Optical component, chip, active antenna unit, baseband unit, base station and communication system

Abstract

The invention provides an assembly, an active antenna unit, a baseband unit and a communication system, and the optical assembly can be suitable for CWDM networking and can also be suitable for single-fiber bidirectional networking through an optical transmitting module, a plurality of optical receiving sub-modules, a multiplexing module and a plurality of optical interfaces. The optical assembly may include an optical transmitting module, a plurality of optical receiving sub-modules, a multiplexing module, and a plurality of optical interfaces. The optical transmitting module can be used for outputting a first optical signal and a second optical signal to the multiplexing module. The multiplexing module is used for carrying out path switching on the first optical signal and the second optical signal and transmitting the signals to at least one optical interface. Any optical interface is used for outputting the first optical signal and / or the second optical signal; or, receiving the third optical signal and / or the fourth optical signal and transmitting the third optical signal and / or the fourth optical signal to the multiplexing module. The multiplexing module is also used for carrying out path switching on the third optical signal and transmitting the third optical signal to the first optical receiving sub-module, and carrying out path switching on the fourth optical signal and transmitting the fourth optical signal to the second optical receiving sub-module.

Description

Technical Field

[0001] This application relates to the field of optical communication technologies, and more particularly, to an optical component, a chip, an active antenna unit, a baseband unit, a base station, and a communication system. Background Art

[0002] With the rapid development of 5G communication systems, the number of base stations has gradually increased. A base station may include an active antenna unit (AAU) and a baseband unit (BBU). The AAU may include a first optical component, and the BBU may include a second optical component. The first optical component and the second optical component may be connected by an optical fiber. The optical component (the first optical component or the second optical component) may be used for a coarse wavelength-division multiplexing (CWDM) network (which may be simply referred to as a CWDM network), a two-fiber bidirectional network, or a single-fiber bidirectional (BiDi) network, etc. An optical module used for a CWDM network may be called a colored-light optical component, and an optical component used for a two-fiber bidirectional network may be called a gray-light optical component. The optical components provided by the related technologies may utilize the broadband response characteristics of photodetectors such as photodiodes (PDs), so that the optical components can also be used for two-fiber bidirectional networks, but the optical components are not applicable to single-fiber bidirectional networks.

[0003] Therefore, there is an urgent need for an optical component that can be applicable to CWDM networks and single-fiber bidirectional networks. Summary of the Invention

[0004] This application provides an optical component, an active antenna unit, a baseband unit, a base station, and a communication system. The optical component can be applicable to both CWDM networks and single-fiber bidirectional networks through an optical transmission module, a plurality of optical reception sub-modules, a multiplexing module, and a plurality of optical interfaces.

[0005] In a first aspect, this application provides an optical component, which may include an optical transmission module, a plurality of optical reception sub-modules, a multiplexing module, and a plurality of optical interfaces. Among them, the optical transmission module and each optical reception sub-module may be respectively connected to the multiplexing module, and the multiplexing module may be connected to each optical interface.

[0006] Optionally, the optical transmission module may be configured to: output a first optical signal and a second optical signal to the multiplexing module.

[0007] The multiplexing module may be configured to: perform path switching on the first optical signal and the second optical signal and transmit them to at least one optical interface among the plurality of optical interfaces.

[0008] Any one of the multiple optical interfaces can be used to: output the first optical signal and / or the second optical signal. Alternatively, any one of the optical interfaces can be used to receive the third optical signal and / or the fourth optical signal and transmit them to the multiplexing module.

[0009] That is to say, when the optical component is used as a transmitter, the first optical signal and the second optical signal can be output through the same optical interface or through different optical interfaces. When the optical component is used as a receiver, the third optical signal and the fourth optical signal can be received through the same optical interface and transmitted to the multiplexing module, or can be received through different optical interfaces and transmitted to the multiplexing module.

[0010] The multiplexing module can also be used to: switch the path of the third optical signal and transmit it to the first optical receiving sub-module among the multiple optical receiving sub-modules, and switch the path of the fourth optical signal and transmit it to the second optical receiving sub-module among the multiple optical receiving sub-modules.

[0011] It can be seen that the multiple optical receiving sub-modules can include the first optical receiving sub-module and the second optical receiving sub-module. It can be understood that the third optical signal and the fourth optical signal received through the same optical interface can be transmitted to different optical receiving sub-modules (i.e., the first optical receiving sub-module and the second optical receiving sub-module) through the path switching of the multiplexing module. Of course, the third optical signal and the fourth optical signal received through different optical interfaces can also be transmitted to different optical receiving sub-modules through the path switching of the multiplexing module.

[0012] It can also be seen that the optical component provided in this application can, through the multiplexing module, output the first optical signal, the second optical signal, and the fifth optical signal through the same optical interface or different optical interfaces, and can also, through the multiplexing module, transmit the third optical signal, the fourth optical signal, and the sixth optical signal received from the same optical interface or different optical interfaces to different optical receiving sub-modules.

[0013] The optical component provided in this application can use the multiplexing module to switch the paths of the first optical signal and the second optical signal to output the first optical signal and the second optical signal through the same optical interface or different optical interfaces, and can also use the multiplexing module to switch the paths of the third optical signal and the fourth optical signal to transmit the third optical signal and the fourth optical signal to different optical receiving sub-modules, so that the optical component provided in this application can be applicable not only to CWDM networking and bi-fiber bidirectional networking, but also to single-fiber bidirectional networking. That is to say, compared with the related art, the optical component provided in this application has a wide applicable range and strong applicability.

[0014] Exemplarily, the optical transmitting module can also be used to: output the fifth optical signal to the multiplexing module.

[0015] The multiplexing module can also be used to: switch the path of the fifth optical signal and transmit it to at least one of the multiple optical interfaces.

[0016] Any optical interface can also be used for: outputting a fifth optical signal. Alternatively, any optical interface can also be used for: receiving a sixth optical signal and transmitting it to the multiplexing module. That is to say, when the optical component is used as a transmitting end, the first optical signal, the second optical signal, and the fifth optical signal can be output through the same optical interface or through different optical interfaces. When the optical component is used as a receiving end, the third optical signal, the fourth optical signal, and the sixth optical signal can be received through the same optical interface and transmitted to the multiplexing module, or can be received through different optical interfaces and transmitted to the multiplexing module.

[0017] The multiplexing module can also be used for: switching the path of the sixth optical signal and transmitting it to the third optical receiving sub-module among multiple optical receiving sub-modules.

[0018] It can be seen that the multiple optical receiving sub-modules can also include a third optical receiving sub-module. It can be understood that the third optical signal, the fourth optical signal, and the fifth optical signal received through the same optical interface can be transmitted to different optical receiving sub-modules (i.e., the first optical receiving sub-module, the second optical receiving sub-module, and the third optical receiving sub-module) through the path switching of the multiplexing module. Of course, the third optical signal, the fourth optical signal, and the sixth optical signal received through different optical interfaces can also be transmitted to different optical receiving sub-modules through the path switching of the multiplexing module.

[0019] It can be seen that the optical component provided in this application can, through the multiplexing module, output the first optical signal, the second optical signal, and the fifth optical signal through the same optical interface or different optical interfaces, and can also, through the multiplexing module, transmit the third optical signal, the fourth optical signal, and the sixth optical signal received from the same optical interface or different optical interfaces to different optical receiving sub-modules.

[0020] Optionally, the optical transmitting module can include a first optical transmitting sub-module and a second optical transmitting sub-module. Alternatively, the optical transmitting module can include a first optical transmitting sub-module, a second optical transmitting sub-module, and a third optical transmitting sub-module. The multiple optical interfaces can include a first optical interface and a second optical interface. Alternatively, the multiple optical interfaces can include a first optical interface, a second optical interface, and a third optical interface.

[0021] In a possible implementation, the multiplexing module can include a first optical switch, a second optical switch, a first optical interferometer, a second optical interferometer, a third optical interferometer, a fourth optical interferometer, and a fifth optical interferometer.

[0022] The first port of the first optical switch can be connected to the first optical transmission sub-module for receiving a first optical signal. The second port of the first optical switch can be connected to the first port of the first optical interferometer, and the third port of the first optical switch can be connected to the first port of the second optical interferometer. The second port of the first optical interferometer can be connected to the fourth port of the fourth optical interferometer, and the third port of the first optical interferometer can be connected to the first optical interface. The second port of the second optical interferometer can be connected to the second optical transmission sub-module in the optical transmission module for receiving a second optical signal. The third port of the second optical interferometer can be connected to the first port of the fifth optical interferometer. The first port of the fourth optical interferometer can be connected to the first optical reception sub-module for transmitting a third optical signal to the first optical reception sub-module. The second port of the fourth optical interferometer can be connected to the second optical reception sub-module for transmitting a fourth optical signal to the second optical reception sub-module. The third port of the fourth optical interferometer can be connected to the first port of the third optical interferometer. The second port of the third optical interferometer can be connected to the second port of the fifth optical interferometer, and the third port of the third optical interferometer can be connected to the second port of the second optical switch. The third port of the fifth optical interferometer can be connected to the first port of the second optical switch, and the third port of the second optical switch can be connected to the second optical interface.

[0023] Further, the multiplexing module may further include a third optical switch, a sixth optical interferometer, and a seventh optical interferometer.

[0024] The first end of the third optical switch can be connected to the third optical transmission sub-module for receiving a fifth optical signal. The second port of the third optical switch can be connected to the first port of the seventh optical interferometer, and the third port of the third optical switch can be connected to the second port of the sixth optical interferometer. The first port of the sixth optical interferometer can be connected to the third port of the second optical interferometer, and the third port of the sixth optical interferometer can be connected to the first port of the fifth optical interferometer. The second port of the seventh optical interferometer can be connected to the third port of the third optical interferometer, the third port of the seventh optical interferometer can be connected to the third optical interface, and the fourth port of the seventh optical interferometer can be connected to the second port of the second optical switch. The fourth port of the third optical interferometer can be connected to the third optical reception sub-module for transmitting a sixth optical signal to the third optical reception sub-module.

[0025] In another possible implementation, the multiplexing module may include a first optical switch, a second optical switch, a first optical interferometer, a second optical interferometer, a third optical interferometer, and a fourth optical interferometer;

[0026] The first port of the first optical switch can be connected to the second optical transmitting sub-module for receiving a second optical signal. The second port of the first optical switch can be connected to the first port of the second optical interferometer, and the third port of the first optical switch can be connected to the second port of the first optical interferometer. The first port of the first optical interferometer can be connected to the first optical transmitting sub-module for receiving a first optical signal. The third port of the first optical interferometer can be connected to the first port of the fourth optical interferometer. The second port of the second optical interferometer can be connected to the fourth port of the third optical interferometer, the third port of the second optical interferometer can be connected to the first optical interface among multiple optical interfaces, and the fourth port of the second optical interferometer can be connected to the second port of the second optical switch. The first port of the third optical interferometer can be connected to the first optical receiving sub-module for transmitting a third optical signal to the first optical receiving sub-module. The second port of the third optical interferometer can be connected to the second optical receiving sub-module for transmitting a fourth optical signal to the second optical receiving sub-module. The third port of the third optical interferometer can be connected to the second port of the fourth optical interferometer, the third port of the fourth optical interferometer can be connected to the first port of the second optical switch, and the third port of the second optical switch can be connected to the second optical interface among multiple optical interfaces.

[0027] Further, the multiplexing module may further include a third optical switch, a fifth optical interferometer, a sixth optical interferometer, and a seventh optical interferometer.

[0028] The first port of the third optical switch can be connected to the third optical transmitting sub-module for receiving a fifth optical signal. The second port of the third optical switch can be connected to the first port of the fifth optical interferometer, and the third port of the third optical switch can be connected to the first port of the sixth optical interferometer. The second port of the fifth optical interferometer can be connected to the fourth port of the seventh optical interferometer, and the third port of the fifth optical interferometer can be connected to the third optical interface among multiple optical interfaces. The second port of the sixth optical interferometer can be connected to the first optical transmitting sub-module in the optical transmitting module for receiving a first optical signal. The third port of the sixth optical interferometer can be connected to the first port of the first optical interferometer. The first port of the seventh optical interferometer can be connected to the third optical receiving sub-module for transmitting a sixth optical signal to the third optical receiving sub-module. The second port of the seventh optical interferometer can be connected to the second optical receiving sub-module for transmitting a fourth optical signal to the second optical receiving sub-module. The third port of the seventh optical interferometer can be connected to the second port of the third optical interferometer.

[0029] In another possible implementation, the multiplexing module may include a first optical switch, a second optical switch, a third optical switch, a first optical interferometer, a second optical interferometer, a third optical interferometer, a fourth optical interferometer, a fifth optical interferometer, and a sixth optical interferometer.

[0030] The first port of the first optical switch can be connected to the first optical transmission sub-module for receiving a first optical signal. The second port of the first optical switch can be connected to the first port of the first optical interferometer, and the third port of the first optical switch can be connected to the first port of the third optical interferometer. The second port of the first optical interferometer can be connected to the fourth port of the sixth optical interferometer, and the third port of the first optical interferometer can be connected to the first optical interface among multiple optical interfaces.

[0031] The first port of the third optical switch can be connected to the second optical transmission sub-module for receiving a second optical signal. The second port of the third optical switch can be connected to the first port of the second optical interferometer, and the third port of the third optical switch can be connected to the second port of the third optical interferometer. The second port of the second optical interferometer can be connected to the fourth port of the fifth optical interferometer, the third port of the second optical interferometer can be connected to the second optical interface among multiple optical interfaces, and the fourth port of the second optical interferometer can be connected to the second port of the second optical switch. The third port of the third optical interferometer can be connected to the first port of the fourth optical interferometer, the second port of the fourth optical interferometer can be connected to the third port of the fifth optical interferometer, and the third port of the fourth optical interferometer can be connected to the first port of the second optical switch. The third port of the second optical switch can be connected to the third optical interface among multiple optical interfaces. The first port of the fifth optical interferometer can be connected to the first optical receiving sub-module for transmitting a third optical signal to the first optical receiving sub-module. The second port of the fifth optical interferometer can be connected to the second port of the sixth optical interferometer. The first port of the sixth optical interferometer can be connected to the second optical receiving sub-module for transmitting a fourth optical signal to the second optical receiving sub-module.

[0032] Furthermore, the multiplexing module may further include a seventh optical interferometer. The first port of the seventh optical interferometer can be connected to the third port of the first optical switch. The second port of the seventh optical interferometer can be connected to the third optical transmission sub-module for receiving a fifth optical signal. The third port of the seventh optical interferometer can be connected to the first port of the third optical interferometer.

[0033] Of course, in addition to the above-described structure, the multiplexing module may also adopt other structures to implement the switching of the optical signal path, which is not limited in this application.

[0034] In one example, both the first optical transmission sub-module and the second optical transmission sub-module may include a laser. The laser may have a modulation function. Thus, the laser can modulate an electrical signal into an optical signal (i.e., the first optical signal or the second optical signal) and output it to the multiplexing module.

[0035] In another example, both the first optical transmission sub-module and the second optical transmission sub-module may include a continuous light source and a modulator. Among them, the continuous light source can emit a continuous optical carrier, and the modulator can modulate an electrical signal onto the continuous optical carrier to obtain an optical signal.

[0036] In yet another example, both the first optical transmission sub-module and the second optical transmission sub-module may include a transmitter optical subassembly (TOSA). The TOSA may convert an electrical signal into an optical signal (i.e., the first optical signal, the second optical signal, or the fifth optical signal) and output it to the multiplexing module.

[0037] Of course, the first optical transmission sub-module and the second optical transmission sub-module may also output the first optical signal and the second optical signal respectively through other means, which are not limited in this application.

[0038] Optionally, each optical reception sub-module may include a receiver optical subassembly (ROSA). The ROSA may convert an optical signal (i.e., the third optical signal, the fourth optical signal, or the sixth optical signal) into an electrical signal.

[0039] Exemplarily, the first optical signal has a first wavelength, the second optical signal has a second wavelength, the third optical signal has a third wavelength, the fourth optical signal has a fourth wavelength, the fifth optical signal has a fifth wavelength, and the sixth optical signal has a sixth wavelength.

[0040] Optionally, the first wavelength, the second wavelength, and the fifth wavelength are all different. That is to say, the wavelengths of the optical signals output by the optical transmission module are different.

[0041] In addition, the first wavelength, the second wavelength, the fifth wavelength, and the third wavelength are all different. The first wavelength, the second wavelength, the fifth wavelength, and the fourth wavelength are all different. The first wavelength, the second wavelength, the fifth wavelength, and the sixth wavelength are all different. That is to say, the wavelengths of the optical signals output by the optical transmission module are different from the wavelengths of the optical signals received by the multiple optical interfaces.

[0042] In a second aspect, the present application provides a chip, which may include the optical component provided in the first aspect and its possible implementation manners.

[0043] In a third aspect, the present application provides an active antenna unit (AAU). The AAU may include the chip provided in the second aspect and its possible implementation manners.

[0044] In a fourth aspect, the present application provides a base-band unit (BBU). The BBU may include the chip provided in the second aspect and its possible implementation manners.

[0045] In a fifth aspect, the present application provides a base station, including an AAU provided by the third aspect and its possible implementation manners, and a BBU provided by the third aspect and its possible implementation manners. The AAU can be connected to the BBU.

[0046] In a sixth aspect, the present application provides a communication system, including a terminal device, a communication network, and the base station provided by the fifth aspect. The terminal device is connected to the base station through the communication network.

[0047] It should be understood that the technical solutions of the second to sixth aspects of the present application are consistent with those of the first aspect of the present application, and the beneficial effects obtained by each aspect and the corresponding feasible implementation manners are similar, which will not be elaborated herein. Description of the Drawings

[0048] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are 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.

[0049] Figure 1 It is a schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0050] Figure 2 It is another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0051] Figure 3 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0052] Figure 4 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0053] Figure 5 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0054] Figure 6 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0055] Figure 7 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0056] Figure 8 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0057] Figure 9 It is yet another schematic structural diagram of an optical component 10 in an embodiment of the present application;

[0058] Figure 10 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0059] Figure 11 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0060] Figure 12 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0061] Figure 13 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0062] Figure 14 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0063] Figure 15 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0064] Figure 16 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0065] Figure 17 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0066] Figure 18 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0067] Figure 19 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0068] Figure 20 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0069] Figure 21 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0070] Figure 22 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0071] Figure 23 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0072] Figure 24 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0073] Figure 25 Another schematic structural diagram of the optical component 10 in the embodiment of the present application;

[0074] Figure 26 This is another schematic structural diagram of the optical component 10 in the embodiments of the present application;

[0075] Figure 27 This is another schematic structural diagram of the optical component 10 in the embodiments of the present application;

[0076] Figure 28 This is another schematic structural diagram of the optical component 10 in the embodiments of the present application. Detailed implementation manners

[0077] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0078] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0079] The terms "first", "second", etc. in the description of the embodiments, claims and drawings of the present application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0080] It should be understood that in the present application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" may mean: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B may be singular or plural. The character " / " generally means that the associated objects before and after are in an "or" relationship. "At least one (one) of the following" or similar expressions refer to any combination of these items, including any combination of single item (one) or plural items (ones). For example, at least one (one) of a, b or c may mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c may be single or multiple.

[0081] With the rapid development of 5G communication systems, the number of base stations has gradually increased. A base station may include an active antenna unit (AAU) and a baseband unit (BBU). The BBU may include a centralized unit (CU) and a distributed unit (DU). Among them, the communication between the AAU and the DU is called fronthaul, the communication between the DU and the CU is called midhaul, and the communication between the CU and the core network is called backhaul. The AAU may include a first optical module, and the DU may include a second optical module. The first optical module and the second optical module may be connected by an optical fiber. The optical module (the first optical module or the second optical module) may be used for a coarse wavelength-division multiplexing (CWDM) network (which may be abbreviated as CWDM network), a two-fiber bidirectional network, or a single-fiber bidirectional (BiDi) network, etc. The optical module used for CWDM network may be called a colored optical module, and the optical module used for two-fiber bidirectional network may be called a gray optical module. The optical module provided by the related technology may utilize the broadband response characteristics of a photodetector such as a photodiode (PD), so that the optical module can also be used for two-fiber bidirectional network, but the optical module is not applicable to single-fiber bidirectional network.

[0082] To overcome the above deficiencies, an embodiment of the present application provides an optical component, as Figure 1 and Figure 2 shown. The optical component 10 may be used to transmit or receive an optical signal (OS). That is to say, the optical component 10 may be used as a transmitting end or a receiving end. The optical component 10 may include an optical transmitting module 1, a plurality of optical receiving sub-modules 2, a multiplexing module 3, and a plurality of optical interfaces 4. Among them, the optical transmitting module 1 and the plurality of optical receiving sub-modules 2 may be respectively connected to the multiplexing module 2, and the multiplexing module 2 may be connected to each optical interface.

[0083] Hereinafter, an example will be given in which the plurality of optical receiving sub-modules 2 include two optical receiving sub-modules, and the plurality of optical interfaces 4 include two optical interfaces.

[0084] As Figure 1 shown, the plurality of optical receiving sub-modules 2 may include an optical receiving sub-module 21 (i.e., the first optical receiving sub-module) and an optical receiving sub-module 22 (i.e., the second optical receiving sub-module), and the plurality of optical interfaces 4 may include an optical interface 41 (i.e., the first optical interface) and an optical interface 42 (i.e., the second optical interface).

[0085] Referring to Figure 2, the optical transmission module 1 can be used to: output an optical signal OS1 (i.e., the first optical signal) and an optical signal OS2 (i.e., the second optical signal) to the multiplexing module 3.

[0086] When the optical component 10 is used as the transmitting end, the multiplexing module 3 can be used to: perform path switching on the optical signals OS1 and OS2 and transmit them to at least one of the multiple optical interfaces 4. That is to say, after performing path switching on the optical signals OS1 and OS2, the multiplexing module 3 can transmit the optical signals OS1 and OS2 to one of the multiple optical interfaces 4 (such as the optical interface 42) or multiple optical interfaces (such as the optical interfaces 41 and 42).

[0087] When the optical component 10 is used as the transmitting end, any optical interface (such as the optical interface 42) can be used to: output the optical signal OS1 and / or the optical signal OS2. That is to say, when the optical component 10 is used as the transmitting end, the optical signals OS1 and OS2 can be output through the same optical interface or through different optical interfaces.

[0088] When the optical component 10 is used as the receiving end, any optical interface (such as the optical interface 42) can be used to: receive the optical signal OS3 (the third optical signal) and / or the optical signal OS4 (the fourth optical signal) and transmit them to the multiplexing module 3. That is to say, when the optical component 10 is used as the receiving end, the optical signals OS3 and OS4 can be received and transmitted to the multiplexing module 3 through the same optical interface, and can also be received and transmitted to the multiplexing module 3 through different optical interfaces.

[0089] When the optical component 10 is used as the receiving end, the multiplexing module 3 can be used to: perform path switching on the optical signal OS3 and transmit it to the optical receiving sub-module 21 (i.e., the first optical receiving sub-module), and perform path switching on the optical signal OS4 and transmit it to the optical receiving sub-module 22 (i.e., the second optical receiving sub-module).

[0090] It can be seen that the optical signals OS3 and OS4 received by the same optical interface can be transmitted to different optical receiving sub-modules through path switching of the multiplexing module 3. Of course, the optical signals OS3 and OS4 received by different optical interfaces can also be transmitted to different optical receiving sub-modules through path switching of the multiplexing module 3.

[0091] Embodiment of the present application Figure 1The provided optical component 10 can use the multiplexing module 3 to perform path switching on the optical signals OS1 and OS2 to enable the optical signals OS1 and OS2 to be output through the same optical interface or different optical interfaces. It can also use the multiplexing module 3 to perform path switching on the optical signals OS3 and OS4 to transmit the optical signals OS3 and OS4 to different optical receiving sub-modules, so that the optical component 10 can be applicable not only to CWDM networking and bi-directional dual-fiber networking, but also to bi-directional single-fiber networking. That is to say, compared with the related art, the optical component 10 provided in the embodiment of the present application has a wide applicable range and strong applicability.

[0092] The following will be described by taking an example in which the multiple optical receiving sub-modules 2 include three optical receiving sub-modules and the multiple optical interfaces 4 include three optical interfaces.

[0093] As Figure 2 shown, the multiple optical receiving sub-modules 2 may include an optical receiving sub-module 21, an optical receiving sub-module 22, and an optical receiving sub-module 23 (i.e., the third optical receiving sub-module), and the multiple optical interfaces 4 may include an optical interface 41, an optical interface 42, and an optical interface 43 (i.e., the third optical interface).

[0094] Referring to Figure 3 , the optical transmission module 1 can be used to: output the optical signals OS1, OS2, and OS5 (i.e., the fifth optical signal) to the multiplexing module 3.

[0095] When the optical component 10 is used as a transmitting end, the multiplexing module 3 can be used to: perform path switching on the optical signals OS1, OS2, and OS5 and transmit them to at least one of the multiple optical interfaces 4. That is to say, after performing path switching on the optical signals OS1, OS2, and OS5, the multiplexing module 3 can transmit the optical signals OS1, OS2, and OS5 to one of the multiple optical interfaces 4 (such as the optical interface 43) or multiple optical interfaces (such as the optical interfaces 41, 42, and 43).

[0096] When the optical component 10 is used as a transmitting end, any optical interface (such as the optical interface 43) can be used to: output at least one of the optical signals OS1, OS2, or OS3. That is to say, when the optical component 10 is used as a transmitting end, the optical signals OS1, OS2, and OS3 can be output through the same optical interface or different optical interfaces.

[0097] When the optical component 10 is used as a receiving end, any optical interface (such as the optical interface 43) can be used to: receive at least one of the optical signal OS3 (i.e., the third optical signal), the optical signal OS4 (i.e., the fourth optical signal), or the optical signal OS6 (i.e., the sixth optical signal) and transmit it to the multiplexing module 3. That is to say, when the optical component 10 is used as a receiving end, the optical signals OS3, OS4, and OS6 can be received through the same optical interface and transmitted to the multiplexing module 3, or can be received through different optical interfaces and transmitted to the multiplexing module 3.

[0098] When the optical component 10 is used as a receiving end, the multiplexing module 3 can be used to: perform path switching on the optical signal OS3 and transmit it to the optical receiving sub-module 21, perform path switching on the optical signal OS4 and transmit it to the optical receiving sub-module 22, and perform path switching on the optical signal OS6 and transmit it to the optical receiving sub-module 23 (i.e., the third optical receiving sub-module).

[0099] It can be seen that the optical component 10 provided by the embodiment of the present application can, through the multiplexing module 3, output the optical signals OS1, OS2, and OS5 through the same optical interface or different optical interfaces, and can also, through the multiplexing module 3, transmit the optical signals OS3, OS4, and OS6 received from the same optical interface or different optical interfaces to different optical receiving sub-modules.

[0100] The embodiment of the present application Figure 2 The provided optical component 10 can use the multiplexing module 3 to perform path switching on the optical signals OS1, OS2, and OS5 to output the optical signals OS1, OS2, and OS5 through the same optical interface or different optical interfaces, and can also use the multiplexing module 3 to perform path switching on the optical signals OS3, OS4, and OS6 to transmit the optical signals OS3, OS4, and OS6 to different optical receiving sub-modules, so that the optical component 10 can be applicable not only to CWDM networking and bi-fiber bidirectional networking, but also to single-fiber bidirectional networking. That is to say, compared with the related art, the optical component 10 provided by the embodiment of the present application has a wide applicable range and strong applicability.

[0101] Exemplarily, the optical signal OS1 can have a first wavelength, the optical signal OS2 can have a second wavelength, the optical signal OS3 can have a third wavelength, the optical signal OS4 can have a fourth wavelength, the optical signal OS5 can have a fifth wavelength, and the optical signal OS6 can have a sixth wavelength.

[0102] Optionally, the first wavelength, the second wavelength, and the fifth wavelength are all different. That is to say, the wavelengths of the optical signals output by the optical transmission module 1 are different.

[0103] In addition, the first wavelength, the second wavelength, the fifth wavelength, and the third wavelength are all different. The first wavelength, the second wavelength, the fifth wavelength, and the fourth wavelength are all different. The first wavelength, the second wavelength, the fifth wavelength, and the sixth wavelength are all different. That is to say, the wavelength of the optical signal output by the optical emission module 1 is different from the wavelengths of the optical signals received by the multiple optical interfaces 4.

[0104] Hereinafter, the optical transmission sub-module will be introduced by taking the optical transmission sub-module 11 and the optical reception sub-module 21 as examples.

[0105] For the optical transmission sub-module 11, the optical transmission sub-module 11 may include a laser. The laser may have a modulation function. Thus, the laser can modulate an electrical signal into an optical signal OS1 and output it.

[0106] In another example, the optical transmission sub-module 11 may include a continuous light source and a modulator. Among them, the continuous light source can emit a continuous optical carrier, and the modulator can modulate the electrical signal onto the continuous optical carrier to obtain an optical signal.

[0107] In yet another example, the optical transmission sub-module 11 may include a transmitter optical subassembly (TOSA). The TOSA can convert an electrical signal into an optical signal OS1 and output it.

[0108] Of course, the optical transmission sub-module 11 can also output the optical signal OS1 through other means respectively, and the embodiments of the present application do not make any limitations.

[0109] For the optical reception sub-module 21, the optical reception sub-module 21 may include a receiver optical subassembly (ROSA). The ROSA can convert an optical signal such as OS4 into an electrical signal.

[0110] Optionally, the multiplexing module 3 may use a laser interferometer to implement the switching of the optical signal path. Of course, the multiplexing module 3 may also be of other types, as long as it can implement the functions of optical signal combining and wavelength division.

[0111] In the embodiments of the present application, the laser interferometer may be a cascaded mach zehnder interferometer (CMZI). Of course, the laser interferometer may also be of other types, and the embodiments of the present application do not make any limitations.

[0112] In some embodiments, such as Figure 3As shown, the multiplexing module 3 may include an optical switch S1 (i.e., the first optical switch), an optical switch S2 (i.e., the second optical switch), CMZI1 (i.e., the first optical interferometer), CMZI2 (i.e., the second optical interferometer), CMZI3 (i.e., the third optical interferometer), CMZI4 (i.e., the fourth optical interferometer), and CMZI5 (i.e., the fifth optical interferometer).

[0113] The first port of the optical switch S1 may be connected to the optical transmitting sub-module 11 for receiving the optical signal OS1. The second port of the optical switch S1 may be connected to the first port of CMZI1, and the third port of the optical switch S1 may be connected to the first port of CMZI2. The second port of CMZI1 may be connected to the fourth port of CMZI4, and the third port of CMZI1 may be connected to the optical interface 41. The second port of CMZI2 may be connected to the optical transmitting sub-module 12 for receiving the optical signal OS2. The third port of CMZI2 may be connected to the first port of CMZI5. The first port of CMZI4 may be connected to the optical receiving sub-module 21 for transmitting the optical signal OS3 to the optical receiving sub-module 21. The second port of CMZI4 may be connected to the optical receiving sub-module 22 for transmitting the optical signal OS4 to the optical receiving sub-module 22. The third port of CMZI4 may be connected to the first port of CMZI3. The second port of CMZI3 may be connected to the second port of CMZI5, and the third port of CMZI3 may be connected to the second port of the optical switch S2. The third port of CMZI5 may be connected to the first port of the optical switch S2, and the third port of the optical switch S2 may be connected to the optical interface 42.

[0114] In one example, as Figure 4 shown, when the optical component 10 is used for CWDM networking and the optical component 10 serves as a transmitting end, the optical switch S1 may transmit the optical signal OS1 (the wavelength may be 1371 nm) output by the optical transmitting sub-module 11 to CMZI2. CMZI2 may combine the optical signal OS1 and the optical signal OS2 (the wavelength may be 1331 nm) output by the optical transmitting sub-module 12, and transmit the combined optical signal OS1 and optical signal OS2 to CMZI5. CMZI5 may transmit the optical signal OS1 and the optical signal OS2 to the optical interface 42 through the optical switch S2.

[0115] In another example, as Figure 5As shown, when the optical component 10 is used for CWDM networking and the optical component 10 serves as the receiving end, the optical interface 42 can transmit the optical signal OS3 (the wavelength can be 1271 nm) and the optical signal OS4 (the wavelength can be 1291 nm) to the CMZI5 through the optical switch S2. The CMZI5 can transmit the optical signal OS3 and the optical signal OS4 to the CMZI4 through the CMZI3. The CMZI4 splits the optical signal OS3 and the optical signal OS4, transmits the split optical signal OS3 to the optical receiving sub-module 22, and transmits the split optical signal OS4 to the optical receiving sub-module 21.

[0116] In another example, as Figure 6 shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as the transmitting end, the optical switch S1 can transmit the optical signal OS1 (the wavelength can be 1371 nm) output by the optical transmitting sub-module 11 to the CMZI1. The CMZI1 can transmit the optical signal OS1 to the optical interface 41 and transmit the optical signal OS1 through the optical interface 41. The CMZI2 can transmit the optical signal OS2 (the wavelength can be 1331 nm) output by the optical transmitting sub-module 12 to the CMZI5. The CMZI5 can transmit the optical signal OS2 to the optical interface 42 through the optical switch S2.

[0117] In another example, as Figure 7 shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as the receiving end, the optical interface 41 can transmit an optical signal OS3-1 (i.e., a third optical signal, the wavelength can be 1271 nm) to the CMZI4 through the CMZI1. The optical interface 42 can transmit another optical signal OS3-2 (i.e., another third optical signal) to the CMZI5 through the optical switch S2. The CMZI5 can transmit the optical signal OS3-2 to the CMZI4 through the CMZI3. The CMZI4 can switch the paths of the optical signal OS3-1 and the optical signal OS3-2, transmit the optical signal OS3-1 to the optical receiving sub-module 21, and transmit the optical signal OS3-2 to the optical receiving sub-module 22.

[0118] In another example, as Figure 8As shown, the optical component 10 can also operate in a loopback mode. The optical switch S1 can transmit the optical signal OS1 output by the optical transmission sub-module 11 to the CMZI2. The CMZI2 can combine the optical signal OS1 and the optical signal OS2 output by the optical transmission sub-module 12, and transmit the combined optical signal OS1 and optical signal OS2 to the CMZI5. The CMZI5 can transmit the optical signal OS1 and the optical signal OS2 to the CMZI4 through the optical switch S2 and the CMZI3. The CMZI4 can split the optical signal OS1 and the optical signal OS2, transmit the split optical signal OS1 to the optical reception sub-module 21, and transmit the split optical signal OS2 to the optical reception sub-module 22. It can be seen that the self-check of the optical component 10 can be realized through the loopback mode, so as to replace the optical component 10 in time.

[0119] Based on Figure 3 , the optical transmission module 1 can further include an optical transmission sub-module 13, the multiple optical reception sub-modules 2 can further include an optical reception sub-module 23, and the multiple optical interfaces 4 can further include an optical interface 43, as Figure 9 shown.

[0120] Furthermore, referring to Figure 9 , the multiplexing module 3 can further include an optical switch S3 (i.e., the third optical switch), a CMZI6 (i.e., the sixth optical interferometer), and a CMZI7 (i.e., the seventh optical interferometer).

[0121] The first end of the optical switch S3 can be connected to the optical transmission sub-module 13 for receiving the optical signal OS5 (i.e., the fifth optical signal). The second port of the optical switch S3 can be connected to the first port of the CMZI7, and the third port of the optical switch S3 can be connected to the second port of the CMZI6. The first port of the CMZI6 can be connected to the third port of the CMZI2, and the third port of the CMZI6 can be connected to the first port of the CMZI5. The second port of the CMZI7 can be connected to the third port of the CMZI3, the third port of the CMZI7 can be connected to the optical interface 43, the fourth port of the CMZI7 can be connected to the second port of the optical switch S2. The fourth port of the CMZI3 can be connected to the optical reception sub-module 23 for transmitting the optical signal OS6 to the optical reception sub-module 23.

[0122] In one example, as Figure 10As shown, when the optical component 10 is used in a CWDM network and the optical component 10 serves as a transmitting end, the optical switch S1 can transmit the optical signal OS1 output by the optical transmitting sub-module 11 to the CMZI2. The CMZI2 can combine the optical signal OS1 and the optical signal OS2 output by the optical transmitting sub-module 12, and transmit the combined optical signal OS1 and optical signal OS2 to the CMZI6. The optical switch S3 can transmit the optical signal OS5 (the wavelength can be 1351 nm) to the CMZI6. The CMZI6 can combine the optical signal OS1, the optical signal OS2, and the optical signal OS5, and transmit the combined optical signal OS1, optical signal OS2, and optical signal OS5 to the CMZI5. The CMZI5 can transmit the optical signal OS1, the optical signal OS2, and the optical signal OS5 to the optical interface 42 through the optical switch S2.

[0123] In another example, as Figure 11 shown, when the optical component 10 is used in a CWDM multiplexing network and the optical component 10 serves as a receiving end, the optical interface 42 can transmit the optical signals OS3, OS4, and OS6 (the wavelength can be 1311 nm) to the CMZI3 through the optical switch S2 and the CMZI5. The CMZI3 can split the optical signals OS3, OS4, and OS6, transmit the split optical signal OS4 to the optical receiving sub-module 23, and transmit the split optical signals OS3 and OS6 to the CMZI4. The CMZI4 can split the optical signals OS3 and OS6, transmit the split optical signal OS3 to the optical receiving sub-module 22, and transmit the split optical signal OS6 to the optical receiving sub-module 21.

[0124] In yet another example, as Figure 12 shown, when the optical component 10 is used in a single-fiber bidirectional network and the optical component 10 serves as a transmitting end, the optical switch S1 can transmit the optical signal OS1 output by the optical transmitting sub-module 11 to the optical interface 41 through the CMZI1. The CMZI2 can transmit the optical signal OS2 output by the optical transmitting sub-module 12 to the optical interface 42 through the CMZI6, CMZI5, and the optical switch S2. The optical switch S3 can transmit the optical signal OS5 output by the optical transmitting sub-module 13 to the optical interface 43 through the CMZI7.

[0125] In yet another example, as Figure 13As shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as a receiving end, the optical interface 41 can transmit an optical signal OS3-1 (i.e., a third optical signal) to CMZI4 through CMZI1. The optical interface 42 can transmit another optical signal OS3-2 (i.e., another third optical signal) to CMZI3 through the optical switch S2 and CMZI5. The optical interface 43 can transmit yet another optical signal OS3-3 (i.e., yet another third optical signal) to CMZI3 through CMZI7. CMZI3 can split the optical signal OS3-2 and the optical signal OS3-3, transmit the optical signal OS3-2 to CMZI4, and transmit the optical signal OS3-3 to the optical receiving sub-module 23. CMZI4 can split the optical signal OS3-1 and the optical signal OS3-2, transmit the optical signal OS3-1 to the optical receiving sub-module 21, and transmit the optical signal OS3-2 to the optical receiving sub-module 22.

[0126] In another example, as Figure 14 shown, the optical component 10 can also operate in a loopback mode. The optical switch S1 can transmit the optical signal OS1 output by the optical transmitting sub-module 11 to CMZI2. CMZI2 can combine the optical signal OS1 and the optical signal OS2 output by the optical transmitting sub-module 12, and transmit the combined optical signal OS1 and optical signal OS2 to CMZI6. The optical switch S3 can transmit the optical signal OS5 output by the optical transmitting sub-module 13 to CMZI6. CMZI6 can transmit the optical signal OS1, the optical signal OS2, and the optical signal OS5 to CMZI3 through CMZI5, the optical switch S2, and CMZI7. CMZI3 can split the optical signal OS1, the optical signal OS2, and the optical signal OS5, transmit the optical signal OS1 and the optical signal OS2 to CMZI4, and transmit the optical signal OS5 to the optical receiving sub-module 23. CMZI4 can split the optical signal OS1 and the optical signal OS2, transmit the split optical signal OS1 to the optical receiving sub-module 21, and transmit the split optical signal OS2 to the optical receiving sub-module 22. It can be seen that the self-check of the optical component 10 can be realized through the loopback mode, so as to replace the optical component 10 in time.

[0127] In some other embodiments, as Figure 15 shown, the multiplexing module 3 can include the optical switch S1, the optical switch S2, CMZI1, CMZI2, CMZI3, and CMZI4.

[0128] Optionally, the first port of the optical switch S1 can be connected to the optical transmitting sub-module 12 for receiving the optical signal OS2. The second port of the optical switch S1 can be connected to the first port of the CMZI2, and the third port of the optical switch S1 can be connected to the second port of the CMZI1. The first port of the CMZI1 can be connected to the optical transmitting sub-module 11 for receiving the optical signal OS1. The third port of the CMZI1 can be connected to the first port of the CMZI4. The second port of the CMZI2 can be connected to the fourth port of the CMZI3, the third port of the CMZI2 can be connected to the optical interface 41, and the fourth port of the CMZI2 can be connected to the second port of the optical switch S2. The first port of the CMZI3 can be connected to the optical receiving sub-module 21 for transmitting the optical signal OS3 to the optical receiving sub-module 21. The second port of the CMZI3 can be connected to the optical receiving sub-module 22 for transmitting the optical signal OS4 to the optical receiving sub-module 22. The third port of the CMZI3 can be connected to the second port of the CMZI4, the third port of the CMZI4 can be connected to the first port of the optical switch S2, and the third port of the optical switch S2 can be connected to the optical interface 42.

[0129] In one example, as Figure 16 shown, when the optical component 10 is used for CWDM networking and the optical component 10 serves as a transmitting end, the optical switch S1 can transmit the optical signal OS2 (the wavelength can be 1351 nm) output by the optical transmitting sub-module 12 to the CMZI1. The CMZI1 can multiplex the optical signal OS2 and the optical signal OS1 (the wavelength can be 1331 nm) output by the optical transmitting sub-module 11, and transmit the multiplexed optical signal OS1 and optical signal OS2 to the CMZI4. The CMZI4 can transmit the optical signal OS1 and optical signal OS2 to the optical interface 42 through the optical switch S2.

[0130] In another example, as Figure 17 shown, when the optical component 10 is used for CWDM networking and the optical component 10 serves as a receiving end, the optical switch S2 can transmit the optical signal OS3 (the wavelength can be 1271 nm) and the optical signal OS4 (the wavelength can be 1291 nm) to the CMZI3 through the CMZI4. The CMZI3 can demultiplex the optical signal OS3 and optical signal OS4, transmit the demultiplexed optical signal OS3 to the optical receiving sub-module 22, and transmit the demultiplexed optical signal OS4 to the optical receiving sub-module 21.

[0131] In yet another example, as Figure 18As shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as a transmitting end, the optical switch S1 can transmit the optical signal OS2 (the wavelength can be 1351 nm) output by the optical transmitting sub-module 12 to the optical interface 41 through the CMZI2. The CMZI1 can transmit the optical signal OS1 (the wavelength can be 1331 nm) output by the optical transmitting sub-module 11 to the optical interface 42 through the CMZI4 and the optical switch S2.

[0132] In another example, as Figure 19 shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as a receiving end, the optical interface 41 can transmit an optical signal OS3-1 (i.e., a third optical signal, the wavelength can be 1271 nm) to the CMZI3 through the CMZI2. The optical interface 42 can transmit another optical signal OS3-2 (i.e., another third optical signal) to the CMZI3 through the optical switch S2 and the CMZI4. The CMZI3 can switch the paths of the optical signal OS3-1 and the optical signal OS3-2, transmit the optical signal OS3-1 to the optical receiving sub-module 21, and transmit the optical signal OS3-2 to the optical receiving sub-module 22.

[0133] In another example, as Figure 20 shown, the optical component 10 can also operate in the loopback mode. The optical switch S1 can transmit the optical signal OS2 (the wavelength can be 1351 nm) output by the optical transmitting sub-module 12 to the CMZI1. The CMZI1 can combine the optical signal OS2 and the optical signal OS1 (the wavelength can be 1331 nm) output by the optical transmitting sub-module 11, and transmit the combined optical signal OS1 and optical signal OS2 to the CMZI4. The CMZI4 can transmit the optical signal OS1 and the optical signal OS2 to the CMZI3 through the optical switch S2 and the CMZI2. The CMZI3 can split the optical signal OS1 and the optical signal OS2, transmit the split optical signal OS1 to the optical receiving sub-module 22, and transmit the split optical signal OS2 to the optical receiving sub-module 21. It can be seen that the self-check of the optical component 10 can be realized through the loopback mode, so as to replace the optical component 10 in time.

[0134] On the basis of Figure 15 , the optical transmitting module 1 can further include an optical transmitting sub-module 13, the multiple optical receiving sub-modules 2 can further include an optical receiving sub-module 23, and the multiple optical interfaces 4 can further include an optical interface 43, as Figure 21 shown.

[0135] Furthermore, referring to Figure 21 , the multiplexing module 3 can further include an optical switch S3, CMZI5, CMZI6, and CMZI7.

[0136] The first port of the optical switch S3 can be connected to the optical transmitting sub-module 13 for receiving the optical signal OS5. The second port of the optical switch S3 can be connected to the first port of the CMZI5, and the third port of the optical switch S3 can be connected to the first port of the CMZI6. The second port of the CMZI5 can be connected to the fourth port of the CMZI7, and the third port of the CMZI5 can be connected to the optical interface 43. The second port of the CMZI6 can be connected to the optical transmitting sub-module 11 for receiving the optical signal OS5. The third port of the CMZI6 can be connected to the first port of the CMZI1. The first port of the CMZI7 can be connected to the optical receiving sub-module 13 for transmitting the optical signal OS6 to the optical receiving sub-module 23. The second port of the CMZI7 can be connected to the optical receiving sub-module 22 for transmitting the optical signal OS4 to the optical receiving sub-module 22. The third port of the CMZI7 can be connected to the second port of the CMZI3.

[0137] Figure 21 The optical interface 10 shown can also be used for CWDM networking or single-fiber bidirectional networking, can also be used as a transmitting end or a receiving end, and can also operate in a switched-back mode. Reference can be made to Figures 11 to 14 , which will not be elaborated in the embodiments of this application.

[0138] In still other embodiments, as Figure 22 shown, the multiplexing module 3 can include optical switches S1, S2, S3, CMZI1, CMZI2, CMZI3, CMZI4, CMZI5, and CMZI6.

[0139] The first port of the optical switch S1 can be connected to the optical transmitting sub-module 11 for receiving the optical signal OS1. The second port of the optical switch S1 can be connected to the first port of the CMZI1, and the third port of the optical switch S1 can be connected to the first port of the CMZI3. The second port of the CMZI1 can be connected to the fourth port of the CMZI6, and the third port of the CMZI1 can be connected to the optical interface 41.

[0140] The first port of the optical switch S3 can be connected to the optical transmitting sub-module 12 for receiving the optical signal OS2. The second port of the optical switch S3 can be connected to the first port of the CMZI2, and the third port of the optical switch S3 can be connected to the second port of the CMZI3. The second port of the CMZI2 can be connected to the fourth port of the CMZI5, the third port of the CMZI2 can be connected to the optical interface 42, and the fourth port of the CMZI2 can be connected to the second port of the optical switch S2. The third port of the CMZI3 can be connected to the first port of the CMZI4, the second port of the CMZI4 can be connected to the third port of the CMZI5, and the third port of the CMZI4 can be connected to the first port of the optical switch S2. The third port of the optical switch S2 can be connected to the optical interface 43. The first port of the CMZI5 can be connected to the optical receiving sub-module 21 for transmitting the optical signal OS3 to the optical receiving sub-module 21. The second port of the CMZI5 can be connected to the second port of the CMZI6. The first port of the CMZI6 can be connected to the optical receiving sub-module 22 for transmitting the optical signal OS4 to the optical receiving sub-module 22.

[0141] In one example, as Figure 23 shown, when the optical component 10 is used for CWDM networking and the optical component 10 is used as a transmitting end, the optical switch S1 can transmit the optical signal OS1 (the wavelength can be 1371 nm) output by the optical transmitting sub-module 11 to the CMZI3. The optical switch S2 can transmit the optical signal OS2 (the wavelength can be 1351 nm) output by the optical transmitting sub-module 12 to the CMZI3. The CMZI3 can multiplex the optical signal OS1 and the optical signal OS2, and transmit the multiplexed optical signal OS1 and optical signal OS2 to the CMZI4. The CMZI4 can transmit the optical signal OS1 and the optical signal OS2 to the optical interface 43 through the optical switch S2.

[0142] In another example, as Figure 24 shown, when the optical component 10 is used for CWDM multiplexing networking and the optical component 10 is used as a receiving end, the optical switch S2 can transmit the optical signal OS3 (the wavelength can be 1291 nm) and the optical signal OS4 (the wavelength can be 1311 nm) to the CMZI5 through the CMZI4. The CMZI5 can demultiplex the optical signal OS3 and the optical signal OS4, transmit the demultiplexed optical signal OS3 to the optical receiving sub-module 21, and transmit the demultiplexed optical signal OS4 to the optical receiving sub-module 22.

[0143] In yet another example, as Figure 25As shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as a transmitting end, the optical switch S1 can transmit the optical signal OS1 (the wavelength can be 1371 nm) output by the optical transmitting sub-module 11 to the optical interface 41 through the CMZI1. The optical switch S2 can transmit the optical signal OS2 (the wavelength can be 1351 nm) output by the optical transmitting sub-module 12 to the optical interface 42 through the CMZI22.

[0144] In another example, as Figure 26 shown, when the optical component 10 is used for single-fiber bidirectional networking and the optical component 10 serves as a receiving end, the optical interface 41 can transmit an optical signal OS3-1 (i.e., a third optical signal, the wavelength can be 1271 nm) to the CMZI6 through the CMZI1, and the CMZI6 can transmit the optical signal OS3-2 to the optical receiving sub-module 22. The optical interface 42 can transmit another optical signal OS3-2 (i.e., another third optical signal) to the CMZI5 through the CMZI2. The CMZI5 can transmit the optical signal OS3-2 to the optical receiving sub-module 21.

[0145] In another example, as Figure 27 shown, the optical component 10 can also operate in the loopback mode. The optical switch S1 can transmit the optical signal OS1 (the wavelength can be 1371 nm) output by the optical transmitting sub-module 11 to the CMZI3. The optical switch S3 can transmit the optical signal OS2 (the wavelength can be 1351 nm) output by the optical transmitting sub-module 12 to the CMZI3. The CMZI3 can combine the optical signal OS1 and the optical signal OS2, and transmit the combined optical signal OS1 and optical signal OS2 to the CMZI4. The CMZI4 can transmit the optical signal OS1 and the optical signal OS2 to the CMZI5 through the optical switch S2 and the CMZI2. The CMZI5 can split the optical signal OS1 and the optical signal OS2, transmit the split optical signal OS1 to the optical receiving sub-module 22 through the CMZI6. The CMZI5 also transmits the split optical signal OS2 to the optical receiving sub-module 21. It can be seen that the self-check of the optical component 10 can be realized through the loopback mode, so as to replace the optical component 10 in time.

[0146] On the basis of Figure 22 , the optical transmitting module 1 can further include an optical transmitting sub-module 13, the multiple optical receiving sub-modules 2 can further include an optical receiving sub-module 23, and the multiple optical interfaces 4 can further include an optical interface 43, as Figure 28 shown.

[0147] Further, referring to Figure 28, the multiplexing module 3 may further include a CMZI7. The first port of the CMZI7 may be connected to the third port of the optical switch S1. The second port of the CMZI7 may be connected to the optical transmitting sub-module 13 for receiving the optical signal OS5. The third port of the CMZI7 may be connected to the first port of the CMZI3.

[0148] Figure 28 The optical interface 10 shown can also be used for CWDM networking or single-fiber bidirectional networking, can also be used as a transmitting end or a receiving end, can also operate in a switched-back mode, and can also refer to Figures 11 to 14 , which will not be elaborated in the embodiments of the present application.

[0149] Of course, in addition to the structures such as Figure 9 , Figure 21 and Figure 28 introduced above, the multiplexing module 3 can also adopt other structures to implement the switching of the optical signal path, which is not limited in the embodiments of the present application.

[0150] The embodiments of the present application also provide a chip, which may include the optical component 10 provided in the above embodiments.

[0151] The embodiments of the present application also provide an active antenna unit (AAU), and the AAU may include a chip. Of course, the AAU may also include other parts, which will not be elaborated in detail and are not limited in the embodiments of the present application.

[0152] The embodiments of the present application also provide a baseband unit (BBU), and the BBU may include a chip. Of course, the BBU may also include other parts, which will not be elaborated in detail and are not limited in the embodiments of the present application.

[0153] The embodiments of the present application also provide a base station, which may include an AAU and a BBU. The AAU may be connected to the BBU.

[0154] Optionally, the AAU and the BBU may be connected by an optical fiber, thereby realizing CWDM networking, single-fiber bidirectional networking, and dual-fiber bidirectional networking.

[0155] The embodiments of the present application also provide a communication system, including a terminal device, a communication network, and a base station. The terminal device is connected to the base station through the communication network.

[0156] As described above, only the specific embodiments of the present application are provided, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An optical component, characterized in that: It includes an optical transmission module, a plurality of optical receiving submodules, a multiplexing module and a plurality of optical interfaces; The optical sending module is used to: output the first optical signal and the second optical signal to the multiplexing module; The multiplexing module is used to: perform path switching on the first optical signal and the second optical signal and transmit them to at least one optical interface among the multiple optical interfaces; Any one of the multiple optical interfaces is used to: output the first optical signal and / or the second optical signal; or to receive the third optical signal and / or the fourth optical signal and transmit it to the multiplexing module; The multiplexing module is further used to: perform path switching on the third optical signal and transmit it to the first optical receiving submodule among the multiple optical receiving submodules, and perform path switching on the fourth optical signal and transmit it to the second optical receiving submodule among the multiple optical receiving submodules.

2. The optical assembly according to claim 1, characterized in that The optical sending module is further used to: output a fifth optical signal to the multiplexing module; The multiplexing module is further used to: perform path switching on the fifth optical signal and transmit the fifth optical signal to at least one optical interface among the multiple optical interfaces; Any of the optical interfaces is further used to: output the fifth optical signal; or to receive the sixth optical signal and transmit it to the multiplexing module; The multiplexing module is further used to: perform path switching on the sixth optical signal and transmit the sixth optical signal to the third optical receiving submodule among the plurality of optical receiving submodules.

3. The optical assembly according to claim 2, characterized in that: The multiplexing module includes a first optical switch, a second optical switch, a first optical interferometer, a second optical interferometer, a third optical interferometer, a fourth optical interferometer and a fifth optical interferometer; The first port of the first optical switch is connected to the first optical sending submodule in the optical sending module for receiving the first optical signal; the second port of the first optical switch is connected to the first port of the first optical interferometer, and the third port of the first optical switch is connected to the first port of the second optical interferometer; the second port of the first optical interferometer is connected to the fourth port of the fourth optical interferometer, and the third port of the first optical interferometer is connected to the first optical interface of the multiple optical interfaces; the second port of the second optical interferometer is connected to the second optical sending submodule in the optical sending module for receiving the second optical signal; the third port of the second optical interferometer is connected to the first port of the fifth optical interferometer; the first port of the fourth optical interferometer is connected to the first optical receiving submodule for transmitting the third optical signal to the first optical receiving submodule; The second port of the fourth optical interferometer is connected to the second optical receiving submodule, and is used to transmit the fourth optical signal to the second optical receiving submodule; The third port of the fourth optical interferometer is connected to the first port of the third optical interferometer; the second port of the third optical interferometer is connected to the second port of the fifth optical interferometer, and the third port of the third optical interferometer is connected to the second port of the second optical switch; the third port of the fifth optical interferometer is connected to the first port of the second optical switch, and the third port of the second optical switch is connected to the second optical interface among the multiple optical interfaces.

4. The optical assembly according to claim 3, characterized in that: The multiplexing module also includes a third optical switch, a sixth optical interferometer and a seventh optical interferometer; The first end of the third optical switch is connected to the third optical sending submodule in the optical sending module for receiving the fifth optical signal; the second port of the third optical switch is connected to the first port of the seventh optical interferometer, and the third port of the third optical switch is connected to the second port of the sixth optical interferometer; the first port of the sixth optical interferometer is connected to the third port of the second optical interferometer, and the third port of the sixth optical interferometer is connected to the first port of the fifth optical interferometer; the second port of the seventh optical interferometer is connected to the third port of the third optical interferometer, the third port of the seventh optical interferometer is connected to the third optical interface among the multiple optical interfaces, and the fourth port of the seventh optical interferometer is connected to the second port of the second optical switch; the fourth port of the third optical interferometer is connected to the third optical receiving submodule for transmitting the sixth optical signal to the third optical receiving submodule.

5. The optical assembly according to claim 2, characterized in that: The multiplexing module includes a first optical switch, a second optical switch, a first optical interferometer, a second optical interferometer, a third optical interferometer and a fourth optical interferometer; The first port of the first optical switch is connected to the second optical sending submodule in the optical sending module for receiving the second optical signal; the second port of the first optical switch is connected to the first port of the second optical interferometer, and the third port of the first optical switch is connected to the second port of the first optical interferometer; the first port of the first optical interferometer is connected to the first optical sending submodule in the optical sending module for receiving the first optical signal; the third port of the first optical interferometer is connected to the first port of the fourth optical interferometer; the second port of the second optical interferometer is connected to the fourth port of the third optical interferometer, the third port of the second optical interferometer is connected to the first optical interface of the multiple optical interfaces, and the fourth port of the second optical interferometer is connected to the second port of the second optical switch; the first port of the third optical interferometer is connected to the first optical receiving submodule for transmitting the third optical signal to the first optical receiving submodule; The second port of the third optical interferometer is connected to the second optical receiving submodule, and is used to transmit the fourth optical signal to the second optical receiving submodule; The third port of the third optical interferometer is connected to the second port of the fourth optical interferometer, the third port of the fourth optical interferometer is connected to the first port of the second optical switch, and the third port of the second optical switch is connected to the second optical interface of the multiple optical interfaces.

6. The optical assembly according to claim 5, characterized in that: The multiplexing module also includes a third optical switch, a fifth optical interferometer, a sixth optical interferometer and a seventh optical interferometer; The first port of the third optical switch is connected to the third optical sending submodule in the optical sending module for receiving the fifth optical signal; the second port of the third optical switch is connected to the first port of the fifth optical interferometer, and the third port of the third optical switch is connected to the first port of the sixth optical interferometer; the second port of the fifth optical interferometer is connected to the fourth port of the seventh optical interferometer, and the third port of the fifth optical interferometer is connected to the third optical interface among the multiple optical interfaces; the second port of the sixth optical interferometer is connected to the first optical sending submodule in the optical sending module for receiving the first optical signal; the third port of the sixth optical interferometer is connected to the first port of the first optical interferometer; the first port of the seventh optical interferometer is connected to the third optical receiving submodule for transmitting the sixth optical signal to the third optical receiving submodule; the second port of the seventh optical interferometer is connected to the second optical receiving submodule for transmitting the fourth optical signal to the second optical receiving submodule; The third port of the seventh optical interferometer is connected to the second port of the third optical interferometer.

7. The optical assembly according to claim 2, characterized in that: The multiplexing module includes a first optical switch, a second optical switch, a third optical switch, a first optical interferometer, a second optical interferometer, a third optical interferometer, a fourth optical interferometer, a fifth optical interferometer and a sixth optical interferometer; The first port of the first optical switch is connected to the first optical sending submodule in the optical sending module for receiving the first optical signal; the second port of the first optical switch is connected to the first port of the first optical interferometer, and the third port of the first optical switch is connected to the first port of the third optical interferometer; the second port of the first optical interferometer is connected to the fourth port of the sixth optical interferometer, and the third port of the first optical interferometer is connected to the first optical interface among the multiple optical interfaces; The first port of the third optical switch is connected to the second optical sending submodule in the optical sending module for receiving the second optical signal; the second port of the third optical switch is connected to the first port of the second optical interferometer, and the third port of the third optical switch is connected to the second port of the third optical interferometer; the second port of the second optical interferometer is connected to the fourth port of the fifth optical interferometer, the third port of the second optical interferometer is connected to the second optical interface among the multiple optical interfaces, and the fourth port of the second optical interferometer is connected to the second port of the second optical switch; the third port of the third optical interferometer is connected to the first port of the fourth optical interferometer, the second port of the fourth optical interferometer is connected to the third port of the fifth optical interferometer, and the third port of the fourth optical interferometer is connected to the first port of the second optical switch; the third port of the second optical switch is connected to the third optical interface among the multiple optical interfaces; The first port of the fifth optical interferometer is connected to the first optical receiving submodule, and is used to transmit the third optical signal to the first optical receiving submodule; The second port of the fifth optical interferometer is connected to the second port of the sixth optical interferometer; the first port of the sixth optical interferometer is connected to the second optical receiving submodule, and is used to transmit the fourth optical signal to the second optical receiving submodule.

8. The optical assembly according to claim 7, characterized in that: The multiplexing module also includes a seventh optical interferometer; The first port of the seventh optical interferometer is connected to the third port of the first optical switch; the second port of the seventh optical interferometer is connected to the third optical sending submodule in the optical sending module for receiving the fifth optical signal; the third port of the seventh optical interferometer is connected to the first port of the third optical interferometer.

9. The optical assembly according to any one of claims 2 to 8, characterized in that: The first wavelength of the first optical signal, the second wavelength of the second optical signal, the fifth wavelength of the fifth optical signal, and the third wavelength of the third optical signal are all different; The first wavelength, the second wavelength, the fifth wavelength and the fourth wavelength of the fourth optical signal are all different; The first wavelength, the second wavelength, the fifth wavelength and a sixth wavelength of the sixth optical signal are all different.

10. A chip, characterized in that: A light assembly comprising the light assembly according to any one of claims 1 to 10.

11. An active antenna unit, characterized in that: Comprising the chip as claimed in claim 10.

12. A baseband unit, characterized in that: Comprising the chip as claimed in claim 10.

13. A base station, characterized in that: It comprises the active antenna unit as claimed in claim 11 and the baseband unit as claimed in claim 12; the active antenna unit and the baseband unit are connected.

14. A communication system, characterized in that: It comprises a terminal device, a communication network and a base station as claimed in claim 13; the terminal device is connected to the base station via the communication network.

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