber.

[0142] Another two embodiments of the second optical module 600 are as Figure 10e and Figure 10f shown. The difference between the second optical module 6160 and the second optical modules 6140 and 6150 is that: the optical transmitter converts the feedback signal d into the feedback signal light B(d) and sends it to the third optical port 3121, and the third optical port 3121 sends the feedback signal light B(d) to the first communication system 100 through the optical fiber 313. The difference between the second optical module 6170 and the second optical module 6160 is that: the optical transceiver converts the feedback signal d into the feedback signal light B(d). Another two embodiments of the second optical module 600 are as Figure 10g and Figure 10hAs shown, compared with the second optical module 6160, the second optical module 6180 is provided with an optical multiplexer / demultiplexer 3192. The optical inlet of the photovoltaic PD 515, the optical transmitter and the optical receiver are docked to the first optical port 314 through the optical multiplexer / demultiplexer 3192, and the third optical port 3121 and the fourth optical port 3122 are omitted. Compared with the second optical module 6170, the second optical module 3190 is provided with an optical multiplexer / demultiplexer 3192, and the third optical port 3121 is omitted. Another feasible way is that the second optical module 6180 retains the third optical port 3121, and the optical inlet of the optical receiver and the optical inlet of the photovoltaic PD 515 are docked to the first optical port 314 through the optical multiplexer / demultiplexer 3192.

[0143] In the case where the security requirements are not high, the optical channel in the above embodiments can also be omitted, as long as there is enough space in the housing of the first optical module or the second optical module for the energy transmission light to pass unobstructed between the first end and the second end of the housing of the first optical module or the second optical module. Another feasible way is that the above optical channel is replaced by an optical fiber, which can reduce the optical loss and meet higher security requirements.

[0144] In the above embodiments, after the first optical module 300 is plugged into the first communication device 200, electrical energy can be obtained from the first communication device 200 through the gold fingers for operation. In the second communication system 400, when the photovoltaic PD 515 is included in the second communication device 500, the second optical module 600 obtains electrical energy from the second communication device 500 through the gold fingers. When the photovoltaic PD 515 is included in the second optical module 600, the second optical module 600 supplies power to the second communication device 500.

[0145] When the first communication system 100 provided in this application is networked with the second communication system 400, communication and energy supply can be carried out between the two through one to four optical fibers, and the number of optical ports for connecting the optical fibers at the first end of the housing of the first optical module 300 and the second optical module 600 needs to be the same as the number of optical fibers. Among them, the optical fiber for transmitting the energy transmission light C and the feedback signal light D / C(d) / B(d) can be one. As Figure 11a shown, the feedback signal d multiplexes the first energy transmission light, and the energy transmission light C and the feedback signal light C(d) are transmitted between the first communication system 101 (an embodiment of the first communication system 100) and the second communication system 401 (an embodiment of the second communication system 400) through a single optical fiber 313. At this time, there is one optical port at the first end of the housing of the first optical module of the first communication system 101 for transmitting the energy transmission light and the feedback signal light C(d), and this optical port is connected to one end of the single optical fiber 313. Correspondingly, there is also one optical port at the first end of the housing of the second optical module of the second communication system 401 for transmitting the energy transmission light and the feedback signal light C(d), and the difference is that the transmission direction is opposite, and this optical port is connected to the other end of the single optical fiber 313. Again, as Figure 11bAs shown, between the first communication system 101 and the second communication system 402 (an embodiment of the second communication system 400), power is also supplied through a single optical fiber, and the feedback signal light related to transmission and power supply is transmitted. The difference is that the communication system 402 uses the signal LD to carry the feedback signal d with the light wave D. When the first communication system 100 and the second communication system 400 supply power and communicate through a single optical fiber, as Figure 11c As shown, the first communication system 102 (an embodiment of the first communication system 100) and the second communication system 403 (an embodiment of the second communication system 400) use optical modules for protocol communication to transmit the feedback signal light D / C(d) / B(d). The second communication system 403 sends the feedback signal d to the second optical module, and the second optical module is responsible for transmitting the feedback signal d to the opposite first communication system 102 through optical communication, and then the first optical module in the first communication system 102 restores the feedback signal d. The power transmission light, the communication signal lights A and B, and the light waves D / C(d) / B(d) carrying the feedback signal d are combined into one path through an optical circulator and transmitted through a single optical fiber 313. Figure 11c The communication module shown in can be understood as a module with optical communication functions in the optical module, such as a module that can perform optoelectronic conversion, electro-optical conversion, and data processing. The optical circulator can be arranged in the optical module. Here, in order to more clearly show the structure related to power supply, the boundary between the communication device and the optical module is blurred.

[0146] Between the first communication system 100 and the second communication system 400, the transmission of the power transmission light C and the feedback signal light D / C(d) / B(d) can also be separated. As Figure 11d As shown, between the first communication system 101 and the second communication system 404 (an embodiment of the second communication system 400), two optical fibers 313 related to power supply are connected. One optical fiber 313 is used to transmit the power transmission light C, and the other is used to transmit the feedback signal light C(d). Or as Figure 11e As shown, between the first communication system 101 and the second communication system 405 (an embodiment of the second communication system 400), one optical fiber is used to transmit the power transmission light, and the other optical fiber is used to transmit the feedback signal light D. Or as Figure 11f As shown, the feedback signal light D / B(d) can be multiplexed with the optical fiber for communication of the optical module. The optical fiber for communication can be one or two. It can also be an additional optical fiber added for transmitting the feedback signal light D / B(d). Or as Figure 11g As shown, when the first communication device in the first communication system 100 is a switching center (Central Office, CO) such as a switch or a hub, it is connected to the AP (an embodiment of the second communication device in the second communication system 400) through two optical fibers. One is used for communication and transmitting the feedback signal light D / B(d), and the other is dedicated to power supply and transmits the power transmission light.

[0147] In the above embodiments, the first communication device 200 may be a switch or a hub (such as a Hub, RHUB, etc.), and the second communication device 500 may be a 5G small base station, an AP, a remote module, a pRRU, etc. The first communication device 200 and the second communication device 500 are connected by plugging in corresponding optical modules and are connected by optical fibers, and can be used to implement, for example, Figure 12a the campus network of the all-optical networking asteroid architecture as shown in Figure 12b and can also be used to implement, for example, Figure 12c the Ethernet as shown in Figure 12d and the distributed wifi based on radio over fiber (ROF) as shown in Figure 12e1 and Figure 12e2 and the layout of the 5G indoor small base station with optical fiber networking as shown in Figure 12e3 to achieve the purpose of reducing the number and cost of cables and simplifying network installation and maintenance. When the switch in the campus network of the asteroid architecture adopts the technical solution provided by the above first communication system 100 and the power-receiving (communication) device close to the terminal adopts the technical solution provided by the above system 400, the optical path between the switch and the power-receiving (communication) device can be as shown in Figure 12e1 and Figure 12e2 . The difference between Figure 12e1 and Figure 12e2 is that in

[0148] , the power transmission light and the feedback signal light are combined into one path in the switch and the power-receiving (communication) device, and in Figure 13 , the power transmission light and the feedback signal light are combined into one path in the optical module.

[0149] Step 1301: The first communication system 100 sends the first power transmission light to the communication component (the second optical module) of the second communication system 400. For example, the first power transmission light is generated by the processor of the first communication device 200 or the first optical module 300 to control the above-mentioned power supply LD, and then is transmitted to the second communication system 400 through the optical fiber connecting the first communication system 100 and the second communication system 400.

[0150] Step 1302: After the second communication system 400 receives the first energy transmission light through the optical fiber, it sends a feedback signal light to the first communication system 100 through the optical fiber based on the first energy transmission light. For example, the optoelectronic converter in the communication system 400 converts the first energy transmission light into first electrical energy to supply the second communication device 500, or further supply the processor of the second optical module 600, and the monitoring PD reports the result of monitoring the first energy transmission light to the second communication device 500 or the processor of the second optical module 600, and sends the current generated during the monitoring process to the electro-optical converter. The processor of the second communication device 500 or the second optical module 600 issues the above feedback signal to the electro-optical converter based on the above first electrical energy and the monitoring result. Driven by the current, the electro-optical converter converts the feedback signal into a feedback signal light and sends it to the first communication system 100 through the optical fiber.

[0151] Step 1303: In response to the feedback signal light, the first communication system 100 controls the subsequent second energy transmission light sent (such as increasing the power of the second energy transmission light), and sends the controlled second energy transmission light to the second communication system 300. For example, in the first communication system 100, the optoelectronic converter converts the feedback signal light into the feedback signal and sends it to the first communication device 200 or the processor of the first optical module 300. The processor of the first communication device 200 or the first optical module 300 controls the electro-optical converter to increase the power of the second energy transmission light in response to the feedback signal, so that the second energy transmission light meets the energy requirements of the second communication system 400.

[0152] It should be clear that the embodiments described in this application are only a part of the embodiments, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts belong to the scope of protection of this application.

[0153] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms of "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should be understood that the term " / and / " used herein is only a description of the association relationship of the associated objects, indicating that three relationships may exist. For example, a and / or b may mean: a exists alone, a and b exist simultaneously, and b exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

Claims

1. A first communication device, characterized in that, Comprising a processor and a memory, the memory includes instructions, and the processor reads and executes the instructions, causing the first communication device to perform the following operations: Sending a first energy-transmitting light to a second communication system through an optical fiber, where the first energy-transmitting light is used to provide energy for the second communication system; Receiving a feedback signal or a feedback signal light, where the feedback signal light is sent by the second communication system through the optical fiber, the feedback signal is obtained by converting the feedback signal light, and the generation and sending of the feedback signal light are based on the first energy-transmitting light; Controlling a second energy-transmitting light subsequently sent to the second communication system in response to the feedback signal.

2. The communication device according to claim 1, wherein The first communication device is connected to the optical fiber through a first optical module, the first communication device is electrically connected to the first optical module, and the first communication device further includes an electro-optical converter. The input end of the electro-optical converter is connected to the processor, and the optical output of the electro-optical converter is used to dock with the first optical module; The electro-optical converter is used to sequentially emit the first energy-transmitting light and the second energy-transmitting light to the first optical module under the control of the processor; The processor is further used to receive the feedback signal sent by the first optical module through the electrical connection, and in response to the feedback signal, control the second energy-transmitting light emitted by the electro-optical converter.

3. The communication device according to claim 1, characterized in that, The first communication device is connected to the optical fiber through a first optical module, the first communication device is electrically connected to the first optical module, and the first communication device further includes a photo-electric converter. The output end of the photo-electric converter is connected to the processor, and the optical input of the photo-electric converter is used to dock with the first optical module; The processor is used to send a first control signal to the first optical module through the electrical connection to control the first optical module to sequentially send the first energy-transmitting light and the second energy-transmitting light to the second communication system through the optical fiber; The photo-electric converter is used to receive the feedback signal light received by the first optical module through the optical fiber and convert the feedback signal light into the feedback signal; The processor is further used to, in response to the feedback signal, send a second control signal to the first optical module through the electrical connection to control the second energy-transmitting light sent by the first optical module to the second communication system through the optical fiber.

4. The communication device according to claim 1, characterized in that, The first communication device is connected to the optical fiber through a first optical module, and the first communication device is electrically connected to the first optical module; The processor is used to send a first control signal to the first optical module through the electrical connection to control the first optical module to sequentially send the first energy-transmitting light and the second energy-transmitting light to the second communication system through the optical fiber, and, receive the feedback signal sent by the first optical module through the electrical connection, and in response to the feedback signal, send a second control signal to the first optical module to control the second energy-transmitting light emitted by the first optical module.

5. The communication device according to claim 1, wherein The first communication device includes an electro-optical converter and an opto-electric converter. The processor is connected to the electro-optical converter and the opto-electric converter. The optical outlet of the electro-optical converter and the optical inlet of the opto-electric converter are used to dock with a first optical module connected to the optical fiber. Alternatively, the first communication device further includes an optical port, and the optical port is used to connect to the optical fiber, and the optical outlet of the electro-optical converter and the optical inlet of the opto-electric converter dock with the optical port; The processor is used to control the electro-optical converter to sequentially emit the first energy transmission light and the second energy transmission light to the first optical module or the optical port; The opto-electric converter is used to receive the feedback signal light received by the first optical module or the optical port through the optical fiber, and convert the feedback signal light into the feedback signal; The processor is further used to, in response to the feedback signal, control the second energy transmission light emitted by the electro-optical converter to the first optical module or the optical port.

6. The communication device according to claim 5, characterized in that The first communication device further includes an optical circulator / optical multiplexer / demultiplexer. The first port of the optical circulator / optical multiplexer / demultiplexer docks with the optical outlet of the electro-optical converter. The second port of the optical circulator / optical multiplexer / demultiplexer docks with the optical port or is used to dock with the first optical module. The third port of the optical circulator / optical multiplexer / demultiplexer docks with the optical inlet of the opto-electric converter; The optical circulator / optical multiplexer / demultiplexer is used to guide the first energy transmission light and the second energy transmission light emitted by the electro-optical converter to the first optical module or the optical port, and guide the feedback signal light from the first optical module or the optical port to the optical inlet of the opto-electric converter.

7. The communication device according to claim 5, characterized in that, The optical port includes a first optical port and a second optical port, and the optical fiber includes a first optical fiber and a second optical fiber; The first optical port docks with the optical outlet of the electro-optical converter and is used to connect to the second communication system through the first optical fiber; The second optical port docks with the optical inlet of the opto-electric converter and is used to connect to the second communication system through the second optical fiber.

8. A first optical module, characterized in that, It includes a housing and a first optical port; The first optical port is located at the first end of the housing, and the first optical port is used to connect to the second communication system through an optical fiber; The first optical port is further used to sequentially send the first energy transmission light and the second energy transmission light to the second communication system through the optical fiber, and receive the feedback signal light sent by the second communication system through the optical fiber. The first energy transmission light and the second energy transmission light are used to provide energy to the second communication system, and the feedback signal light is used to indicate and control the second energy transmission light. The generation and transmission of the feedback signal light are based on the first energy transmission light.

9. The optical module according to claim 8, wherein The first optical module further includes an electrical interface, an opto-electric converter, and a second optical port. The electrical interface and the second optical port are located at the second end of the housing, and the opto-electric converter is located in the housing; The electrical interface is used to be electrically connected to the first communication device. The optical inlet of the opto-electric converter docks with the first optical port. The output end of the opto-electric converter is connected to the electrical interface, and the second optical port is used to dock with the first communication device; The second optical port is further configured to provide the first energy transmission optical signal and the second energy transmission optical signal sent by the first communication device to the first optical port; The photoelectric converter is configured to convert the feedback signal optical signal into a feedback signal, and send the feedback signal to the first communication device through the electrical interface.

10. The optical module according to claim 9, wherein The first optical module further includes an optical circulator / optical combiner / demultiplexer, and the optical circulator / optical combiner / demultiplexer is located in the housing; The second optical port and the optical inlet of the photoelectric converter are docked with the first optical port through the optical circulator / optical combiner / demultiplexer.

11. The optical module according to claim 9, wherein, The first optical port includes a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, the first sub-optical port is docked with the second optical port, and the second sub-optical port is docked with the optical inlet of the photoelectric converter; The first sub-optical port is configured to connect to the second communication system through the first optical fiber, and the second sub-optical port is configured to connect to the second communication system through the second optical fiber.

12. The optical module according to claim 8, wherein, The first optical module further includes an electrical interface, an electro-optical converter, and a second optical port. The electrical interface and the second optical port are located at the second end of the housing, and the electro-optical converter is located in the housing; The electrical interface is configured to be electrically connected to the first communication device. The input end of the electro-optical converter is connected to the electrical interface, and the optical outlet of the electro-optical converter is docked with the first optical port; The second optical port is configured to dock with the first communication device and send the received feedback signal optical signal to the first communication device through the first optical port; The electro-optical converter is configured to sequentially emit the first energy transmission optical signal and the second energy transmission optical signal to the first optical port in response to receiving a first control signal sent by the first communication device through the electrical interface, and control the second energy transmission optical signal in response to a second control signal sent by the first communication device through the electrical interface. The second control signal is obtained by the first communication device in response to the feedback signal optical signal.

13. The optical module according to claim 12, wherein The first optical module further includes an optical circulator / optical combiner / demultiplexer, and the optical circulator / optical combiner / demultiplexer is located in the housing; The second optical port and the optical outlet of the electro-optical converter are docked with the first optical port through the optical circulator / optical combiner / demultiplexer.

14. The optical module according to claim 12, wherein The first optical port includes a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, the optical outlet of the electro-optical converter is docked with the first sub-optical port, and the second optical port is docked with the second sub-optical port; The first sub-optical port is configured to connect to the second communication system through the first optical fiber, and the second sub-optical port is configured to connect to the second communication system through the second optical fiber.

15. The optical module according to claim 8, wherein The first optical module further includes a second optical port, and the second optical port is located at the second end of the housing; The second optical port is configured to dock with the first communication device, send the first energy transmission optical signal and the second energy transmission optical signal sequentially sent by the first communication device to the first optical port, and send the received feedback signal optical signal to the first communication device through the first optical port.

16. The optical module according to claim 15, characterized in that, The first optical module further includes an optical circulator / optical combiner / demultiplexer, and the optical circulator / optical combiner / demultiplexer is located in the housing; The second optical port includes a third sub-optical port and a fourth sub-optical port, and the third sub-optical port and the fourth sub-optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer; The third sub-optical port is used to receive the first energy transmission light and the second energy transmission light from the first communication device, and the fourth sub-optical port is used to send the feedback signal light received through the first optical port to the first communication device.

17. The optical module according to claim 15, wherein The first optical port includes a first sub-optical port and a second sub-optical port, the optical fiber includes a first optical fiber and a second optical fiber, the second optical port includes a third sub-optical port and a fourth sub-optical port, the first sub-optical port is used to connect to the second communication system through the first optical fiber, and the second sub-optical port is used to connect to the second communication system through the second optical fiber; The third sub-optical port is used to receive the first energy transmission light and the second energy transmission light from the first communication device, and the first sub-optical port is used to send the first energy transmission light and the second energy transmission light to the second communication system; The second sub-optical port is used to receive the feedback signal light from the second communication system, and the fourth sub-optical port is used to send the feedback signal light received through the second sub-optical port to the first communication device.

18. The optical module according to claim 8, wherein The first optical module further includes a second optical port, the second optical port is located at the second end of the housing, the second optical port is used to dock with a first communication device, and the optical fiber is used to connect the first communication device and the second communication system; The first optical port and the second optical port are used to provide channels for the optical fiber.

19. The optical module according to claim 18, wherein The first optical port includes a first sub-optical port and a second sub-optical port, the second optical port includes a third sub-optical port and a fourth sub-optical port, and the optical fiber includes a first optical fiber and a second optical fiber; The first optical fiber is used to transmit the first energy transmission light and the second energy transmission light, and the second optical fiber is used to transmit the feedback signal light; The first sub-optical port and the third sub-optical port are used to provide channels for the first optical fiber, and the second optical port and the fourth sub-optical port are used to provide channels for the second optical fiber.

20. The optical module according to claim 8, wherein The first optical module further includes an electrical interface, a processor, an optical-electric converter, and an electro-optical converter. The electrical interface is located at the second end of the housing, and the processor, the optical-electric converter, and the electro-optical converter are located in the housing; The electrical interface is used to be electrically connected to a first communication device. The processor is connected to the optical-electric converter and the electro-optical converter. The optical entrance of the optical-electric converter and the optical exit of the electro-optical converter are docked with the first optical port. The processor, the optical-electric converter, and the electro-optical converter are connected to the electrical interface and are used to obtain electrical energy from the first communication device through the electrical interface; The processor is used to control the electro-optical converter to emit the first energy transmission light and the second energy transmission light to the first optical port based on the electrical energy; The optical-electric converter is used to convert the feedback signal light into a feedback signal based on the electrical energy; The processor is further used to control the second energy transmission light emitted by the electro-optical converter to the first optical port based on the electrical energy in response to the feedback signal.

21. The optical module according to claim 8, wherein, The first optical module further includes an electrical interface, an optical-electric converter, and an electro-optical converter. The electrical interface is located at the second end of the housing, and the processor, the optical-electric converter, and the electro-optical converter are located in the housing. The electrical interface is used for electrically connecting to a first communication device. The optical-electric converter and the electro-optical converter are connected to the electrical interface, and the optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the first optical port. The electro-optical converter is configured to emit the first energy transmission light to the first optical port in response to receiving a first control signal sent by the first communication device through the electrical interface, and to control the subsequent emission of the second energy transmission light in response to a second control signal sent by the first communication device. The optical-electric converter is used to convert the feedback signal light into a feedback signal and send the feedback signal to the first communication device through the electrical interface. The first control signal is used to indicate the emission of the first energy transmission light, the second control signal is used to indicate that the electro-optical converter controls the subsequent emission of the second energy transmission light, and the second control signal is obtained by the first communication device in response to the feedback signal.

22. The optical module according to claim 20 or 21, characterized in that, The first optical module further includes an optical circulator / optical multiplexer / demultiplexer, which is located in the housing. The optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

23. The optical module according to claim 20 or 21, characterized in that, The first optical port includes a first sub-optical port and a second sub-optical port. The optical fiber includes a first optical fiber and a second optical fiber. The first sub-optical port is used to connect to the second communication system through the first optical fiber, and the second sub-optical port is used to connect to the second communication system through the second optical fiber. The first optical fiber is used to transmit the first energy transmission light and the second energy transmission light, and the second optical fiber is used to receive the feedback signal light. The optical outlet of the electro-optical converter is docked with the first sub-optical port, and the optical inlet of the optical-electric converter is docked with the second sub-optical port.

24. The optical module according to any one of claims 12 to 14 and 21 to 23, characterized in that, The electrical interface includes a first electrical interface, and the first electrical interface is connected to the input end of the electro-optical converter. The first electrical interface is used to receive the first control signal and the second control signal sent by the first communication device.

25. The optical module according to any one of claims 9 to 11 and 20 to 24, characterized in that, The optical-electric converter is a photodetector, an optical receiver, or an optical transceiver.

26. A first communication system, characterized in that, Comprising the first communication device according to any one of claims 1 to 7 above, and the first optical module according to any one of claims 8 to 25 above, wherein the first optical module is plugged into the first communication device.

27. A second communication device, characterized in that, Comprising a processor and a memory, the memory includes instructions, and the processor reads and executes the instructions to cause the second communication device to perform the following operations: Receiving, through an optical fiber, the first energy transmission light and the second energy transmission light sequentially sent by a first communication system, and obtaining electrical energy based on the first energy transmission light. The first energy transmission light and the second energy transmission light are used to provide energy for the second communication device. Based on the first energy transmission light, a feedback signal is emitted, and the feedback signal light is sent to the first communication system through the optical fiber. The feedback signal is used to instruct the first communication system to control the subsequent emitted second energy transmission light. The feedback signal light is obtained from the feedback signal, and the generation and transmission of the feedback signal light are based on the first energy transmission light.

28. The communication device according to claim 27, wherein The second communication device is electrically connected to the second optical module. The second communication device further includes an optical-electric converter and a monitor. The processor is connected to the optical-electric converter and the monitor. The optical inlet of the optical-electric converter is used to dock with the second optical module. The optical-electric converter is configured to receive the first energy transmission light and the second energy transmission light obtained by the second optical module through the optical fiber, and respectively convert the first energy transmission light and the second energy transmission light into first electric energy and second electric energy, and provide the first electric energy and the second electric energy to the processor. The monitor is configured to monitor the power of the first energy transmission light, send the monitoring result to the processor through the electrical connection, and send the current obtained during the monitoring to the second optical module. The processor is configured to send the feedback signal to the second optical module through the electrical connection based on the first electric energy and the monitoring result.

29. The communication device according to claim 27, characterized in that, The second communication device is electrically connected to the second optical module. The second communication device further includes an electro-optical converter. The input end of the electro-optical converter is connected to the processor, and the optical outlet of the electro-optical converter is used to dock with the second optical module. The processor is configured to obtain the first electric energy, the second electric energy, and the monitoring result from the second optical module through the electrical connection, and send the feedback signal to the electro-optical converter based on the first electric energy and the monitoring result. The first electric energy is obtained from the first energy transmission light, the second electric energy is obtained from the second energy transmission light, and the monitoring result includes the power information of the first energy transmission light. The electro-optical converter is configured to obtain a current from the second optical module through the electrical connection, and convert the feedback signal into the feedback signal light under the drive of the current, and send it to the second optical module.

30. The communication device according to claim 29, wherein, The electro-optical converter is a laser diode. The input end of the electro-optical converter is connected to the processor. The drive end of the electro-optical converter is used to connect to the second optical module, and the optical outlet of the electro-optical converter is used to dock with the second optical module. Or The electro-optical converter is a signal modulator. The optical inlet and the optical outlet of the electro-optical converter are used to dock with the second optical module. The input end of the electro-optical converter is connected to the processor, and the drive end of the electro-optical converter is used to be electrically connected to the second optical module.

31. The communication device according to claim 27, characterized in that, The second communication device is electrically connected to a second optical module. The processor is configured to obtain first electric energy, second electric energy, and a monitoring result from the second optical module through the electrical connection, and based on the first electric energy and the monitoring result, send the feedback signal to the second optical module through the electrical connection. The first electric energy is obtained from the first energy-carrying light, the second electric energy is obtained from the second energy-carrying light, and the monitoring result includes power information of the first energy-carrying light.

32. The communication device according to claim 27, wherein The second communication device further includes an optical-electric converter, a monitor, and an electro-optical converter. The processor is connected to the optical-electric converter, the monitor, and the electro-optical converter. The monitor is connected to the electro-optical converter. The optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are used to dock with the second optical module, and the second optical module is connected to the optical fiber. Alternatively, the second communication device further includes an optical port. The optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the optical port, and the optical port is used to connect to the optical fiber. The optical-electric converter is configured to receive the first energy-carrying light and the second energy-carrying light through the second optical module or the optical port, and convert the first energy-carrying light and the second energy-carrying light into first electric energy and second electric energy respectively. The monitor is configured to monitor the power of the first energy-carrying light, send the monitoring result to the processor, and send the current obtained during the monitoring to the electro-optical converter. The processor is configured to send the feedback signal to the electro-optical converter based on the first electric energy and the monitoring result. The electro-optical converter is configured to convert the feedback signal into a feedback signal light under the drive of the current, and send it to the second optical module or the optical port, so that the second optical module or the optical port sends the feedback signal light to the first communication system through the optical fiber.

33. The communication device according to claim 32, characterized in that, The second communication device further includes an optical circulator / optical multiplexer / demultiplexer, which is configured to guide the first energy-carrying light and the second energy-carrying light from the second optical module or the optical port to the optical inlet of the optical-electric converter, and guide the feedback signal light from the optical outlet of the electro-optical converter to the second optical module or the optical port.

34. The communication device according to claim 32 or 33, characterized in that, The second communication device further includes an optical splitter. The electro-optical converter is a signal modulator. The optical inlet of the optical-electric converter and the optical inlet of the electro-optical converter are docked with the optical outlet of the optical splitter. The optical inlet of the optical splitter is used to dock with the second optical module or the optical port. The optical splitter is configured to split the first energy-carrying light and the second energy-carrying light to the optical inlet of the optical-electric converter and the optical inlet of the electro-optical converter.

35. The communication device according to claim 32 or 34, characterized in that, The optical port includes a first optical port and a second optical port. The optical fiber includes a first optical fiber and a second optical fiber. The first optical port is docked with the optical inlet of the optical-electric converter, and the first optical port is used to connect to the first communication system through the first optical fiber. The second optical port is docked with the optical outlet of the electro-optical converter, and the second optical port is used to connect to the first communication system through the second optical fiber.

36. A second optical module, characterized in that It includes a housing (3010) and a first optical port. The first optical port is located at the first end (3011) of the housing, and the first optical port is used to connect to a first communication system through an optical fiber; The first optical port is further configured to receive a first energy-transmitting optical signal and a second energy-transmitting optical signal sequentially sent by the first communication system through the optical fiber, and to send a feedback signal optical signal to the first communication system through the optical fiber. The first energy-transmitting optical signal and the second energy-transmitting optical signal are used to provide energy for a second communication device, and the feedback signal optical signal is used to instruct the first communication system to control the second energy-transmitting optical signal. The generation and transmission of the feedback signal optical signal are based on the first energy-transmitting optical signal.

37. The optical module according to claim 36, wherein The second optical module further includes an electro-optical converter, an electrical interface, and a second optical port. The electro-optical converter is located in the housing, and the electrical interface and the second optical port are located at the second end (3012) of the housing. The electrical interface is used to electrically connect to the second communication device; The input end and the driving end of the electro-optical converter are connected to the electrical interface, and the optical output of the electro-optical converter is docked with the first optical port; The second optical port is used to dock with the second communication device and send the first energy-transmitting optical signal and the second energy-transmitting optical signal received through the first optical port to the second communication device; The electro-optical converter is configured to receive the feedback signal sent by the second communication device through the electrical interface, convert the feedback signal into the feedback signal optical signal, and emit it to the first optical port.

38. The optical module according to claim 37, wherein The second optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical circulator / optical multiplexer / demultiplexer is located in the housing; The second optical port and the optical output of the electro-optical converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

39. The optical module according to claim 37, wherein The first optical port includes a first sub-optical port and a second sub-optical port. The first sub-optical port is docked with the second optical port, and the second sub-optical port is docked with the optical output of the electro-optical converter; The optical fiber includes a first optical fiber and a second optical fiber. The first sub-optical port is used to connect to the first communication system through the first optical fiber, and the second sub-optical port is used to connect to the first communication system through the second optical fiber.

40. The optical module according to any one of claims 37 to 39, characterized in that, The electro-optical converter is a laser diode, an optical transmitter, or an optical transceiver; or The optical module further includes a splitter, and the splitter is located in the housing. The electro-optical converter is a signal modulator. The second optical port and the optical input of the electro-optical converter are docked with the optical output of the splitter, and the optical input of the splitter is docked with the first optical port, and is configured to split the energy-transmitting optical signal to the second optical port and the optical input of the electro-optical converter.

41. The optical module according to claim 36, wherein The second optical module further includes a photoelectric converter, a monitor, an electrical interface, and a second optical port; The photoelectric converter and the monitor are located in the housing, the electrical interface and the second optical port are located at the second end of the housing, and the electrical interface is used to electrically connect to the second communication device; The output end of the photoelectric converter is connected to the electrical interface, and the optical input of the photoelectric converter is docked with the first optical port; The monitor is connected to the electrical interface, and the second optical port is used to dock with the second communication device; The photoelectric converter is used to convert the first energy-carrying light and the second energy-carrying light received by the first optical port into first electric energy and second electric energy, and provide the first electric energy and the second electric energy to the second communication device through the electrical interface; The monitor is used to monitor the power of the energy-carrying light, and send the monitoring result and the current obtained during the monitoring to the second communication device through the electrical interface; The second optical port is further used to provide the feedback signal light sent by the second communication device to the first optical port.

42. The optical module according to claim 41, wherein The second optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical circulator / optical multiplexer / demultiplexer is located in the housing; The second optical port and the optical inlet of the photoelectric converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

43. The optical module according to claim 41, wherein, The first optical port includes a first sub-optical port and a second sub-optical port. The optical inlet of the photoelectric converter is docked with the first sub-optical port, and the second optical port is docked with the second sub-optical port; The optical fiber includes a first optical fiber and a second optical fiber. The first sub-optical port is used to connect to the first communication system through the first optical fiber, and the second sub-optical port is used to connect to the first communication system through the second optical fiber.

44. The optical module according to any one of claims 41 to 43, characterized in that, The second optical module further includes a splitter and a fifth optical port. The splitter is located in the housing, and the fifth optical port is located at the second end of the housing. The fifth optical port is used to dock with the second communication device; The optical inlet of the splitter is docked with the first optical port, and the two optical outlets of the splitter are respectively docked with the fifth optical port and the optical inlet of the photoelectric converter; The splitter is used to split the first energy-carrying light and the second energy-carrying light to the fifth optical port and the optical inlet of the photoelectric converter; The fifth optical port is used to provide a part of the first energy-carrying light and a part of the second energy-carrying light to the second communication device.

45. The optical module according to claim 36, wherein The second optical module further includes a second optical port, and the second optical port is located at the second end of the housing; The second optical port is used to dock with the second communication device, provide the first energy-carrying light and the second energy-carrying light received by the first optical port to the second communication device, and provide the feedback signal light sent by the second communication device to the first optical port.

46. The optical module according to claim 45, wherein The second optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical circulator / optical multiplexer / demultiplexer is located in the housing; The second optical port includes a third sub-optical port and a fourth sub-optical port. The third sub-optical port and the fourth sub-optical port are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer; The third sub-optical port is used to provide the first energy-carrying light and the second energy-carrying light received through the first optical port to the second communication device, and the fourth sub-optical port is used to provide the feedback signal light sent by the second communication device to the first optical port.

47. The optical module according to claim 45, wherein The first optical port includes a first sub-optical port and a second sub-optical port. The second optical port includes a third sub-optical port and a fourth sub-optical port. The optical fiber includes a first optical fiber and a second optical fiber; The first sub-optical port is used to connect to the first communication system through the first optical fiber, and receive the first energy-carrying light and the second energy-carrying light through the first optical fiber; The second sub-optical port is used to connect to the first communication system through the second optical fiber and send the feedback signal light through the second optical fiber; the third sub-optical port is used to provide the first energy-carrying light and the second energy-carrying light received through the first sub-optical port to the second communication device; The fourth sub-optical port is used to provide the feedback signal light sent by the second communication device to the second sub-optical port.

48. The optical module according to claim 36, wherein The second optical module further includes a second optical port located at the second end of the housing; The second optical port is used to dock with the second communication device, and the optical fiber is used to connect the second communication device to the first communication system; The first optical port and the second optical port are used to provide channels for the optical fiber.

49. The optical module according to claim 48, characterized in that, The first optical port includes a first sub-optical port and a second sub-optical port, the second optical port includes a third sub-optical port and a fourth sub-optical port, and the optical fiber includes a first optical fiber and a second optical fiber; The first optical fiber is used to transmit the first energy-carrying light and the second energy-carrying light, and the second optical fiber is used to transmit the feedback signal light; The first sub-optical port and the third sub-optical port are used to provide channels for the first optical fiber, and the second optical port and the fourth sub-optical port are used to provide channels for the second optical fiber.

50. The optical module according to claim 36, characterized in that, The second optical module further includes an electrical interface, a processor, an optical-electric converter, a monitor, and an electro-optical converter; The electrical interface is located at the second end of the housing, and the processor, the optical-electric converter, the monitor, and the electro-optical converter are located in the housing; The optical-electric converter is electrically connected to the second communication device through the electrical interface, the processor is connected to the optical-electric converter, the monitor, and the electro-optical converter, the optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the first optical port, and the monitor is connected to the electro-optical converter; The optical-electric converter is used to convert the first energy-carrying light and the second energy-carrying light received by the first optical port into first electrical energy and second electrical energy, provide the first electrical energy and the second electrical energy to the processor, and provide the first electrical energy and the second electrical energy to the second communication device through the electrical interface; The monitor is used to monitor the power of the first energy-carrying light, send the monitoring result to the processor, and send the current obtained during the monitoring to the electro-optical converter; The processor is used to send the feedback signal to the electro-optical converter based on the first electrical energy and the monitoring result; The electro-optical converter is used to convert the feedback signal into the feedback signal light under the drive of the current and send it to the first optical port.

51. The optical module according to claim 36, wherein The second optical module further includes an electrical interface, an optical-electric converter, a monitor, and an electro-optical converter; The electrical interface is located at the second end of the housing, and the optical-electric converter, the monitor, and the electro-optical converter are located in the housing; The optical-electric converter, the monitor, and the electro-optical converter are electrically connected to the second communication device through the electrical interface. The optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the first optical port, and the monitor is connected to the electro-optical converter; The optical-electric converter is configured to convert the first energy-carrying light and the second energy-carrying light received by the first optical port into first electric energy and second electric energy, and provide the first electric energy and the second electric energy to the second communication device through the electrical interface; The monitor is configured to monitor the power of the first energy-carrying light, send the monitoring result to the second communication device through the electrical interface, and send the current obtained during the monitoring to the electro-optical converter; The electro-optical converter is configured to convert the feedback signal received from the second communication device through the electrical interface into the feedback signal light under the drive of the current, and emit the feedback signal light to the first optical port. The feedback signal is emitted by the second communication device based on the first electric energy and the monitoring result.

52. The optical module according to claim 50 or 51, characterized in that, The second optical module further includes an optical circulator / optical multiplexer / demultiplexer, and the optical circulator / optical multiplexer / demultiplexer is located in the housing; The optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter are docked with the first optical port through the optical circulator / optical multiplexer / demultiplexer.

53. The optical module according to claim 50 or 51, characterized in that, The first optical port includes a first sub-optical port and a second sub-optical port. The optical fiber includes a first optical fiber and a second optical fiber. The first sub-optical port is configured to connect to the first communication system through the first optical fiber, and the second sub-optical port is configured to connect to the first communication system through the second optical fiber; The optical inlet of the optical-electric converter is docked with the first sub-optical port, and the optical outlet of the electro-optical converter is docked with the second sub-optical port; The first optical fiber is configured to transmit the first energy-carrying light and the second energy-carrying light, and the second optical fiber is configured to transmit the feedback signal light.

54. The optical module according to any one of claims 50 to 53, characterized in that, The electro-optical converter is a laser diode, an optical transmitter, or an optical transceiver; or The second optical module includes a splitter. The splitter is located in the housing. The electro-optical converter is a signal modulator. The optical inlet of the splitter is docked with the first optical port. The two optical outlets of the splitter are respectively docked with the optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter. The splitter is configured to split the first energy-carrying light and the second energy-carrying light to the optical inlet of the optical-electric converter and the optical outlet of the electro-optical converter.

55. The optical module according to claim 41 or 51, characterized in that, The electrical interface further includes a first electrical interface, and the first electrical interface is connected to the output end of the optical-electric converter. The optical-electric converter is configured to provide the first electric energy and the second electric energy to the second communication device through the first electrical interface.

56. A second communication system, characterized in that, It includes the second communication device according to any one of claims 27 to 35 above, and the second optical module according to any one of claims 36 to 55 above. The second optical module is plugged into the second communication device.

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