Pluggable optical channel monitor

Abstract

A plug-in optical channel monitor is suitable for being plugged in a control system. The plug-in type optical channel monitor comprises a shell, an optical signal transmission device, an optical signal monitoring device and a push-pull device. The optical signal transmission device is arranged in the shell and at least used for receiving optical signals. And the optical signal monitoring device is arranged in the shell, is connected with the optical signal transmission device and is used for monitoring the optical signal. The optical signal monitoring device comprises an inserting part which protrudes out of the shell and is used for being inserted into the control system. The push-pull device is arranged on the shell, protrudes out of one end, opposite to the insertion part, of the shell, and is used for pushing the shell to insert the insertion part into the control system or pulling the shell to pull the insertion part out of the control system. Therefore, the disassembly and assembly operation convenience of the plug-in type optical channel monitor can be improved, so that the plug-in type optical channel monitor can be conveniently maintained or replaced subsequently.

Description

Technical Field

[0001] The invention relates to an optical channel monitor, in particular to a plug-in optical channel monitor. Background Art

[0002] The Optical Channel Monitor (OCM) is used to monitor the performance of the optical channel to monitor information such as power, frequency, wavelength, and optical signal-to-noise ratio (OSNR). The OCM can provide the information obtained from the monitoring to the control system so that the control system can optimize the optical channel based on the received information.

[0003] When the existing optical channel monitor is set on the circuit board of the control system, the optical channel monitor will be shielded and not exposed, and cannot provide the user with the function of plugging and unplugging. Therefore, the optical channel monitor is very inconvenient to disassemble and assemble, which affects the convenience of subsequent maintenance or replacement of the optical channel monitor.

[0004] In addition, the components inside the existing optical channel monitor are large in size, resulting in the overall size and weight of the optical channel monitor being large, and therefore, the design requirements for miniaturization cannot be met. Summary of the invention

[0005] An object of the present invention is to provide a pluggable optical channel monitor that can overcome at least one disadvantage of the background art.

[0006] The purpose of the present invention and the background technical problem to be solved are achieved by adopting the following technical scheme. The plug-in optical channel monitor proposed by the present invention is suitable for being plugged into a control system.

[0007] The pluggable optical channel monitor includes a housing, an optical signal transmission device, an optical signal monitoring device, and a push-pull device. The optical signal transmission device is arranged in the housing and is at least used to receive optical signals. The optical signal monitoring device is arranged in the housing and connected to the optical signal transmission device to monitor the optical signals. The optical signal monitoring device includes a plug-in portion protruding from the housing for being plugged into the control system. The push-pull device is arranged in the housing and protrudes from an end of the housing opposite to the plug-in portion, and is used to push the housing to plug the plug-in portion into the control system or pull the housing to unplug the plug-in portion from the control system.

[0008] The pluggable optical channel monitor of the present invention comprises an optical signal monitoring device which is connected to the optical signal transmission device. The optical signal monitoring module is a photonic integrated circuit based on silicon photonic technology and has the plug-in portion.

[0009] In the plug-in optical channel monitor of the present invention, the optical signal monitoring module is configured to obtain monitoring information from the optical signal and output the monitoring information to the control system through the plug-in part. The optical signal monitoring module is also configured to receive configuration information output by the control system through the plug-in part.

[0010] The pluggable optical channel monitor of the present invention, the optical signal monitoring device includes an optical signal monitoring module connected to the optical signal transmission device, and a control module stacked on the optical signal monitoring module and electrically connected to the optical signal monitoring module, the optical signal monitoring module is a photonic integrated circuit based on silicon photonic technology, and the control module has the plug-in part.

[0011] In the plug-in optical channel monitor of the present invention, the optical signal monitoring module is configured to obtain monitoring information from the optical signal and transmit the monitoring information to the control module, so that the control module can output the monitoring information to the control system through the plug-in part, and the control module is configured to receive configuration information output by the control system through the plug-in part and transmit the configuration information to the optical signal monitoring module.

[0012] In the pluggable optical channel monitor of the present invention, the optical signal monitoring module has a first connector, and the control module has a second connector electrically connected to the first connector.

[0013] The pluggable optical channel monitor of the present invention, the optical signal transmission device includes an optical signal receiving component, an optical signal output component, and an optical splitter, the optical signal receiving component is used to receive the optical signal, the optical splitter is connected between the optical signal receiving component, the optical signal output component and the optical signal monitoring device, and is used to distribute the optical signal according to a predetermined ratio and output it to the optical signal monitoring device and the optical signal output component.

[0014] The plug-in optical channel monitor of the present invention comprises a shell including a plug-in end adjacent to the plug-in portion and a docking end opposite to the plug-in end, and the shell is formed with two docking grooves recessed from the docking end toward the plug-in end, and a portion of the optical signal receiving component and a portion of the optical signal output component are respectively accommodated in the docking grooves.

[0015] The pluggable optical channel monitor of the present invention has a shell including a plug-in end and a docking end opposite to the plug-in end and adjacent to the optical signal transmission device. The shell is formed with a receiving groove recessed from the plug-in end toward the docking end, and the plug-in portion is accommodated in the receiving groove.

[0016] The pluggable optical channel monitor of the present invention, the push-pull device includes two locking springs and a push-pull ring, the locking springs can be slidably connected to the housing to be locked to the control system, the push-pull ring is connected to the locking springs to push and pull the locking springs to lock them to the control system or unlock them.

[0017] In the pluggable optical channel monitor of the present invention, each of the locking springs has a sliding sheet body slidably connected to the housing, and a latch sheet body, the sliding sheet body has an end, and the latch sheet body extends from the end and is bent to latch on the control system.

[0018] The plug-in optical channel monitor of the present invention has two limit grooves formed on the shell, and the shell includes two stop end faces respectively located at one end of the limit grooves, and each of the locking spring pieces has a protruding sheet body that is slidably connected to the corresponding limit groove, and the protruding sheet body is used to stop at the corresponding stop end face to limit the sliding stroke of the locking spring piece when it is pulled by the push-pull ring.

[0019] In the pluggable optical channel monitor of the present invention, the push-pull device further comprises two elastic elements, each of which is arranged between the housing and the corresponding locking spring piece to apply elastic force to the corresponding locking spring piece in the direction of the plug-in portion.

[0020] The beneficial effect of the present invention is that the push-pull device provides the user with the function of pushing and pulling the plug-in optical channel monitor, which can improve the convenience of the disassembly and assembly operation of the plug-in optical channel monitor, so as to facilitate the subsequent maintenance or replacement of the plug-in optical channel monitor. Because the optical signal monitoring module is a photonic integrated circuit based on silicon photonic technology, it can achieve the effects of high integration and miniaturization. Thereby, the overall size and weight of the plug-in optical channel monitor are small and light, and the miniaturization design requirements can be met. In addition, the appearance specifications of the plug-in optical channel monitor can be designed to be the same as the appearance specifications of the existing optical module, so that the plug-in optical channel monitor can be used in the same occasions as the existing optical module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional exploded view of a first embodiment of a pluggable optical channel monitor and a control system of the present invention;

[0022] Figure 2 is a perspective exploded view of the first embodiment, illustrating the assembly relationship between a housing, an optical signal monitoring device, an optical signal transmission device, and a push-pull device;

[0023] Figure 3 is a three-dimensional exploded view of the first embodiment viewed from another perspective;

[0024] Figure 4 is along Figure 1 A cross-sectional view taken along the IV-IV line in FIG.

[0025] Figure 5 is along Figure 1 A cross-sectional view taken along the V-V line in FIG.

[0026] Figure 6 is an incomplete bottom view of the first embodiment, in which a cover of the housing is omitted;

[0027] Figure 7 is a block diagram of the first embodiment;

[0028] Figure 8 is an incomplete cross-sectional view of the first embodiment;

[0029] Fig. 9 is an incomplete cross-sectional view of the first embodiment and the control system, illustrating that the plug-in optical channel monitor is plugged into a slot of the control system;

[0030] Fig.10 is similar to Fig. 9 An incomplete cross-sectional view of

[0031] Fig.11 is similar to Figure 8 a fragmentary cross-sectional view of

[0032] Fig.12 It is a three-dimensional exploded view of the second embodiment of the pluggable optical channel monitor of the present invention. DETAILED DESCRIPTION

[0033] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0034] Before the present invention is described in detail, it should be noted that similar elements are denoted by the same reference numerals in the following description.

[0035] See also Figure 1 , is a first embodiment of the pluggable optical channel monitor 200 of the present invention, which is suitable for being plugged into a control system 100. The control system 100 is taken as an example of a switch but is not limited thereto.

[0036] For the convenience of subsequent description, a front-to-back direction X, a left-to-right direction Y perpendicular to the front-to-back direction X, and an up-down direction Z perpendicular to the front-to-back direction X and the left-to-right direction Y are defined as the control system 100 . Figure 1 In the front-to-back direction X, the direction indicated by the arrow is forward, and the opposite direction is backward. Figure 1 The left and right directions Y in the figure are the direction pointed by the arrow as left and the opposite direction as right. Figure 1 The up and down directions Z in the figure are the direction indicated by the arrow as up, and the opposite direction as down.

[0037] The control system 100 includes a main board 11 (eg Figure 7 1 ), and a plurality of connector components 12 arranged at intervals on the main board 11. Each connector component 12 includes a socket connector (not shown) arranged on the main board 11, and a shielding cover 121 arranged on the main board 11 and covering the socket connector. The shielding cover 121 forms a slot 122 for plugging the plug-in optical channel monitor 200. The shielding cover 121 has two springs 123 (as shown in the figure) spaced apart along the left-right direction Y. Fig. 9 shown).

[0038] The external specifications of the pluggable optical channel monitor 200 are the same as those of the existing optical module, and are used to be plugged into the slot 122 of the corresponding connector assembly 12 of the control system 100. In the first embodiment, the external specifications of the pluggable optical channel monitor 200 are, for example, the same as those of the QSFP optical module, but not limited thereto. The external specifications of the pluggable optical channel monitor 200 can also be designed to be the same as those of other pluggable optical modules such as QSFP-DD, QSFP28, microQSFP, OSFP, SFP, XFP, CFP or CXP according to requirements.

[0039] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The plug-in optical channel monitor 200 includes a housing 2, an optical signal monitoring device 3, an optical signal transmission device 4, and a push-pull device 5. The housing 2 is in the shape of a long shell and its length extends along the front-to-back direction X. The housing 2 includes a shell 21 and a cover 22. The shell 21 has a plug-in end 210 facing backward, a docking end 211 opposite to the plug-in end 210 and facing forward, and two side walls 212 spaced apart along the left-right direction Y. The housing 2 is plugged into the corresponding slot 122 through the plug-in end 210. Each side wall 212 is formed with a receiving groove 213 adjacent to the docking end 211 and extending along the front-to-back direction X, and a connecting groove 214 connected to the bottom end of the receiving groove 213 and extending along the up-down direction Z. The cover 22 covers the bottom of the housing 21 and is locked to the housing 21 by screws (not shown). The cover body 22 has two side walls 220 spaced apart along the left-right direction Y and respectively connected to the side wall 212 . Each side wall 220 is formed with a limiting groove 221 extending along the front-back direction X. Each side wall 220 has a stop end surface 222 located at the front end of the limiting groove 221 .

[0040] The housing 21 and the cover 22 define together a receiving space 23, an opening 24 connected to the rear end of the receiving space 23, and two mounting holes 25 connected to the front end of the receiving space 23 and spaced apart along the left-right direction Y. Figure 4The invention also includes a receiving groove 26 which is recessed from the plug end 210 toward the docking end 211 and connected to the opening 24, two docking grooves 27 which are recessed from the docking end 211 toward the plug end 210 and respectively connected to the mounting holes 25, and two side guide grooves 28 which are spaced apart along the left-right direction Y and are respectively located on the left and right sides of the accommodation space 23. Figure 1 Only one of them is shown). The receiving groove 26 is used to receive the socket connector of the corresponding connector assembly 12. Each docking groove 27 is used for docking with an optical fiber connector (not shown). Each side guide groove 28 is defined by a corresponding side wall 212 and a corresponding side wall 220 connected to each other. Each side guide groove 28 is connected to the receiving groove 213, the connecting groove 214 and the limiting groove 221.

[0041] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 , the optical signal monitoring device 3 is arranged in the accommodating space 23 of the housing 2 and includes an optical signal monitoring module 31 and a control module 32. The optical signal monitoring module 31 is a photonic integrated circuit (PIC) based on silicon photonic technology. In this way, the optical signal monitoring module 31 can achieve the effect of high integration and miniaturization. The optical signal monitoring module 31 has a circuit board 310, a microcontroller (MCU) 311, an optical fiber 312, a first connector 313, and a plurality of photonic devices 314. The circuit board 310 is fixed to the shell 21 of the housing 2 by a plurality of screws 33. The microcontroller 311 is, for example, arranged on the bottom surface of the circuit board 310. The optical fiber 312 is electrically connected to the circuit board 310 to receive the optical signal. The first connector 313 is arranged on the bottom surface of the circuit board 310. The photonic device 314 is integrated on the bottom surface of the circuit board 310 and the top surface of the circuit board 310. The photonic device 314 can be, for example, divided into optical devices and optoelectronic devices having different functions. The microcontroller 311 cooperates with the photonic device 314 to obtain monitoring information from the optical signal received by the optical fiber 312 .

[0042] The control module 32 is stacked below the optical signal monitoring module 31 and has a circuit board 320, a microcontroller 321, and a second connector 322. The circuit board 320 is located below the circuit board 310 and is fixed to the housing 21 of the housing 2 by a screw 34. The circuit board 320 is inserted into the opening 24 and has a plug-in portion 323 protruding from the opening 24 and received in the receiving groove 26. The plug-in portion 323 is used to plug into the corresponding connector component 12 (such as Figure 1The microcontroller 321 is, for example, disposed on the bottom surface of the circuit board 320. The second connector 322 is disposed on the top surface of the circuit board 320 and is electrically connected to the first connector 313 of the optical signal monitoring module 31, thereby enabling the control module 32 to be electrically connected to the optical signal monitoring module 31 for information transmission.

[0043] See also Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 The optical signal transmission device 4 includes an optical signal receiving component 41, an optical signal output component 42, and an optical splitter 43. The optical signal receiving component 41 has an optical fiber connector 410 and an optical fiber 411. The optical fiber connector 410 is installed in the corresponding mounting hole 25 of the housing 2 and is adjacent to the docking end 211. A portion of the optical fiber connector 410 is accommodated in the corresponding docking groove 27 for docking with the corresponding optical fiber connector. The optical fiber connector 410 is an LC / UPC type optical fiber connector as an example, but is not limited to this. The optical fiber 411 is inserted into the optical fiber connector 410 and protrudes out of the rear end of the optical fiber connector 410. The optical fiber 411 of the optical signal receiving component 41 is used to receive an optical signal of a main optical path input by the corresponding optical fiber connector.

[0044] The structure of the optical signal output component 42 is the same as that of the optical signal receiving component 41. The optical signal output component 42 has an optical fiber connector 420 and an optical fiber 421. The optical fiber connector 420 is installed in the corresponding mounting hole 25 of the housing 2 and is adjacent to the docking end 211. A portion of the optical fiber connector 420 is accommodated in the corresponding docking groove 27 for docking with the corresponding optical fiber connector. The optical fiber connector 420 is an LC / UPC type optical fiber connector as an example, but is not limited thereto. The optical fiber 421 is inserted into the optical fiber connector 420 and protrudes out of the rear end of the optical fiber connector 420.

[0045] The optical splitter 43 is a one-to-two optical splitter as an example and has an input optical fiber 430, a first output optical fiber 431, and a second output optical fiber 432. One end of the input optical fiber 430 is connected to the optical fiber 411 of the optical signal receiving component 41 to receive the optical signal output by the optical fiber 411. The two ends of the first output optical fiber 431 are respectively connected to the other end of the input optical fiber 430 and the optical fiber 312 of the optical signal monitoring module 31. The two ends of the second output optical fiber 432 are respectively connected to the other end of the input optical fiber 430 and the optical fiber 421 of the optical signal output component 42. The optical splitter 43 is connected between the optical signal receiving component 41, the optical signal output component 42, and the optical signal monitoring module 31 to distribute the optical signal received by the input optical fiber 430 according to a predetermined ratio and output it to the optical signal monitoring module 31 and the optical signal output component 42 through the first output optical fiber 431 and the second output optical fiber 432, so that the optical signal monitoring module 31 can monitor at least a part of the optical signal.

[0046] In the first embodiment, the optical splitter 43 is configured to output 5% of the optical signal received by the input optical fiber 430 to the optical signal monitoring module 31 through the first output optical fiber 431, and output 95% of the optical signal to the optical signal output component 42 through the second output optical fiber 432. In this way, a small part of the optical signal can be monitored by the optical signal monitoring module 31, and most of the optical signal can be sent back to the main optical path through the optical signal output component 42 and the corresponding optical fiber connector connected. It should be noted that the aforementioned predetermined proportions of 5% and 95% can be adjusted and changed according to needs, and are not limited to 5% and 95%.

[0047] See also Figure 1 , Figure 5 , Figure 6 and Figure 7 The optical signal monitoring module 31 is configured to obtain monitoring information such as power, frequency, wavelength and optical signal-to-noise ratio from a small portion of the optical signal received at the first output optical fiber 431 and transmit the monitoring information to the control module 32, so that the control module 32 can output the monitoring information to the corresponding connector assembly 12 of the control system 100 through the plug-in portion 323, and then transmit it to the main board 11 through the corresponding connector assembly 12. The control module 32 is configured to receive configuration information such as alarm, reset and loss threshold output by the main board 11 of the control system 100 to the corresponding connector assembly 12 through the plug-in portion 323, and transmit the configuration information to the optical signal monitoring module 31.

[0048] See also Figure 1 , Figure 2 , Figure 3 and Figure 8The push-pull device 5 is disposed on the housing 2 and partially protrudes from the docking end 211 of the housing 2, and is used to push the housing 2 to insert the plug-in portion 323 into the slot 122 of the corresponding connector assembly 12 of the control system 100 or to remove the plug-in portion 323 from the slot 122 of the corresponding connector assembly 12 of the control system 100. The push-pull device 5 includes two locking springs 51, a push-pull ring 52, and two elastic elements 53. Each locking spring 51 can be slidably connected to the housing 2 to be locked to the corresponding connector assembly 12. Each locking spring 51 has a sliding sheet 510, a latch sheet 511, a protruding sheet 512, and a bent sheet 513. The sliding sheet 510 is slidably connected to the corresponding side guide groove 28. The sliding sheet 510 is elongated and its length extends along the front-to-back direction X and has a rearward end 514. The latching plate 511 is bent outward and backward from the end 514 of the sliding plate 510 to extend into a curved shape for latching with the corresponding spring plate 123 (such as Fig. 9 221). The protruding sheet 512 protrudes downward from the bottom end of the sliding sheet 510 and slides in the corresponding limiting groove 221. The protruding sheet 512 is used to stop at the stop end surface 222 to limit the forward sliding stroke of the locking spring 51. The bent sheet 513 is bent inwardly and extends from the sliding sheet 510. The bent sheet 513 penetrates into the corresponding receiving groove 213 through the corresponding connecting groove 214 and can slide in the receiving groove 213.

[0049] The push-pull ring 52 is connected to the front end of the sliding sheet body 510 of the locking spring sheet 51 and partially protrudes out of the docking end 211 of the housing 2, and is used to push and pull the locking spring sheet 51 to lock it to the corresponding connector assembly 12 or unlock it. In the first embodiment, the push-pull ring 52 is fixedly connected to the front end of the sliding sheet body 510 of the locking spring sheet 51 as an example for explanation, but the connection method is not limited to this. In another embodiment of the first embodiment, the push-pull ring 52 can also be rotatably pivoted to the sliding sheet body 510 of the locking spring sheet 51.

[0050] See also Figure 2 , Figure 3 and Fig. 9 Each elastic element 53 is a compression spring disposed in the corresponding receiving groove 213. The two ends of each elastic element 53 are respectively in contact with the corresponding side wall 212 and the bent sheet 513 of the corresponding locking spring 51, so as to apply elastic force to the corresponding locking spring 51 in the direction of the plug-in portion 323. In this way, each locking spring 51 can be positioned as follows: Fig. 9 An initial position is shown.

[0051] See also Figure 1 and Fig. 9When the plug-in optical channel monitor 200 is to be plugged into the slot 122 of the corresponding connector component 12 of the control system 100, first align the plug-in end 210 of the shell 2 with the slot 122 of the corresponding connector component 12. Next, push the push-pull ring 52 backward along a pushing direction D1 parallel to the front-to-back direction X, so that the push-pull ring 52 drives the shell 2 to move backward through the locking spring piece 51. During the backward movement of the plug-in optical channel monitor 200 along the pushing direction D1, the plug-in end 210 and the plug-in portion 323 will first extend into the slot 122, and then the latching sheet 511 of the locking spring piece 51 will contact the spring piece 123 respectively. When the latching sheet 511 contacts the spring piece 123 respectively, it will stretch the spring piece 123 outward to bend and deform it and accumulate the reset elastic force. When the plug-in optical channel monitor 200 moves to Fig. 9 In the plug-in position shown, each latching sheet 511 passes over the end of the corresponding spring sheet 123. At this time, each spring sheet 123 is reset by the accumulated restoring elastic force, so that the end of each spring sheet 123 is locked to the corresponding latching sheet 511, and the locking spring sheet 51 is locked to the shielding cover 121 of the corresponding connector assembly 12. In this way, the pluggable optical channel monitor 200 can be firmly positioned in the plug-in position.

[0052] See also Figure 4 , Figure 6 , Figure 7 and Fig. 9 When the plug-in optical channel monitor 200 is in the plug-in position, the plug-in portion 323 of the control module 32 is plugged into the socket connector of the corresponding connector assembly 12 and electrically connected to the socket connector, and the receiving groove 26 of the housing 2 receives the socket connector. At this time, the optical fiber connectors can be inserted into the docking grooves 27 respectively, so that the optical fiber connectors are docked with the optical fiber connector 410 of the optical signal receiving assembly 41 and the optical fiber connector 420 of the optical signal output assembly 42.

[0053] After receiving the optical signal input by the corresponding optical fiber connector, the optical fiber 411 of the optical signal receiving component 41 transmits it to the input optical fiber 430 of the optical splitter 43. The optical splitter 43 outputs a small part of the optical signal to the optical signal monitoring module 31 for monitoring through the first output optical fiber 431, and outputs most of the optical signal to the optical signal output component 42 through the second output optical fiber 432, so that the optical signal output component 42 outputs most of the optical signal to the corresponding optical fiber connector and then sends it back to the main optical path. The optical signal monitoring module 31 obtains monitoring information from a small part of the optical signal received at the first output optical fiber 431 and transmits it to the control module 32, so that the control module 32 can output the monitoring information to the control system 100 (such as the control system 100) through the plug-in unit 323. Figure 1) and transmitted to the mainboard 11 through the corresponding connector assembly 12. In this way, the control system 100 can use the monitoring information uploaded to the mainboard 11 as the basis for subsequent monitoring, adjustment and analysis. When the control system 100 wants to set the configuration information of the optical signal monitoring module 31, the control module 32 receives the configuration information output from the mainboard 11 of the control system 100 to the corresponding connector assembly 12 through the plug-in portion 323, and then transmits the configuration information to the optical signal monitoring module 31, so as to complete the configuration information setting of the optical signal monitoring module 31. In this way, the plug-in optical channel monitor 200 can monitor the performance of the optical channel.

[0054] See also Fig.10 and Fig.11 When the pluggable optical channel monitor 200 is to be pulled out of the slot 122 of the corresponding connector assembly 12, the push direction is opposite to the pushing direction D1 (eg Fig. 9 The push-pull ring 52 is pulled forward in a pulling direction D2 (as shown in FIG. 2 ), so that the push-pull ring 52 drives the locking spring 51 to slide relative to the housing 2. During the sliding of the locking spring 51 along the pulling direction D2, the latching plates 511 will respectively push the springs 123 outward to bend and deform them, each bent plate 513 will compress the corresponding elastic element 53 to deform it and accumulate the restoring elastic force, and each protruding plate 512 will slide forward in the corresponding limiting groove 221. When the latching plates 511 are respectively moved away from the ends of the springs 123, the locking state of the locking spring 51 is released.

[0055] Continue to pull the push-pull ring 52 along the pulling direction D2, and the pulling force applied by the push-pull ring 52 to the locking spring 51 will be transmitted to the housing 2 through the bent sheet 513 and the elastic element 53 in sequence, so as to drive the housing 2 to slide forward. When each protruding sheet 512 abuts against the corresponding stop end surface 222, the forward sliding stroke of the locking spring 51 when being pulled by the push-pull ring 52 is limited, and the aforementioned pulling force will also be transmitted to the housing 2 through the protruding sheet 512. The pulling force applied by the push-pull ring 52 can be transmitted to the housing 2 through multiple force application points jointly formed by the elastic element 53 and the protruding sheet 512, which can improve the uniformity of the force applied to the housing 2, thereby smoothly driving the housing 2 to slide relative to the shielding cover 121 of the corresponding connector assembly 12. In this way, the plug-in portion 323 can be smoothly pulled out of the socket connector of the corresponding connector assembly 12, and the plug-in optical channel monitor 200 can be smoothly pulled out of the slot 122.

[0056] When the pluggable optical channel monitor 200 is pulled out of the slot 122 , the push-pull ring 52 is released, and the elastic element 53 rebounds the locking spring 51 through the accumulated restoring elastic force, so that the locking spring 51 returns to the initial position.

[0057] See also Figure 1and Figure 4 The push-pull device 5 provides the user with the function of pushing and pulling the pluggable optical channel monitor 200, so that the user can conveniently push the push-pull device 5 to plug the pluggable optical channel monitor 200 into the corresponding slot 122 of the control system 100, and pull the push-pull device 5 to remove the pluggable optical channel monitor 200 from the corresponding slot 122 of the control system 100. In this way, the convenience of disassembly and assembly of the pluggable optical channel monitor 200 can be improved, so as to facilitate the subsequent maintenance or replacement of the pluggable optical channel monitor 200.

[0058] Since the optical signal monitoring module 31 is a photonic integrated circuit based on silicon photonic technology, it can achieve high integration and miniaturization. Therefore, the pluggable optical channel monitor 200 has a small overall size and light weight and can meet the design requirements of miniaturization. In addition, the external specifications of the pluggable optical channel monitor 200 can be designed to be the same as those of existing optical modules, so that the pluggable optical channel monitor 200 can be used in the same occasions as existing optical modules.

[0059] By making the optical signal monitoring module 31 and the control module 32 independent components, the optical signal monitoring module 31 can integrate a larger number of photonic devices 314, and the control module 32 can integrate a larger number of electronic devices. This helps the plug-in optical channel monitor 200 to develop in the direction of monitoring more different types of monitoring information. In addition, by stacking the optical signal monitoring module 31 and the control module 32 on each other, the space occupied by the optical signal monitoring device 3 on the two-dimensional plane formed by the front-to-back direction X and the left-to-right direction Y can be reduced, so that the overall structure of the plug-in optical channel monitor 200 is compact and the overall volume can be reduced.

[0060] See also Figure 4 and Figure 6 It should be noted that the pluggable optical channel monitor 200 of the first embodiment can also have the following implementation forms according to needs: the optical fiber connector connected to the optical signal receiving component 41 of the optical signal transmission device 4 is used to transmit a part of the optical signal of the main optical path after being split by the external optical splitter, and the optical fiber 411 of the optical signal receiving component 41 is connected to the optical fiber 312 of the optical signal monitoring module 31, so that the optical signal receiving component 41 can directly transmit a part of the optical signal to the optical signal monitoring module 31 for monitoring. In this way, the use of the optical signal output component 42 and the optical splitter 43 can be omitted.

[0061] See also Fig.12 , is a second embodiment of the pluggable optical channel monitor 200 of the present invention, and its overall structure is substantially the same as that of the first embodiment, except that the optical signal monitoring device 3 is different.

[0062] In the second embodiment, the optical signal monitoring module 31 integrates the control module 32 (eg, Figure 3 The circuit board 310 of the optical signal monitoring module 31 is inserted into the opening 24 of the housing 2 (as shown in FIG. Figure 4 As shown in FIG. 2 , the optical signal monitoring module 31 is provided with a plug-in portion 315 protruding out of the opening 24. Thus, the use of the control module 32 can be omitted, thereby reducing the manufacturing cost of the optical signal monitoring device 3. The optical signal monitoring module 31 is configured to obtain monitoring information from the optical signal and output the monitoring information to the control system 100 (as shown in FIG. 2 ) through the plug-in portion 315. Figure 1 As shown), the optical signal monitoring module 31 is also configured to receive configuration information output by the control system 100 through the plug-in portion 315.

[0063] To summarize the above, the plug-in optical channel monitor 200 of each embodiment, the push-pull device 5 provides the user with the function of pushing and pulling the plug-in optical channel monitor 200, which can improve the convenience of the plug-in optical channel monitor 200 in disassembly and assembly, so as to facilitate the subsequent repair or replacement of the plug-in optical channel monitor 200. Since the optical signal monitoring module 31 is a photonic integrated circuit based on silicon photonic technology, it can achieve the effects of high integration and miniaturization. In this way, the overall volume and weight of the plug-in optical channel monitor 200 are small and light, and can meet the design requirements of miniaturization. In addition, the appearance specifications of the plug-in optical channel monitor 200 can be designed to be the same as the appearance specifications of the existing optical module, so that the plug-in optical channel monitor 200 can be used in the same occasions as the existing optical module, and can indeed achieve the purpose of the present invention.

Claims

1. A pluggable optical channel monitor (200), suitable for being plugged into a control system (100); characterized in that: The pluggable optical channel monitor (200) comprises a housing (2), an optical signal transmission device (4), an optical signal monitoring device (3), and a push-pull device (5); the optical signal transmission device (4) is arranged in the housing (2) and is at least used to receive an optical signal; the optical signal monitoring device (3) is arranged in the housing (2) and is connected to the optical signal transmission device (4) and is used to monitor the optical signal; the optical signal monitoring device (3) comprises a protruding portion extending from the housing (2) The push-pull device (5) is used for being plugged into a plug-in portion (315, 323) of the control system (100); the push-pull device (5) is arranged on the housing (2) and protrudes out of an end of the housing (2) opposite to the plug-in portion (315, 323), and is used for pushing the housing (2) to plug the plug-in portion (315, 323) into the control system (100) or pulling the housing (2) to pull the plug-in portion (315, 323) away from the control system (100).

2. The pluggable optical channel monitor according to claim 1, characterized in that: The optical signal monitoring device comprises an optical signal monitoring module connected to the optical signal transmission device. The optical signal monitoring module is a photonic integrated circuit based on silicon photonic technology and has the plug-in portion.

3. The pluggable optical channel monitor according to claim 2, characterized in that: The optical signal monitoring module is configured to obtain monitoring information from the optical signal and output the monitoring information to the control system through the plug-in part. The optical signal monitoring module is also configured to receive configuration information output by the control system through the plug-in part.

4. The pluggable optical channel monitor according to claim 1, characterized in that: The optical signal monitoring device includes an optical signal monitoring module connected to the optical signal transmission device, and a control module stacked on the optical signal monitoring module and electrically connected to the optical signal monitoring module. The optical signal monitoring module is a photonic integrated circuit based on silicon photonic technology, and the control module has the plug-in part.

5. The pluggable optical channel monitor according to claim 4, characterized in that: The optical signal monitoring module is configured to obtain monitoring information from the optical signal and transmit the monitoring information to the control module, so that the control module can output the monitoring information to the control system through the plug-in part, and the control module is configured to receive configuration information output by the control system through the plug-in part and transmit the configuration information to the optical signal monitoring module.

6. The pluggable optical channel monitor according to claim 4, characterized in that: The optical signal monitoring module has a first connector, and the control module has a second connector electrically connected to the first connector.

7. The pluggable optical channel monitor according to any one of claims 1 to 6, characterized in that: The optical signal transmission device includes an optical signal receiving component, an optical signal output component, and an optical splitter. The optical signal receiving component is used to receive the optical signal. The optical splitter is connected between the optical signal receiving component, the optical signal output component and the optical signal monitoring device to distribute the optical signal in a predetermined ratio and output it to the optical signal monitoring device and the optical signal output component.

8. The pluggable optical channel monitor according to claim 7, characterized in that: The shell includes a plug-in end adjacent to the plug-in portion and a docking end opposite to the plug-in end. The shell is formed with two docking grooves recessed from the docking end toward the plug-in end. A portion of the optical signal receiving component and a portion of the optical signal output component are respectively accommodated in the docking grooves.

9. The pluggable optical channel monitor according to any one of claims 1 to 6, characterized in that: The shell includes a plug end and a butt end opposite to the plug end and adjacent to the optical signal transmission device. The shell is formed with a receiving groove recessed from the plug end toward the butt end, and the plug part is accommodated in the receiving groove.

10. The pluggable optical channel monitor according to claim 1, characterized in that: The push-pull device includes two locking springs and a push-pull ring. The locking springs can be slidably connected to the housing to be locked to the control system. The push-pull ring is connected to the locking springs to push and pull the locking springs to lock them to the control system or unlock them.

11. The pluggable optical channel monitor according to claim 10, characterized in that: Each of the locking elastic sheets has a sliding sheet body slidably connected to the housing, and a latching sheet body, wherein the sliding sheet body has an end, and the latching sheet body extends from the end and is bent to be latched to the control system.

12. The pluggable optical channel monitor according to claim 10, characterized in that: The shell is formed with two limit grooves, and the shell includes two stop end faces respectively located at one end of the limit grooves. Each of the locking spring pieces has a protruding sheet body that is slidably connected to the corresponding limit groove. The protruding sheet body is used to stop at the corresponding stop end face to limit the sliding stroke of the locking spring piece when it is pulled by the push-pull ring.

13. The pluggable optical channel monitor according to any one of claims 10 to 12, characterized in that: The push-pull device further comprises two elastic elements, each of which is arranged between the housing and the corresponding locking elastic sheet, and is used to apply elastic force to the corresponding locking elastic sheet in the direction of the plug-in portion.

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