Optical module, network device, network device system, and optical network system

Abstract

An optical module, a network device, a network device system and an optical network system, relate to the technical field of optical fiber communication. The optical module comprises a first service optical transmitting unit, a detection optical transmitting unit, a first combining unit and an output unit. The first service optical transmitting unit is used for generating a first service optical signal. The detection optical transmitting unit is used for generating a detection optical signal. The first combining unit is used for combining the first service optical signal and the detection optical signal to obtain a first combined optical signal. The first combined optical signal is transmitted to an optical fiber jumper by the output unit. The optical fiber jumper can transmit the combined optical signal with the detection optical signal, avoiding the problem of plugging and unplugging during the detection process of the optical fiber jumper, and simplifying the detection process.

Description

Technical Field

[0001] This application relates to the field of optical fiber communication technology, and in particular to an optical module, network device, network device system and optical network system. Background Technology

[0002] With the rapid development of communication technology, the demand for network bandwidth for services such as 5G communication, data centers, and the Internet of Things is increasing, which accelerates the replacement, relocation, or upgrade of equipment at aggregation / core nodes.

[0003] Network devices are paired with Optical Distribution Frames (ODFs), and numerous fiber optic patch cords connect the network devices and ODFs. Each patch cord connects to both the network device and the ODF at both ends. During network device replacement or relocation, maintenance personnel typically need to manually disconnect the patch cord from the network device and use a red light pen to check the light transmission at that end. They then use the red light to confirm the physical location of the other end of the patch cord connected to the ODF to ensure a correct link connection. However, this testing method relies on manual operation, resulting in low efficiency and high cost. Furthermore, the frequent plugging and unplugging of patch cords during testing can easily lead to damage, loose connections, contamination, weak light, packet loss, or routing protocol alarms. Summary of the Invention

[0004] This application provides an optical module, network device, network device system, and optical network system. By including a detection optical emission unit in the optical module inserted into the network device, and enabling the detection optical signal generated by the detection optical emission unit to be combined with the service optical signal for output, the optical fiber patch cord connected to the optical module can transmit the combined optical signal with the detection optical signal. This avoids the need for plugging and unplugging of the optical fiber patch cord during the detection process and simplifies the detection process.

[0005] In a first aspect, this application provides an optical module for connection to an optical fiber patch cord, characterized in that it comprises: a first service optical transmitting unit for generating a first service optical signal; a detection optical transmitting unit for generating a detection optical signal, wherein the wavelength of the detection optical signal is different from the wavelength of the first service optical signal; a first multiplexing unit for multiplexing the first service optical signal and the detection optical signal to obtain a first multiplexed optical signal; and an output unit for transmitting the first multiplexed optical signal to the optical fiber patch cord.

[0006] The optical module provided in this application includes a first service optical transmitting unit, a detection optical transmitting unit, a first multiplexing unit, and an output unit. The first service optical transmitting unit is used to generate a first service optical signal, the detection optical transmitting unit is used to generate a detection optical signal, the first multiplexing unit is used to combine the first service optical signal and the detection optical signal to obtain a first multiplexed optical signal, and the output unit sends the first multiplexed optical signal to the optical fiber patch cord, so that the optical fiber patch cord can transmit the multiplexed optical signal with the detection optical signal, avoiding the problem of plugging and unplugging during the detection process of the optical fiber patch cord and simplifying the detection process.

[0007] In one possible implementation, the optical module further includes a second service optical transmitting unit and a second multiplexing unit. The second service optical transmitting unit is used to transmit a second service optical signal, the wavelength of which is different from that of the first service optical signal. The second multiplexing unit is used to multiplex the first service optical signal and the second service optical signal to obtain a second multiplexed optical signal, and to transmit the second multiplexed optical signal to the first multiplexing unit. The first multiplexed optical signal is obtained by the first multiplexing unit multiplexing the second multiplexed optical signal and the detection optical signal.

[0008] In this embodiment, by further including a second service optical transmitting unit and a second multiplexing unit in the optical module, the first service optical signal and the second service optical signal are first multiplexed to form a second multiplexed optical signal, and then the second multiplexed optical signal and the detection optical signal are multiplexed at the first multiplexing unit. This helps to ensure the multiplexing effect of the first service optical signal, the second service optical signal and the detection optical signal, avoids mutual interference between the first service optical signal, the second service optical signal and the detection optical signal, and thus ensures the accuracy of the detection results.

[0009] In one possible implementation, the second multiplexing unit is a multiplexer.

[0010] In this embodiment, by making the second multiplexing unit a multiplexer, the second multiplexing unit can combine the first service optical signal and the second service optical signal and transmit them through a single channel, thereby improving the transmission efficiency and reliability of the first service optical signal and the second service optical signal.

[0011] In one possible implementation, the first multiplexing unit includes a filter, the second multiplexed optical signal passes through the filter, and the detection optical signal is reflected at the filter and multiplexed with the second multiplexed optical signal.

[0012] In this embodiment, by including a filter in the first multiplexing unit, the second multiplexed optical signal passes through the filter, and the detection optical signal is reflected at the filter and multiplexed with the second multiplexed optical signal, the optical path of the second multiplexed optical signal and the detection optical signal is adjusted, ensuring that the second multiplexed optical signal and the detection optical signal are multiplexed at the first multiplexing unit.

[0013] In one possible implementation, the optical module includes a circuit board and a beam combining module. The beam combining module, the detection light emitting unit, the first beam combining unit, and the output unit are disposed on the circuit board. The first service light emitting unit, the second service light emitting unit, and the second beam combining unit are disposed on the beam combining module.

[0014] In this embodiment, by integrating the first service optical emitting unit, the second service optical emitting unit, and the second multiplexing unit into the same optical combining module, and by independently setting the detection optical emitting unit for generating the detection optical signal and the first multiplexing unit for processing the detection optical signal on the circuit board, it is beneficial to simplify the control of the detection optical emitting unit and the first multiplexing unit.

[0015] In one possible implementation, the detection light emitting unit is contained within a transistor-outline package.

[0016] In this embodiment, by including the detection light emitting unit inside the transistor package, the installation process of the detection light emitting unit is simplified. At the same time, the transistor package is a coaxial package. The coaxial structure can effectively reduce loss and interference during signal transmission, which helps to ensure that the detection light signal generated by the detection light emitting unit has good reliability and stability during transmission.

[0017] In one possible implementation, the optical module includes a circuit board and a beam combining module, the beam combining module and the output unit are disposed on the circuit board, and the first service optical emission unit, the second service optical emission unit, the detection optical emission unit, the first beam combining unit and the second beam combining unit are disposed on the beam combining module.

[0018] In this embodiment, by integrating the first service optical transmitting unit, the second service optical transmitting unit, the detection optical transmitting unit, the first multiplexing unit, and the second multiplexing unit into the same optical combining module, the integration degree of the first service optical transmitting unit, the second service optical transmitting unit, the detection optical transmitting unit, the first multiplexing unit, and the second multiplexing unit is high, which is beneficial to reduce the size of the optical module and realize the miniaturization of the optical module.

[0019] In one possible implementation, the optical module further includes a driving unit electrically connected to the first service optical transmitting unit. The driving unit is used to amplify the service electrical signal from the network device into which the optical module is inserted, and the first service optical transmitting unit is used to convert the service electrical signal into the first service optical signal.

[0020] In this embodiment, by including a driving unit in the optical module, the service electrical signal is amplified, which facilitates the processing of the service electrical signal by the first service optical transmitting unit.

[0021] Secondly, this application also provides a network device for inserting at least two optical modules as described in any one of the embodiments of the first aspect. The at least two optical modules are spaced apart, and the wavelengths of the service optical signals generated by each service optical transmitting unit included in the at least two optical modules are different. The beneficial effects corresponding to this embodiment and the above embodiments are similar, and will not be repeated here.

[0022] Thirdly, this application also provides a network device system, including a controller, at least two optical modules as described in any one embodiment of the first aspect, and a network device as described in the second aspect. The at least two optical modules are inserted into the network device, and each of the at least two optical modules has one of the detection optical emission units. The network device system includes at least two detection optical emission units, and the controller is used to control the at least two detection optical emission units to generate the detection optical signal. The beneficial effects of this embodiment are similar to those of the above embodiments, and will not be described again in this embodiment.

[0023] In one possible implementation, the controller is used to control the lighting frequency of the detection light signals generated by the at least two detection light emitting units to be different.

[0024] In this embodiment, by using the controller to control the different lighting frequencies of the detection light signals generated by at least two detection light emitting units, the first detection light signal and the second detection light signal can be generated simultaneously and can be distinguished by the naked eye through the difference in lighting frequency. This facilitates the simultaneous detection of the first detection light signal and the second detection light signal, simplifies the detection of the first detection light signal and the second detection light signal, and improves detection efficiency and accuracy.

[0025] In one possible implementation, the controller is used to control the lighting time of the detection light signals generated by the at least two detection light emitting units to be different.

[0026] In this embodiment, by controlling the lighting time of the detection light signals generated by at least two detection light emitting units to be different, the first detection light signal and the second detection light signal are generated independently at different times, thereby realizing the detection of the first detection light signal and the second detection light signal one by one and ensuring detection accuracy.

[0027] Fourthly, this application also provides an optical network system, including a fiber optic distribution frame, at least two fiber optic patch cords, and the network device system described in any embodiment of the third aspect. Each of the at least two fiber optic patch cords has its two ends connected to the fiber optic distribution frame and one of the at least two optical modules, respectively. The at least two fiber optic patch cords and the at least two optical modules are connected in a one-to-one correspondence. The fiber optic distribution frame includes at least two optical receiving modules, and the at least two fiber optic patch cords and the at least two optical receiving modules are connected in a one-to-one correspondence. The beneficial effects of this embodiment are similar to those of the above embodiments, and will not be repeated here.

[0028] Fifthly, this application also provides a network device system, including a network device, a service optical module, and a detection optical module. Both the service optical module and the detection optical module are inserted into the network device. The detection optical module is used to connect to an optical fiber patch cord, and the service optical module is used to generate a service optical signal. The detection optical module includes a detection optical transmitting unit, a multiplexing unit, and an output unit. The detection optical transmitting unit generates a detection optical signal, the wavelength of which is different from the wavelength of the service optical signal. The multiplexing unit combines the service optical signal and the detection optical signal to obtain a multiplexed optical signal. The output unit sends the multiplexed optical signal to the optical fiber patch cord.

[0029] In this embodiment, by inserting both the service optical module and the detection optical module into the network device, the disassembly and replacement of the detection optical module are made more convenient. Furthermore, the detection function can be increased by adding functions to the detection optical module, which is beneficial to the applicability of the detection optical module. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of an equipment relocation scenario;

[0031] Figure 2 This is a system schematic diagram of the optical module provided in the embodiments of this application;

[0032] Figure 3 This is a schematic diagram of an optical module with two multiplexing units provided in an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of the optical path of the second service optical signal and the detection optical signal at the first multiplexing unit provided in the embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the structure of the optical module provided in the embodiments of this application, in which the first beam combining unit and the detection light emission unit are disposed on the beam combining module;

[0035] Figure 6 yes Figure 5A schematic diagram of an example structure of an optical module provided in the illustrated embodiment;

[0036] Figure 7 This is a schematic diagram of the structure of the optical module provided in this application, in which the first multiplexing unit and the detection light emission unit are mounted on a circuit board;

[0037] Figure 8 yes Figure 7 A schematic diagram of an example structure of an optical module provided in the illustrated embodiment;

[0038] Figure 9 This is a schematic diagram of the network device provided in the embodiments of this application;

[0039] Figure 10 This is a system diagram of the network device system provided in the embodiments of this application;

[0040] Figure 11 yes Figure 10 A schematic diagram of the lighting frequency of the network device system provided in the illustrated embodiment.

[0041] Figure 12 This is a schematic diagram of the network device system for detecting the insertion of an optical module into a network device according to an embodiment of this application;

[0042] Figure 13 This is a schematic diagram of a system provided in this application for inserting a detection optical module into a service optical module and a detection optical module of a network device;

[0043] Figure 14 This is a schematic diagram of the optical network system provided in the embodiments of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 100 - Optical module; 200 - Network device; 300 - Network device system; 400 - Optical network system.

[0046] 110 - First optical module; 120 - Second optical module;

[0047] 111-First service optical emission unit, 112-Second service optical emission unit, 12-Detection optical emission unit, 121-First detection optical emission unit, 122-Second detection optical emission unit, 13-First multiplexing unit, 131-Filter, 132-Reflector, 14-Second multiplexing unit, 15-Output unit, 16-Circuit board, 17-Optical combining module, 18-Driver unit;

[0048] 310-Controller, 320-Service optical module, 330-Detection optical module, 331-Detection optical transmission unit, 332-Multiplexing unit, 333-Output unit;

[0049] 410 - Fiber optic patch panel, 411 - First optical receiving module, 412 - Second optical receiving module, 420 - Fiber optic patch cord, 421 - First fiber optic patch cord, 422 - Second fiber optic patch cord. Detailed Implementation

[0050] The embodiments of this application are described below with reference to the accompanying drawings.

[0051] For ease of understanding, the English abbreviations and related technical terms used in the embodiments of this application will be explained and described below.

[0052] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0053] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” 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.

[0054] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0055] Depending on the context, the word "if" as used herein can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0056] It should be understood that the terms "first," "second," etc., used in this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0057] In the description of this application, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] In the description of this application, it should be noted that due to manufacturing or assembly errors, there may be slight angular deviations in the design that should be perpendicular or parallel. For example, a deviation within 15 degrees is also considered perpendicular or parallel as described in this embodiment.

[0059] In this application, the phrase "within a range" implies that both endpoints of the range are included, unless otherwise specified. For example, in the range of 1 to 5, it includes the values ​​1 and 5. In this application, unless otherwise specified, "at least one" means "one or more", and "at least two" means "two or more".

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0061] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as the form in which different components in a circuit structure are connected through physical lines that can transmit signals, such as copper foil or wires on a printed circuit board (PCB). "Connection" and "connected" can both refer to a mechanical or physical connection relationship. For example, A and B being connected or A and B being connected can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or that A and B are in contact with each other and are difficult to separate.

[0062] Fiber optic patch cable: A fiber optic patch cable is formed by processing fiber optic cables and fiber optic connectors through a certain process, fixing the fiber optic cables to both ends of the fiber optic cable, thus forming a fiber optic patch cable with fiber optic connectors at both ends.

[0063] In metropolitan area networks (MANs) and backbone networks, the replacement, relocation, or upgrade of equipment at aggregation / core nodes is accelerated. In these deployment scenarios, network devices are paired with fiber optic distribution frames, and there are numerous fiber optic patch cords between them—up to approximately 500. Please refer to [link / reference]. Figure 1 , Figure 1 A schematic diagram of equipment relocation is provided. The equipment to be relocated, A, has a first fiber optic patch cord, a second fiber optic patch cord, and a third fiber optic patch cord between it and the optical distribution frame (ODF). The first, second, and third fiber optic patch cords are respectively connected to optical modules 1, 2, and 3 of the equipment to be relocated, A. The first fiber optic patch cord has two opposing ends. The connection position between the first fiber optic patch cord and optical module 1 is a, and the connection position between the first fiber optic patch cord and the ODF frame is a'. Similarly, the second fiber optic patch cord has two opposing ends. The connection position between the second fiber optic patch cord and optical module 1 is b, and the connection position between the second fiber optic patch cord and the ODF frame is b'. The third fiber optic patch cord has two opposing ends. The connection position between the third fiber optic patch cord and optical module 1 is c, and the connection position between the second fiber optic patch cord and the ODF frame is c'.

[0064] Depend on Figure 1 It can be seen that optical modules 1, 2, and 3 are spaced apart on the device A to be relocated, so that connection positions a, b, and c have different physical positions on the device A to be relocated. At the same time, connection positions a', b', and c' also have different physical positions on the ODF rack, so as to achieve matching between the first fiber optic patch cord, the second fiber optic patch cord, and the third fiber optic patch cord and the interface of the device A to be relocated and the interface of the ODF rack.

[0065] Depend on Figure 1 It is known that the replacement device A' includes optical module 1', optical module 2', and optical module 3'. When replacing the device A to be relocated with the replacement device A', the end of the first fiber optic patch cord connected to optical module 1 needs to be replaced from connection position a to connection position a'", the end of the second fiber optic patch cord connected to optical module 2 needs to be replaced from connection position b to connection position b'", and the end of the third fiber optic patch cord connected to optical module 3 needs to be replaced from connection position c to connection position c'", in order to achieve device replacement and ensure correct link connection.

[0066] Therefore, during the replacement or relocation of network equipment, it is necessary to confirm the physical location of each fiber optic patch cord's connection to the network equipment and fiber optic patch panel in order to achieve the correct link connection.

[0067] Fiber optic patch cords are typically tested using a fiber breakage detection method. This method requires disconnecting the end of the patch cord connected to the network device and then using a red light pen to check the light transmission at that end. If red light appears at the other end connected to the fiber optic patch panel, the patch cord is considered intact, and the physical location of the connection between the patch cord and the patch panel can be confirmed. However, this method relies on manual operation, resulting in low efficiency and high cost. When different interfaces on network devices have different standards, different specifications of red light pens are required for compatibility testing of different patch cords, further reducing efficiency and accuracy. Furthermore, the frequent plugging and unplugging of the patch cord during testing can easily lead to damage, loose connections, contamination, weak light, packet loss, or routing protocol alarms.

[0068] The embodiments of this application are described below with reference to the accompanying drawings.

[0069] This application provides an optical module 100, please refer to... Figure 2 , Figure 2 A system schematic diagram of an optical module 100 provided in an embodiment of this application is shown. The optical module 100 is used to connect to an optical fiber patch cord 420, so that optical communication can be realized between the optical module 100 and the optical fiber patch cord 420.

[0070] The optical module 100 includes a first service optical transmitting unit 111, a detection optical transmitting unit 12, and a first multiplexing unit 13. The first service optical transmitting unit 111 is used to generate a first service optical signal, the detection optical transmitting unit 12 is used to generate a detection optical signal, and the first multiplexing unit 13 is connected to both the first service optical transmitting unit 111 and the detection optical transmitting unit 12, so that both the first service optical signal and the detection optical signal can be transmitted to the first multiplexing unit 13. The first multiplexing unit 13 is used to combine the first service optical signal and the detection optical signal to obtain a first combined optical signal.

[0071] The optical module 100 also includes an output unit 15, which is connected to both the first multiplexing unit 13 and the fiber optic patch cord 420. The output unit 15 is used to send the first multiplexed optical signal to the fiber optic patch cord 420. Since the first multiplexed optical signal includes a detection optical signal, the fiber optic patch cord 420 can transmit the detection optical signal. The other end of the fiber optic patch cord 420 away from the optical module 100 can detect the detection optical signal, which is beneficial for detecting the physical position of the other end of the fiber optic patch cord 420 away from the optical module 100. At the same time, the transmission of the detection optical signal in the fiber optic patch cord 420 does not require plugging and unplugging the fiber optic patch cord 420, avoiding problems such as damage, loose connection, and dirt caused by plugging and unplugging. It also helps to improve the detection efficiency and accuracy of the fiber optic patch cord 420.

[0072] The wavelength of the detection optical signal is different from that of the first service optical signal to make them clearly distinguishable and avoid interference. Optionally, the first service optical signal is non-visible light, and the wavelength of the detection optical signal is shorter than that of the first service optical signal. Furthermore, the detection optical signal is visible light, allowing the operator to visually identify the detection optical signal at the end of the fiber optic patch cord 420 away from the optical module 100 and confirm the physical location of that end. This simplifies the identification and detection process of the detection optical signal.

[0073] In one embodiment, the wavelength of the first service optical signal includes one of 850nm, 1310nm and 1550nm, and the wavelength of the detection optical signal is 650nm, so that the detection optical signal is red light. The color of the detection optical signal is easier to identify with the naked eye, which helps to simplify the detection process.

[0074] For one possible implementation, please refer to Figure 3 , Figure 3 This illustration shows a system schematic of an optical module 100 with two multiplexing units according to an embodiment of this application. The optical module 100 further includes a second service optical transmitting unit 112 and a second multiplexing unit 14. The second service optical transmitting unit 112 is used to transmit a second service optical signal, the wavelength of which is different from that of the first service optical signal. The second multiplexing unit 14 is connected to both the first service optical transmitting unit 111 and the second service optical transmitting unit 112, so that both the first service optical signal and the second service optical signal can be transmitted to the second multiplexing unit 14. The second multiplexing unit 14 is used to combine the first service optical signal and the second service optical signal to obtain a second multiplexed optical signal.

[0075] The second multiplexing unit 14 is also connected to the first multiplexing unit 13, enabling the second multiplexed optical signal to be transmitted to the first multiplexing unit 13. The first multiplexing unit 13 is used to multiplex the second multiplexed optical signal and the detection optical signal to obtain a first multiplexed optical signal. The first multiplexing unit 13 sends the first multiplexed optical signal, which combines the first service optical signal, the second service optical signal, and the detection optical signal, to the output unit 15, and the output unit 15 sends the first multiplexed optical signal to the fiber optic patch cord 420.

[0076] Understandably, the second multiplexing unit 14 is used to multiplex at least two service optical signals, and the number of service optical transmission units can be set according to actual needs. The first multiplexing unit 13 is used to multiplex service optical signals and detection optical signals. When the optical module 100 includes a single service optical transmission unit, the first multiplexing unit 13 is used to multiplex a single service optical signal and a detection optical signal; when the optical module 100 includes at least two service optical transmission units, the first multiplexing unit 13 is used to multiplex the multiplexed at least two service optical signals and the detection optical signal.

[0077] By first combining the first and second service optical signals at the second multiplexing unit 14 to obtain the second multiplexed optical signal, and then combining the second multiplexed optical signal and the detection optical signal at the first multiplexing unit 13 to obtain the first multiplexed optical signal, the multiplexing effect of the first, second, and detection optical signals is ensured, and mutual interference between them is avoided, thereby ensuring the accuracy of the detection of the fiber optic patch cord 420. If the detection optical signal is directly multiplexed with the first and second service optical signals, since the wavelengths of the detection, first, and second service optical signals are different, the detection optical signal is prone to crosstalk to the wavelengths of the first and second service optical signals. Furthermore, the coupling between the detection optical signal and the first and second service optical signals is more difficult, and the output power of the detection optical signal is easily reduced, which is not conducive to ensuring the accuracy of the detection of the fiber optic patch cord 420.

[0078] The specific structure of the first multiplexing unit 13 and the second multiplexing unit 14 can be selected and set according to actual needs. Optionally, the first multiplexing unit 13 and the second multiplexing unit 14 are multiplexers.

[0079] In one embodiment, please refer to Figure 4 , Figure 4 The diagram illustrates the optical paths of the second service optical signal and the detection optical signal provided in this embodiment at the first multiplexing unit 13. The first multiplexing unit 13 includes a filter 131, which is selective for light, allowing the second multiplexed optical signal to pass through the filter 131. The detection optical signal is reflected at the filter 131, and the optical path of the reflected detection optical signal coincides with the optical path of the second multiplexed optical signal after passing through the filter 131, thus achieving the multiplexing of the detection optical signal and the second multiplexed optical signal. Using the filter 131 to achieve the multiplexing of the detection optical signal and the second multiplexed optical signal simplifies the structural configuration of the first multiplexing unit 13. Furthermore, adjusting the angle of the filter 131 makes it relatively easy to adjust the optical paths of the detection optical signal and the second multiplexed optical signal, simplifying the adjustment process of the first multiplexing unit 13.

[0080] exist Figure 4In the illustrated embodiment, optionally, the first multiplexing unit 13 further includes a reflector 132, which is located on the optical path of the detection light signal and is used to adjust the optical path direction of the detection light signal so that the detection light signal can reach the filter 131 smoothly and be reflected at a suitable angle at the filter 131. This facilitates the relatively simple realization of optical path adjustment of the detection light signal and ensures that the detection light signal and the second multiplexed light signal have a good multiplexing effect.

[0081] In one embodiment, please refer to Figure 3 The second multiplexing unit 14 is a multiplexer, enabling it to combine the first and second service optical signals and transmit them through a single channel, thereby improving the transmission efficiency and reliability of the first and second service optical signals. Simultaneously, the second multiplexing unit 14 can be designed to adjust the first and second service optical signals, such as adjusting their polarization states, to minimize the difference in optical power and optical field energy distribution when the first and second service optical signals are combined, ensuring a good multiplexing effect.

[0082] For one possible implementation, please refer to Figure 5 and Figure 7 , Figure 5 This diagram illustrates the structure of an optical module 100, in which the first multiplexing unit 13 and the detection light emission unit 12 are disposed on a multiplexing module 17, according to an embodiment of this application. Figure 7 This diagram illustrates the structure of an optical module 100 provided in this application, where the first multiplexing unit 13 and the detection light emission unit 12 are mounted on a circuit board 16. The optical module 100 includes a circuit board 16 and a multiplexing module 17, which is mounted on the circuit board 16. The positions of the first service light emission unit 111, the second service light emission unit 112, the detection light emission unit 12, the first multiplexing unit 13, and the second multiplexing unit 14 can be configured according to actual needs. The following will describe the configuration in conjunction with... Figures 5 to 8 The illustrated embodiment provides a detailed description of the configuration of each module in the optical module 100.

[0083] In one embodiment, please refer to Figure 5 The first service optical transmitting unit 111, the second service optical transmitting unit 112, the detection optical transmitting unit 12, the first multiplexing unit 13, and the second multiplexing unit 14 are all disposed on the optical combining module 17, so that the above modules are integrated in the same optical combining module 17. The integration of the first service optical transmitting unit 111, the second service optical transmitting unit 112, the detection optical transmitting unit 12, the first multiplexing unit 13, and the second multiplexing unit 14 is high, which is beneficial to reducing the size of the optical module 100 and realizing the miniaturization of the optical module 100.

[0084] For example, please refer to Figure 6 , Figure 6 It shows Figure 5 The illustrated embodiment provides an example structural diagram of an optical module 100. The optical module 100 includes a printed circuit board assembly (PCBA), a transmitting optical sub-assembly (TOSA), and a receiving optical sub-assembly (ROSA). Both the transmitting and receiving optical sub-assemblies are disposed on the printed circuit board. The transmitting optical assembly includes at least two laser diodes (LDs), a multiplexer (MUX), and a red laser diode (red LD). Each laser diode generates a single service light, and the service light generated by different laser diodes has a different wavelength. The red laser diode generates red light, which serves as the detection light. Please refer to [link to relevant documentation]. Figure 4 and Figure 6 The optical transmitting component also includes a multiplexing structure. At least two service beams generated by at least two laser diodes are first multiplexed at the multiplexer before reaching the multiplexing structure. The red light generated by the red laser diode directly reaches the multiplexing structure. The multiplexing structure is used to multiplex at least two service beams and the red light, and then transmit the multiplexed optical signal (TX).

[0085] exist Figure 6 In the illustrated embodiment, the optical receiving component includes a demultiplexer (DMUX), at least two photodiodes (PDs), and a trans-impedance amplifier (TIA). The demultiplexer is used to receive (Reception, RX) optical signals and split the optical signals into at least two split optical signals. A single photodiode is used to receive a single split optical signal, and the trans-impedance amplifier is used to convert the output current of the photodiode into a voltage.

[0086] exist Figure 6 In the illustrated embodiment, the optical module 100 further includes a driver, a microcontroller unit (MCU), and a clock and data recovery (CDR). The driver, microcontroller, and clock and data recovery are all mounted on a printed circuit board. The driver is used to amplify the service electrical signal, the microcontroller is used to control and monitor various functions of the module, and the clock and data recovery is used to perform electrical domain shaping and clock recovery after the optical signal is converted into an electrical signal.

[0087] In one embodiment, please refer to Figure 7 The first service optical emitting unit 111, the second service optical emitting unit 112, and the second multiplexing unit 14 are all disposed on the optical combining module 17, while the detection optical emitting unit 12 and the first multiplexing unit 13 are disposed on the circuit board 16. This integrates the first service optical emitting unit 111, the second service optical emitting unit 112, and the second multiplexing unit 14 into the same optical combining module 17. The detection optical emitting unit 12, used to generate the detection optical signal, and the first multiplexing unit 13, used to process the detection optical signal, are independently disposed on the circuit board 16, which simplifies the control of the detection optical emitting unit 12 and the first multiplexing unit 13. Optionally, the optical combining module 17, the detection optical emitting unit 12, and the first multiplexing unit 13 are all soldered onto the circuit board 16.

[0088] exist Figure 7 In the illustrated embodiment, optionally, the detection light emitting unit 12 is contained within a transistor outline (TO) package. The leads of the transistor outline package can be shaped and used for surface mounting, which simplifies the installation process of the detection light emitting unit 12. At the same time, the transistor outline package is a coaxial package. The coaxial structure can effectively reduce loss and interference during signal transmission, which helps to ensure that the detection light signal generated by the detection light emitting unit 12 has good reliability and stability during transmission. Moreover, the transistor outline package has a small size and low cost.

[0089] For example, please refer to Figure 8 , Figure 8 It shows Figure 7 The illustrated embodiment provides an example structural diagram of an optical module 100, which includes a printed circuit board (PCBA), a light emitting assembly (TOSA), and a transistor-shaped red laser diode (red TO). Both the light emitting assembly and the transistor-shaped red laser diode are disposed on the printed circuit board. Figure 8 In the embodiment shown, the transistor-shaped red laser diode is directly mounted on the printed circuit board, rather than as... Figure 6 The embodiment shown is configured in a light emitting component. Figure 8 Other structures of the illustrated embodiments and Figure 6 The embodiments shown are similar and will not be described again here.

[0090] Please see Figure 5 and Figure 7Optionally, the optical combining module 17 includes a carrier board soldered onto a circuit board 16. The first service optical emitting unit 111, the second service optical emitting unit 112, and the second multiplexing unit 14 are all disposed on the carrier board, and are electrically connected to the carrier board via conductive structures such as gold wires. The output unit 15 is disposed on the circuit board 16 and soldered onto the circuit board 16.

[0091] For one possible implementation, please refer to Figure 5 , Figure 7 and Figure 9 , Figure 9 A schematic diagram of the structure of a network device 200 provided in an embodiment of this application is shown. An optical module 100 is used to insert into the network device 200, so that the optical module 100 and the network device 200 are electrically connected. The network device 200 is used to generate service electrical signals and send the service electrical signals to the optical module 100.

[0092] The optical module 100 also includes a driving unit 18, which amplifies the service electrical signal from the network device 200. The driving unit 18 is electrically connected to the first service optical transmitting unit 111, and transmits the amplified service electrical signal to the first service optical transmitting unit 111. The first service optical transmitting unit 111 converts the amplified service electrical signal into a first service optical signal. By including the driving unit 18 in the optical module 100, the service electrical signal is amplified, facilitating processing of the service electrical signal by the first service optical transmitting unit 111.

[0093] Optional, please refer to Figure 5 and Figure 7 The driving unit 18 is disposed on the circuit board 16. When the optical module 100 includes a first service optical emitting unit 111 and a second service optical emitting unit 112, the driving unit 18 is electrically connected to both the first service optical emitting unit 111 and the second service optical emitting unit 112.

[0094] This application also provides a network device 200, please refer to... Figure 1 and Figure 9 The network device 200 is used to insert at least two optical modules 100 as described in any of the above embodiments, such that at least two optical modules 100 are electrically connected to the network device 200, and the at least two optical modules 100 are spaced apart, such that the at least two optical modules 100 have different physical positions on the network device 200.

[0095] In one embodiment, please refer to Figure 9 and Figure 10 , Figure 10This diagram illustrates a network device system 300 provided in an embodiment of this application. The network device 200 is used to insert a first optical module 110 and a second optical module 120. The first optical module 110 and the second optical module 120 are spaced apart, meaning that the first optical module 110 and the second optical module 120 have different physical locations on the network device 200. The first optical module 110 includes a first detection light emitting unit 121, which generates a first detection light signal. The second optical module 120 includes a second detection light emitting unit 122, which generates a second detection light signal. The wavelengths of the first detection light signal and the second detection light signal are different, enabling the first detection light signal and the second detection light signal to be distinguished based on the wavelength difference.

[0096] It is understood that the network device 200 in this embodiment is used to insert the optical module 100 in the above embodiment. Therefore, the network device 200 in this embodiment has all the technical effects of the optical module 100 in the above embodiment. Since the technical effects of the optical module 100 have been fully explained in the above embodiment, they will not be repeated here.

[0097] This application also provides a network device system 300, please refer to [link / reference]. Figure 10 The network device system 300 includes a controller 310, a network device 200 as described in the above embodiments, and at least two optical modules 100 as described in the above embodiments. The at least two optical modules 100 are inserted into the network device 200. Each of the at least two optical modules 100 has a single detection optical emission unit 12, such that the network device system 300 includes at least two detection optical emission units 12. The controller 310 is electrically connected to the at least two detection optical emission units 12, and the controller 310 is used to control the at least two detection optical emission units 12 to generate detection optical signals. Optionally, the controller 310 is wirelessly connected to the at least two detection optical emission units 12. The controller 310 includes, but is not limited to, mobile phones, tablets, computers, etc.

[0098] In one embodiment, please refer to Figure 10 The network device 200 is used to insert a first optical module 110 and a second optical module 120. The first optical module 110 includes a first detection optical emission unit 121, and the second optical module 120 includes a second detection optical emission unit 122. The controller 310 is electrically connected to both the first detection optical emission unit 121 and the second detection optical emission unit 122. The controller 310 is used to control the first detection optical emission unit 121 to generate a first detection optical signal, and the controller 310 is also used to control the second detection optical emission unit 122 to generate a second detection optical signal.

[0099] exist Figure 10In the illustrated embodiment, optionally, please refer to [link / reference needed]. Figure 10 and Figure 11 , Figure 11 It shows Figure 10 The schematic diagram of the lighting frequency of the network device system provided in the illustrated embodiment shows that the controller 310 controls the lighting frequencies of the first detection optical signal and the second detection optical signal to be different. For example, the first detection optical signal has a first frequency, and the second detection optical signal has a second frequency. The difference between the first and second frequencies allows the first and second detection optical signals to be generated simultaneously and can be visually distinguished by the difference in lighting frequencies. This facilitates the simultaneous detection of the first and second detection optical signals, simplifies the detection process, and improves detection efficiency and accuracy. For example, the first detection optical signal is constantly lit, and the second detection optical signal is lit at 1-second intervals.

[0100] exist Figure 10 In the illustrated embodiment, optionally, the controller 310 is used to control the lighting time of the first detection light signal and the second detection light signal to be different, so that the first detection light signal and the second detection light signal are generated independently at different times, thereby realizing the detection of the first detection light signal and the second detection light signal one by one and ensuring detection accuracy.

[0101] This application also provides a network device system 300, please refer to [link / reference]. Figure 12 , Figure 12 This illustration shows a schematic diagram of a network device system 300 provided in an embodiment of this application, in which a detection optical module 330 is inserted into a network device 200. The network device system 300 includes a network device 200, a service optical module 320, and a detection optical module 330. Both the service optical module 320 and the detection optical module 330 are inserted into the network device 200, such that both the service optical module 320 and the detection optical module 330 are electrically connected to the network device 200.

[0102] Please see Figure 13 , Figure 13 This illustration shows a system schematic diagram of a detection optical module 330 inserted into a network device 200, comprising a service optical module 320 and a detection optical module 330, according to an embodiment of this application. The service optical module 320 generates a service optical signal. The detection optical module 330 includes a detection optical emission unit 331, a multiplexing unit 332, and an output unit 333. The detection optical emission unit 331 generates a detection optical signal with a wavelength different from that of the service optical signal. The multiplexing unit 332 is connected to the detection optical emission unit 331 and combines the service optical signal and the detection optical signal to obtain a combined optical signal. The output unit 333 is connected to both the fiber optic patch cord 420 and the multiplexing unit 332 and is used to send the combined optical signal to the fiber optic patch cord 420.

[0103] By inserting both the service optical module 320 and the detection optical module 330 into the network device 200, the removal and replacement of the detection optical module 330 becomes more convenient. Furthermore, the detection function can be increased by adding functions to the detection optical module 330, which is beneficial to the applicability of the detection optical module 330.

[0104] Optionally, the number of service optical modules 320 is at least two, the number of detection optical modules 330 is at least two, the at least two service optical modules 320 are set at intervals, the at least two detection optical modules 330 and the at least two service optical modules 320 are set in a one-to-one correspondence, and the service optical signals generated by different service optical modules 320 are different.

[0105] This application also provides an optical network system 400, please refer to [link / reference]. Figure 14 , Figure 14 The diagram shows a schematic of an optical network system 400 provided in an embodiment of this application. The optical network system 400 includes an optical fiber distribution frame 410, at least two optical fiber patch cords 420, and the network equipment system 300 described in the above embodiment. The optical network system 400 includes, but is not limited to, metropolitan area networks, backbone networks, data communication networks, and AI cluster deployments.

[0106] Please see Figure 14 The fiber optic patch panel 410 includes a first optical receiving module 411 and a second optical receiving module 412. The fiber optic patch cord 420 includes a first fiber optic patch cord 421 and a second fiber optic patch cord 422. The two ends of the first fiber optic patch cord 421 are connected to the first optical module 110 and the first optical receiving module 411, respectively. The two ends of the second fiber optic patch cord 422 are connected to the second optical module 120 and the second optical receiving module 412, respectively. The first optical module 110 and the second optical module 120 are both inserted into the network device 200, so that the first fiber optic patch cord 421 and the second fiber optic patch cord 422 realize information transmission between the network device 200 and the fiber optic patch panel 410.

[0107] The first optical module 110 and the second optical module 120 are spaced apart on the network device 200, so that the first optical module 110 and the second optical module 120 have different physical positions on the network device 200. The first optical receiving module 411 and the second optical receiving module 412 are spaced apart on the fiber optic distribution frame 410, so that the first optical receiving module 411 and the second optical receiving module 412 have different physical positions on the fiber optic distribution frame 410.

[0108] When detecting the physical position of the connection between the first fiber optic patch cord 421 and the fiber optic distribution frame 410, it is only necessary to control the first optical module 110 to emit a first multiplexed optical signal. The first multiplexed optical signal includes a first service optical signal and a detection optical signal, so that the first service optical signal and the detection optical signal are transmitted simultaneously at the first fiber optic patch cord 421 and can reach the connection between the first fiber optic patch cord 421 and the first optical receiving module 411. Detecting the detection optical signal on the fiber optic distribution frame 410 side can thus detect the continuity of the first fiber optic patch cord 421 and the physical position of the connection between the first fiber optic patch cord 421 and the fiber optic distribution frame 410. For example, when detecting the red light signal, the first optical fiber patch cord 421 is detected, the first optical module 110 is controlled to emit the first combined optical signal, and the presence of red light is observed on one side of the optical fiber distribution frame 410. This allows the detection of the continuity of the first optical fiber patch cord 421. At the same time, the specific location of the red light is observed on one side of the optical fiber distribution frame 410, which allows the determination of the physical location of the first optical fiber patch cord 421 connected to the end of the optical fiber distribution frame 410.

[0109] It is understood that the optical network system 400 in this embodiment includes the optical module 100 in the above embodiments. Therefore, the optical network system 400 in this embodiment has all the technical effects of the optical module 100 in the above embodiments. Since the technical effects of the optical module 100 have been fully explained in the above embodiments, they will not be repeated here.

[0110] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An optical module for connecting to an optical fiber patch cord, characterized in that, include: The first service optical transmitting unit is used to generate the first service optical signal; A detection light emitting unit is used to generate a detection light signal, the wavelength of which is different from the wavelength of the first service light signal; The first multiplexing unit is used to combine the first service optical signal and the detection optical signal to obtain a first multiplexed optical signal; The output unit is used to send the first combined optical signal to the optical fiber patch cord.

2. The optical module according to claim 1, characterized in that, The optical module also includes a second service optical transmission unit and a second multiplexing unit. The second service optical transmitting unit is used to transmit a second service optical signal, the wavelength of which is different from that of the first service optical signal; The second multiplexing unit is used to multiplex the first service optical signal and the second service optical signal to obtain a second multiplexed optical signal, and to send the second multiplexed optical signal to the first multiplexing unit; The first combined optical signal is obtained by the first combined optical unit combining the second combined optical signal and the detection optical signal.

3. The optical module according to claim 2, characterized in that, The second multiplexing unit is a multiplexer.

4. The optical module according to claim 2 or 3, characterized in that, The first multiplexing unit includes a filter, the second multiplexed optical signal passes through the filter, and the detection optical signal is reflected at the filter and multiplexed with the second multiplexed optical signal.

5. The optical module according to any one of claims 2 to 4, characterized in that, The optical module includes a circuit board and a beam combining module. The beam combining module, the detection light emitting unit, the first beam combining unit and the output unit are disposed on the circuit board. The first service light emitting unit, the second service light emitting unit and the second beam combining unit are disposed on the beam combining module.

6. The optical module according to claim 5, characterized in that, The detection light emission unit is contained within a transistor-outer package.

7. The optical module according to any one of claims 2 to 4, characterized in that, The optical module includes a circuit board and a beam combining module. The beam combining module and the output unit are disposed on the circuit board. The first service optical emission unit, the second service optical emission unit, the detection optical emission unit, the first beam combining unit and the second beam combining unit are disposed on the beam combining module.

8. The optical module according to any one of claims 1 to 7, characterized in that, The optical module further includes a driving unit, which is electrically connected to the first service optical transmitting unit. The driving unit is used to amplify the service electrical signal from the network device into which the optical module is inserted, and the first service optical transmitting unit is used to convert the service electrical signal into the first service optical signal.

9. A network device, characterized in that, The network device is used to insert at least two optical modules as described in any one of claims 1 to 8, wherein the at least two optical modules are spaced apart, and the wavelengths of the service optical signals generated by each service optical transmitting unit included in the at least two optical modules are different.

10. A network device system, characterized in that, The system includes a controller, at least two optical modules as described in any one of claims 1 to 8, and a network device as described in claim 9, wherein the at least two optical modules are inserted into the network device, each of the at least two optical modules has one of the detection optical emission units, the network device system includes at least two detection optical emission units, and the controller is used to control the at least two detection optical emission units to generate the detection optical signal.

11. The network device system according to claim 10, characterized in that, The controller is used to control the lighting frequency of the detection light signals generated by the at least two detection light emitting units to be different.

12. The network device system according to claim 10 or 11, characterized in that, The controller is used to control the lighting time of the detection light signals generated by the at least two detection light emitting units to be different.

13. An optical network system, characterized in that, The system includes a fiber optic distribution frame, at least two fiber optic patch cords, and a network device system as described in any one of claims 10 to 12. Each of the at least two fiber optic patch cords has its two ends connected to the fiber optic distribution frame and one of the at least two optical modules, respectively. The at least two fiber optic patch cords and the at least two optical modules are connected in a one-to-one correspondence. The fiber optic distribution frame includes at least two optical receiving modules, and the at least two fiber optic patch cords and the at least two optical receiving modules are connected in a one-to-one correspondence.

14. A network device system, characterized in that, The system includes a network device, a service optical module, and a detection optical module. Both the service optical module and the detection optical module are inserted into the network device. The detection optical module is used to connect to an optical fiber patch cord. The service optical module is used to generate service optical signals; The detection optical module includes a detection optical emitting unit, a multiplexing unit, and an output unit. The detection optical emitting unit is used to generate a detection optical signal, the wavelength of which is different from that of the service optical signal. The multiplexing unit is used to combine the service optical signal and the detection optical signal to obtain a multiplexed optical signal. The output unit is used to send the multiplexed optical signal to the fiber optic patch cord.

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