An optical module test coupling system, method, control device and storage medium

Abstract

The application belongs to the field of optical modules, and provides an optical module test coupling system, method, control device and storage medium, wherein the system comprises an optical switch module and a control device; the optical switch module is electrically connected with the control device; in a first test process, the optical switch module is configured to be physically connected with the emission lenses of all emission channels of a first optical module, an optical power meter and a ring flux tester; the control device is configured to be electrically connected with the optical power meter and the ring flux tester; the optical switch module is controlled to transmit optical signals passing through the emission lenses of all emission channels to the optical power meter and the ring flux tester; the emission optical power of all emission channels detected by the optical power meter and the ring flux of all emission channels detected by the ring flux tester are acquired. The optical power and the ring flux of the first optical module can be tested simultaneously, and the test efficiency is high.

Description

Technical Field

[0001] This invention belongs to the field of optical modules, and particularly relates to an optical module testing coupling system, method, control device, and storage medium. Background Technology

[0002] Existing multimode optical modules primarily use lasers as the light source and optical fibers as the waveguide medium. In addition to requirements for output optical power (OOP), multimode optical module protocols also constrain the encircled flux (EF) of the light source. EF characterizes the distribution of optical energy in the emitted signal; the magnitude of the EF of the optical signal injected into the fiber affects the differential mode delay (DMD) of the optical communication system. For typical speed (e.g., 10Gbps / 25Gbps) optical communication systems, it is required that less than 30% of the optical energy is distributed within a 9µm diameter fiber loop, and more than 86% of the optical energy is distributed within a 38µm diameter fiber loop. Poor encircled flux specifications can lead to suboptimal performance in multimode optical modules, including poor optical power, eye diagram, and bit error rate.

[0003] In multimode optical modules, the coupling between the light source and optical components such as the emitting lens is usually based on active coupling of optical power. Conventional coupling platforms do not have the capability for ring flux testing. Typically, the ring flux tester is connected to the multimode optical module after it has been packaged for ring flux testing. If the test results are unsatisfactory at this time, the multimode optical module needs to be reworked, which reduces production efficiency and yield. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide an optical module testing coupling system, method and storage medium, which aims to solve the problem that conventional coupling platforms do not have the ability to perform ring throughput testing.

[0005] A first aspect of this invention provides an optical module testing coupling system, including an optical switch module and a control device;

[0006] The optical switch module is electrically connected to the control device;

[0007] During the first test, the optical switch module was configured as follows:

[0008] The transmitting lenses, optical power meters, and ring flux meters of the M transmitting channels of the first optical module are physically connected.

[0009] During the first test, the control device is configured to:

[0010] Electrically connected to the optical power meter and the ring flux meter;

[0011] The optical switch module controls the optical signals transmitted through the emission lenses of the M emission channels to the optical power meter and the ring flux meter, respectively.

[0012] The emitted optical power of the M emission channels detected by the optical power meter and the annular flux of the M emission channels detected by the annular flux meter are obtained.

[0013] Where M is the total number of transmission channels of the first optical module.

[0014] In one embodiment, the optical switch module includes a first optical switch and a first optical splitter;

[0015] The controlled end of the first optical switch is electrically connected to the control device, and the output end of the first optical switch is physically connected to the input end of the first optical splitter.

[0016] During the first test, the first optical switch was configured as follows:

[0017] The M input terminals of the first optical switch are physically connected to the emitting lenses of the M emitting channels one by one;

[0018] During the first test, the first optical splitter was configured as follows:

[0019] The first output terminal of the first optical splitter is physically connected to one input terminal of the optical power meter, and the second output terminal of the first optical splitter is physically connected to the input terminal of the ring flux meter.

[0020] During the first test, the control device is specifically configured as follows:

[0021] Electrically connected to the lasers of the M emission channels;

[0022] Control the laser in the i-th emission channel to emit optical signals;

[0023] The optical path between the i-th input terminal and the output terminal of the first optical switch is connected, and the optical path between the remaining M-1 input terminals and the output terminal of the first optical switch is disconnected, so that the light signal transmitted through the transmitting lens of the i-th transmitting channel is split by the first optical splitter and transmitted to the optical power meter and the ring flux tester respectively.

[0024] The transmitted optical power of the i-th transmission channel detected by the optical power meter and the ring flux of the i-th transmission channel detected by the ring flux meter are obtained.

[0025] Where i = 1, 2, ..., M.

[0026] In one embodiment, the optical switch module includes a second optical switch;

[0027] The controlled terminal of the second optical switch is electrically connected to the control device;

[0028] During the first test, the second optical switch was configured as follows:

[0029] The M input terminals of the second optical switch are physically connected to the emitting lenses of the M emitting channels one by one, the first output terminal of the second optical switch is physically connected to one input terminal of the optical power meter, and the second output terminal of the second optical switch is physically connected to the input terminal of the ring flux tester.

[0030] During the first test, the control device is specifically configured as follows:

[0031] Electrically connected to the lasers of the M emission channels;

[0032] Control the lasers in the i-th and j-th emission channels to emit optical signals;

[0033] The optical path between the i-th input terminal and the first output terminal and the optical path between the j-th input terminal and the second output terminal of the second optical switch are connected, and the optical paths between the remaining M-2 input terminals of the second optical switch and the first and second output terminals are disconnected, so that the light signal transmitted through the emitting lens of the i-th emitting channel is transmitted to the optical power meter and the light signal transmitted through the emitting lens of the j-th emitting channel is transmitted to the ring flux tester.

[0034] The transmitted optical power of the i-th transmission channel detected by the optical power meter and the ring flux of the j-th transmission channel detected by the ring flux meter are obtained.

[0035] Where i = 1, 2, ..., M, j = 1, 2, ..., M, i ≠ j, M ≥ 2.

[0036] In one embodiment, the optical switch module includes a third optical switch;

[0037] The third optical switch is electrically connected to the control device;

[0038] During the first test, the third optical switch is configured as follows:

[0039] The M input terminals of the third optical switch are physically connected to the emission lenses of the M emission channels one by one, the 1st to the Mth output terminals of the third optical switch are physically connected to the 1st to the Mth input terminals of the optical power meter one by one, and the M+1th output terminal of the third optical switch is physically connected to the input terminal of the ring flux tester.

[0040] During the first test, the control device is specifically configured as follows:

[0041] The optical path between the i-th input terminal and the M+1-th output terminal of the third optical switch and the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals are connected, so that the optical signal transmitted through the emitting lens of the i-th emitting channel is transmitted to the ring flux tester, and the optical signals transmitted through the emitting lenses of the remaining M-1 emitting channels are transmitted one-to-one to the M-1 input terminals of the optical power meter.

[0042] The ring flux of the i-th transmission channel detected by the ring flux tester and the transmitted optical power of the remaining M-1 transmission channels detected by the optical power meter are obtained.

[0043] Where i = 1, 2, ..., M, M ≥ 2.

[0044] In one embodiment, the optical switch module includes a fourth optical switch and a second optical splitter;

[0045] The fourth optical switch is electrically connected to the control device, and the (M+1)th output terminal of the fourth optical switch is physically connected to the input terminal of the second optical splitter.

[0046] During the first test, the fourth optical switch is configured as follows:

[0047] The M input terminals of the fourth optical switch are physically connected to the emitting lenses of the M emitting channels one by one, and the 1st to Mth output terminals of the fourth optical switch are physically connected to the 1st to Mth input terminals of the optical power meter one by one.

[0048] During the first test, the second optical splitter was configured as follows:

[0049] The first output terminal of the second optical splitter is physically connected to the (M+1)th input terminal of the optical power meter, and the second output terminal of the second optical splitter is physically connected to the input terminal of the ring flux meter.

[0050] During the first test, the control device is specifically configured as follows:

[0051] The optical path between the i-th input terminal and the M+1-th output terminal of the fourth optical switch and the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals are connected, so that the optical signal passing through the emitting lens of the i-th emitting channel is split by the second optical splitter and transmitted to the M+1-th input terminal of the optical power meter and the ring flux tester respectively, and the optical signals passing through the emitting lenses of the remaining M-1 emitting channels are transmitted to the M-1 input terminals of the optical power meter in a one-to-one correspondence;

[0052] The emitted optical power of the M emission channels detected by the optical power meter and the ring flux of the i-th emission channel detected by the ring flux meter are obtained.

[0053] Where i = 1, 2, ..., M, M ≥ 2.

[0054] In one embodiment, M≥2, the first optical module is not encapsulated, and the emission lenses of the M emission channels are integrated.

[0055] Based on the first test process, during the first coupling debugging process, the control device is further configured to:

[0056] Electrically connected to the displacement system;

[0057] Based on the emitted optical power of the first and Mth emission channels respectively, the displacement system is controlled to adjust the position of the emission lenses of the M emission channels relative to the laser, so as to maximize the emitted optical power of the first and Mth emission channels;

[0058] If the transmitted optical power of the first and Mth transmission channels is at its maximum, and the transmitted optical power of the remaining transmission channels is qualified, then a coupling debugging result indicating that the transmitted optical power of the M transmission channels is qualified is output; otherwise, a coupling debugging result indicating that the transmitted optical power of the remaining transmission channels is unqualified is output.

[0059] In one embodiment, during the second test, the control device is configured to:

[0060] Electrically connected to the built-in register of the second optical module;

[0061] Obtain the reception parameters of the N reception channels of the second optical module from the built-in register;

[0062] The reception indicators of the N reception channels are obtained based on the reception parameters;

[0063] The receiving parameters include at least one of the positive emitter coupling logic level and the received signal strength of the N receiving channels, and the receiving indicators include at least one of the received optical power and the receiving sensitivity, where N is the total number of receiving channels of the second optical module, and N≤M.

[0064] In one embodiment, N≥2, the second optical module is not encapsulated, and the receiving lenses of the N receiving channels are integrated.

[0065] Based on the second test process, during the second coupling debugging process, the control device is further configured to:

[0066] Electrically connected to the displacement system;

[0067] Based on the reception parameters of the first and Nth receiving channels respectively, the displacement system is controlled to adjust the position of the receiving lenses of the N receiving channels relative to the photodetector, so as to maximize the reception parameters of the first and Nth receiving channels;

[0068] If the reception parameters of the first and Nth receiving channels are at their maximum, and the reception parameters of the remaining receiving channels are qualified, then a coupling debugging result indicating that the reception parameters of the N receiving channels are qualified is output; otherwise, a coupling debugging result indicating that the reception parameters of the remaining receiving channels are unqualified is output.

[0069] In one embodiment, the optical module test coupling system further includes at least one of an optical power meter, a ring flux meter, a displacement system, and a light source device.

[0070] A third aspect of the present invention provides an optical module test coupling method, applied to a control device in the optical module test coupling system provided in the first aspect of the present invention, the method comprising:

[0071] The optical switch module controls the optical signals transmitted through the emission lenses of the M emission channels to the optical power meter and the ring flux meter, respectively.

[0072] The emitted optical power of the M emission channels detected by the optical power meter and the annular flux of the M emission channels detected by the annular flux meter are obtained.

[0073] A third aspect of the present invention provides a control device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and further including an input / output device or electrically connected to the input / output device, wherein the processor executes the computer program to implement the steps of the optical module testing coupling method provided in the second aspect of the present invention.

[0074] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the optical module testing coupling method provided in the second aspect of the present invention.

[0075] The optical module testing coupling system provided by the first aspect of the present invention includes an optical switch module and a control device. The optical switch module is electrically connected to the control device. During the first test of the optical power and ring flux of the first optical module, the optical switch module is configured to be physically connected to the emission lenses, optical power meters, and ring flux testers of all emission channels of the first optical module, and the control device is configured to be electrically connected to the optical power meters and ring flux testers. This allows the control device to control the optical switch module to transmit the optical signals passing through the emission lenses of all emission channels to the optical power meters and ring flux testers respectively, thereby obtaining the emitted optical power of all emission channels detected by the optical power meters and the ring flux of all emission channels detected by the ring flux testers. This enables the optical module testing coupling system to simultaneously test the optical power and ring flux of the first optical module, resulting in high testing efficiency. When applied to unpackaged first optical modules, it can effectively reduce the probability of rework due to poor performance after the first optical module is packaged, thereby improving production efficiency and yield.

[0076] It is understood that the beneficial effects of the second to fourth aspects mentioned above can be found in the relevant descriptions in the first aspect above, and will not be repeated here. Attached Figure Description

[0077] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be calculated based on these drawings without creative effort.

[0078] Figure 1 This is a schematic diagram of the first structure of the optical module testing coupling system provided in this embodiment of the invention;

[0079] Figure 2 This is a schematic diagram of the first process of the optical module testing coupling method provided in the embodiments of the present invention;

[0080] Figure 3 This is a schematic diagram of the second structure of the optical module testing coupling system provided in this embodiment of the invention;

[0081] Figure 4 This is a schematic diagram of the third structure of the optical module testing coupling system provided in this embodiment of the invention;

[0082] Figure 5 This is a schematic diagram of the fourth structure of the optical module testing coupling system provided in this embodiment of the invention;

[0083] Figure 6 This is a schematic diagram of the fifth structure of the optical module testing coupling system provided in this embodiment of the invention;

[0084] Figure 7 This is a schematic diagram of the sixth structure of the optical module testing coupling system provided in this embodiment of the invention;

[0085] Figure 8 This is a schematic diagram of the second process of the optical module testing coupling method provided in the embodiment of the present invention;

[0086] Figure 9 This is a schematic diagram showing the position of the first optical module provided in an embodiment of the present invention;

[0087] Figure 10 This is a schematic diagram of the third process of the optical module testing coupling method provided in the embodiments of the present invention;

[0088] Figure 11 This is a schematic diagram of the fourth process of the optical module testing coupling method provided in the embodiments of the present invention;

[0089] Figure 12 This is a schematic diagram of the fifth process of the optical module testing coupling method provided in the embodiments of the present invention;

[0090] Figure 13 This is a schematic diagram of the seventh structure of the optical module testing coupling system provided in this embodiment of the invention;

[0091] Figure 14 This is a schematic diagram of the sixth process of the optical module testing coupling method provided in the embodiments of the present invention;

[0092] Figure 15 This is a schematic diagram of the eighth structure of the optical module testing coupling system provided in this embodiment of the invention;

[0093] Figure 16 This is a schematic diagram of the seventh process of the optical module testing coupling method provided in the embodiments of the present invention;

[0094] Figure 17 This is a schematic diagram of the eighth process of the optical module testing coupling method provided in the embodiments of the present invention;

[0095] Figure 18 This is a schematic diagram of the control device provided in an embodiment of the present invention.

[0096] Figure label:

[0097] Optical switch module 1, first optical switch 11, first optical splitter 12, second optical switch 13, third optical switch 14, fourth optical switch 15, second optical splitter 16;

[0098] Control device 2, processor 21, memory 22, computer program 23;

[0099] First optical module 3, emitting lens 311-31M, laser 321-32M;

[0100] Optical power meter 4;

[0101] Circular flux tester 5;

[0102] Displacement system 6;

[0103] The second optical module 7 includes receiving lenses 711-71N, photodetectors 721-72N, preamplifiers 731-73N, and built-in registers 74.

[0104] 8. Light source equipment. Detailed Implementation

[0105] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0106] Furthermore, in the description of this invention and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0107] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of the invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. The terms "a plurality of," and variations thereof mean "two" or "more than two."

[0108] This invention provides an optical module testing coupling system that can be applied to, but is not limited to, the following six scenarios:

[0109] Scenario 1: Transmit optical power and ring flux test of the transmit channel of a multimode optical module.

[0110] The transmit optical power and ring flux of the multimode optical module's transmit channel were tested using an optical power meter and a ring flux meter to determine whether the transmit optical power and ring flux of the multimode optical module's transmit channel met the design requirements of the multimode optical module protocol.

[0111] Scenario 2: Coupling and debugging of the transmitting lens of the transmitting channel of an unencapsulated multimode optical module.

[0112] In the case where the multimode optical module is not encapsulated, based on scenario one, according to at least one of the emitted optical power and ring flux of the emitted optical channel of the multimode optical module, the position of the emitted lens of the multimode optical module relative to the laser is adjusted so that after adjusting the position of the emitted lens, the emitted optical power and ring flux of the emitted optical channel of the multimode optical module meet the design requirements of the multimode optical module protocol.

[0113] Scenario 3: Testing the reception performance of the optical module's receiving channel

[0114] The control module reads the receiving parameters stored in the built-in register of the optical module and processes them into receiving indicators. The receiving indicators of the optical module's receiving channel are then tested to determine whether the receiving indicators of the optical module's receiving channel meet the design requirements of the optical module protocol. The optical module can be a single-mode optical module or a multi-mode optical module. The receiving parameters can be the positive emitter coupled logic (PECL) level or the received signal strength (RSSI) of the preamplifier output of the receiving channel. The receiving indicators can be the input optical power (IOP) or the receive sensitivity (RS).

[0115] Scenario 4: Coupling and debugging of the receiving lens of the receiving channel of an unencapsulated optical module.

[0116] In the case where the optical module is not encapsulated, based on scenario three, according to the receiving indicators of the optical module's receiving channel, the position of the receiving lens of the optical module relative to the laser is adjusted so that after adjusting the position of the receiving lens, the receiving indicators of the optical module's receiving channel meet the design requirements of the optical module protocol.

[0117] Scenario 5: Transmit optical power test of the transmit channel of a single-mode optical module

[0118] The transmit optical power of the single-mode optical module's transmit channel is tested using an optical power meter to determine whether the transmit optical power of the single-mode optical module's transmit channel meets the design requirements of the single-mode optical module protocol.

[0119] Scenario 6: Coupling and debugging of the transmitting lens of the transmitting channel of an unencapsulated single-mode optical module.

[0120] In the case where the single-mode optical module is not encapsulated, based on scenario five, the position of the transmitting lens of the single-mode optical module relative to the laser is adjusted according to the transmitted optical power of the transmitting channel of the single-mode optical module. This adjustment ensures that the transmitted optical power of the transmitting channel of the single-mode optical module meets the design requirements of the single-mode optical module protocol.

[0121] In applications, optical module testing and coupling systems can be used to test or couple and debug any type of optical module, depending on actual needs. Based on the mode of each channel, optical modules can be single-mode or multi-mode. Based on the number of channels, they can be single-channel or multi-channel. Based on their transceiver functions, they can be optical transmitters (transmitters only), receivers (receivers only), transceivers (transceivers with both transmission and reception capabilities), or transponders.

[0122] In applications, optical transmitting modules typically consist of optical transmitting devices (e.g., lasers), transmitting lenses, functional circuitry (e.g., printed circuit boards, PCBs), and interfaces (e.g., fiber optic interfaces, electrical interfaces, etc.). Optical receiving modules typically consist of optical receiving devices (e.g., photodetectors), receiving lenses, preamplifiers, functional circuitry, and interfaces. Optical transceiver modules and optical repeater modules typically consist of optical transmitting sub-components, transmitting lenses, receiving lenses, preamplifiers, functional circuitry, and interfaces.

[0123] In applications, the laser can be a semiconductor laser (LD), such as a vertical-cavity surface-emitting laser (VCSEL). The photodetector can be implemented using any device with photoelectric conversion capabilities, such as a photodiode (PD).

[0124] like Figure 1As shown, the optical module testing coupling system provided by the present invention includes an optical switch module 1 and a control device 2, wherein the optical switch module 1 and the control device 2 are electrically connected.

[0125] In applications, depending on the specific application scenario of the optical module test coupling system, the external devices required to connect the optical switch module and control device also vary.

[0126] like Figure 1 As shown, this example illustrates the connection relationship between the optical switch module 1 and the control device 2 and external devices during the first test process of testing the transmitted optical power and ring flux of the first optical module 3's transmission channel;

[0127] Among them, the optical switch module 1 is configured as follows:

[0128] It is physically connected to the emission lenses 311 to 31M (i.e., 311, 312, ..., 31M) of the M emission channels of the first optical module 3, the optical power meter 4, and the ring flux meter 5.

[0129] Control device 2 is configured as follows:

[0130] Electrically connected to optical power meter 4 and ring flux meter 5; and

[0131] Perform the first optical module test method, such as Figure 2 As shown, the first optical module testing method includes the following steps S101 and S102:

[0132] Step S101: Control the optical switch module 1 to transmit the optical signals through the emission lenses 311 to 31M of the M emission channels to the optical power meter 4 and the ring flux meter 5 respectively;

[0133] Step S102: Obtain the emitted optical power of the M emission channels detected by the optical power meter 4, and the annular flux of the M emission channels detected by the annular flux meter 5.

[0134] In this application, M represents the total number of transmit channels of the first optical module, which is a multimode optical module. The first optical module can be a single-mode single-channel optical receiver module, a single-mode single-channel optical transceiver module, a multimode multi-channel optical transmitter module, or a multimode multi-channel optical transceiver module. The multimode multi-channel optical transceiver module can be a 100G QSFP28 SR4 optical transceiver module with an optical signal transmission rate of 100Gbps. Figure 1 The example shows a first optical module 3 comprising M emission lenses 311-31M for emission channels and M corresponding lasers 321-32M (i.e., 321, 322, ..., 32M), each emission channel including one emission lens and one corresponding laser. It should be understood that... Figure 1The structure of the first optical module 3 shown is just an example of an optical module. In practical applications, it will inevitably include other physical structures or electrical components, such as functional circuits and interfaces.

[0135] In applications, the laser can be turned on or off manually by the user or under the control of a control device. When the laser is turned on, it emits a light signal to the corresponding emitting lens.

[0136] In applications, an optical switch module can consist of an optical switch, an optical power splitter (OPS), etc. The optical switch module can include only one or more optical switches, or it can include one or more optical switches and one or more optical splitters. The selection can be made according to actual needs. As long as it can realize the function of transmitting the optical signals through the transmitting lenses of the M transmitting channels of the first optical module to the optical power meter and the ring flux tester under the control of the control device, so as to simultaneously detect the transmitted optical power and ring flux of at least one transmitting channel.

[0137] In applications, an optical switch is an optical device with one or more selectable transmission ports. Its function is to physically switch or logically operate optical signals in optical transmission lines or integrated optical circuits, selectively outputting part or all of the optical signals transmitted through M transmission channels. An optical splitter is a fiber optic connector with at least one input and multiple outputs. It can split the optical signal output from an optical switch into at least two beams, and an optical splitter with a suitable splitting ratio can be selected according to actual needs.

[0138] In applications, the control device can be any computing device with data processing and control functions, such as a tablet computer, laptop computer, personal computer, or industrial computer. It is used to control the operating status of other electrically connected devices, acquire and process data output from these devices, and provide feedback control to the operating status of other devices based on the data processing results. For example, it can control the on / off state of the transmission port of an optical switch, acquire the emitted optical power detected by an optical power meter and the ring flux detected by a ring flux meter, and control the on / off state of the optical switch's transmission port based on the emitted optical power and ring flux feedback. The control device can include or be connected to input / output devices such as display devices, keyboards, and audio acquisition / playback devices to enable human-machine interaction with the user during operation. For example, it can display or broadcast the emitted optical power, ring flux, and the operating status of the control device itself and other electrically connected devices, and accept user touch commands or voice commands.

[0139] In applications, electrical connection refers to a connection method used to transmit electrical signals such as voltage signals, current signals, and pulse signals through a conductive medium. Physical connection refers to a connection method used to transmit optical signals or no signals at all, through a non-conductive medium. In the first test, the optical switch module is physically connected to the transmitting lenses of the M transmitting channels, the optical power meter, and the ring flux meter via fiber optic interfaces and fiber optic patch cords; the control device is electrically connected to the first optical module, the optical switch module, the optical power meter, and the ring flux meter via communication interfaces and cables, where the cables can be serial buses (Inter-Integrated Circuit, IIC).

[0140] In applications, based on Figure 1 The structure of the optical switch module shown allows the control device to control the optical switch module to split the light signal passing through the emission lens of one emission channel into two beams each time during the first test, and then transmit them to the optical power meter and the ring flux meter respectively to detect the emitted optical power and ring flux of one emission channel; alternatively, the control device can also control the optical switch module to transmit one beam of the light signal passing through two emission channels to the optical power meter and the other beam to the ring flux meter each time to detect the emitted optical power of one emission channel and the ring flux of the other emission channel; by performing this test M times, the emitted optical power and ring flux of M emission channels can be obtained.

[0141] based on Figure 1 The optical module test coupling system shown can simultaneously detect the transmit optical power and ring flux of one transmit channel, or simultaneously detect the transmit optical power of one transmit channel and the ring flux of another transmit channel, when used to test the transmit optical power and ring flux of the transmit channels of multimode optical modules. This can effectively improve test efficiency. When applied to unpackaged multimode optical modules, it can effectively reduce the probability of rework due to poor performance after packaging, thereby improving production efficiency and yield.

[0142] like Figure 3 As shown, based on Figure 1 The structure of the optical module test coupling system shown is such that, in one embodiment, the optical switch module 1 includes a first optical switch 11 and a first optical splitter 12;

[0143] The controlled end of the first optical switch 11 is electrically connected to the control device 2, and the output end of the first optical switch 11 is physically connected to the input end of the first optical splitter 12.

[0144] During the first test, the first optical switch 11 was configured as follows:

[0145] The M input terminals of the first optical switch 11 are physically connected to the emission lenses 311 to 31M of the M emission channels, respectively.

[0146] During the first test, the first optical splitter 12 was configured as follows:

[0147] The first output terminal of the first optical splitter 12 is physically connected to one input terminal of the optical power meter 4, and the second output terminal of the first optical splitter 12 is physically connected to the input terminal of the ring flux meter 5.

[0148] During the first test, control device 2 was specifically configured as follows:

[0149] Electrically connected to lasers 321-32M with M emission channels; and

[0150] The first optical module test coupling method is executed, which specifically includes the following steps S200 to S202:

[0151] Step S200: Control the laser 32i of the i-th emission channel to emit an optical signal;

[0152] Step S201: Connect the optical path between the i-th input terminal and the output terminal of the first optical switch 11, and disconnect the optical path between the remaining M-1 input terminals and the output terminal of the first optical switch 11, so that the optical signal transmitted through the emitting lens 31i of the i-th emitting channel is split by the first optical splitter 12 and transmitted to the optical power meter 4 and the ring flux tester 5 respectively.

[0153] Step S202: Obtain the transmitted optical power of the i-th transmission channel detected by the optical power meter 4, and the ring flux of the i-th transmission channel detected by the ring flux meter 5;

[0154] Where i = 1, 2, ..., M, step S201 is a refinement of step S101, and step S202 is a refinement of step S102.

[0155] In application, the first optical switch has M input terminals and one output terminal. Under the control of the control device, it can select to connect one optical path between the input terminal and the output terminal and disconnect the optical paths between the remaining M-1 input terminals and the output terminal each time. The first optical splitter is a 1×2 optical splitter with one input terminal and two output terminals, used to split the optical signal input at the input terminal into two beams and output them through the two output terminals.

[0156] In applications, based on Figure 2The structure of the optical switch module shown requires the control device to be electrically connected to the lasers of M emission channels during the first test. Then, it controls the laser of one emission channel (defined as the target emission channel) to emit optical signals each time, and connects the optical path between the corresponding input terminal (i.e., the input terminal physically connected to the emission lens of the target emission channel) and the output terminal of the first optical switch, while disconnecting the optical paths between the remaining M-1 input terminals and the output terminals. This allows the optical signal passing through the emission lens of the target emission channel to be split by the first optical splitter and transmitted to the optical power meter and the ring flux meter respectively, so as to detect the emitted optical power and ring flux of the target emission channel. By performing this test M times, the emitted optical power and ring flux of the M emission channels can be obtained.

[0157] based on Figure 3 The optical module testing coupling system shown can simultaneously detect the transmit optical power and ring flux of one transmit channel at a time when used to test the transmit optical power and ring flux of a multimode optical module. This effectively improves testing efficiency. The control device only needs to perform M optical path switching operations on the optical switch module based on the same optical path switching logic to obtain the transmit optical power and ring flux of M transmit channels. The logic calculation is simple and easy to implement. When applied to unpackaged multimode optical modules, it can effectively reduce the probability of rework due to poor performance after the multimode optical module is packaged, thereby improving production efficiency and yield.

[0158] like Figure 4 As shown, based on Figure 1 The structure of the optical module test coupling system shown is such that, in one embodiment, the optical switch module 1 includes a second optical switch 13;

[0159] The controlled end of the second optical switch 13 is electrically connected to the control device 2;

[0160] During the first test, the second optical switch 13 was configured as follows:

[0161] The M input terminals of the second optical switch 13 are physically connected to the emission lenses 311 to 31M of the M emission channels respectively. The first output terminal of the second optical switch 13 is physically connected to one input terminal of the optical power meter 4. The second output terminal of the second optical switch 13 is physically connected to the input terminal of the ring flux meter 5.

[0162] During the first test, control device 2 was specifically configured as follows:

[0163] Electrically connected to lasers 321-32M with M emission channels; and

[0164] Perform the first optical module test method, which specifically includes the following steps S300 to S302:

[0165] Step S300: Control the lasers 32i and 32j of the i-th and j-th emission channels to emit optical signals;

[0166] Step S301: Connect the optical path between the i-th input terminal and the first output terminal and the optical path between the j-th input terminal and the second output terminal of the second optical switch 13, and disconnect the optical paths between the remaining M-2 input terminals of the second optical switch 13 and the first and second output terminals, so that the optical signal transmitted through the emitting lens 31i of the i-th emission channel is transmitted to the optical power meter 4 and the optical signal transmitted through the emitting lens 31j of the j-th emission channel is transmitted to the ring flux tester 5.

[0167] Step S302: Obtain the transmitted optical power of the i-th transmission channel detected by the optical power meter 4, and the ring flux of the j-th transmission channel detected by the ring flux meter 5;

[0168] Where i = 1, 2, ..., M, j = 1, 2, ..., M, i ≠ j, M ≥ 2, step S301 is a refinement of step S101, and step S302 is a refinement of step S102.

[0169] In application, the second optical switch has M input terminals and two output terminals. Under the control of the control device, it can select and connect the optical paths corresponding to the two input terminals and the two output terminals each time, and disconnect the optical paths between the remaining M-2 input terminals and the two output terminals.

[0170] In applications, based on Figure 3 The structure of the optical switch module shown requires the control device to be electrically connected to the lasers of M emission channels during the first test. Then, each time, it controls two emission channels (defined as the first target emission channel and the second target emission channel) to emit optical signals, and connects the corresponding two input terminals (i.e., the two input terminals physically connected to the emission lenses of the first and second target emission channels, respectively) to the two output terminals of the first optical switch, disconnecting the optical paths between the remaining M-2 input terminals and the two output terminals. This allows the optical signal passing through the emission lens of the first target emission channel to be transmitted to the optical power meter, and the optical signal passing through the emission lens of the second target emission channel to be transmitted to the ring flux meter, thereby detecting the emitted optical power of the first target emission channel and the ring flux of the second target emission channel. By performing this test M times, the emitted optical power and ring flux of the M emission channels can be obtained.

[0171] based on Figure 4The optical module testing coupling system shown can simultaneously detect the transmitted optical power and ring flux of one transmission channel and another transmission channel at a time when it is used to test the transmitted optical power and ring flux of the transmission channels of multimode multichannel optical modules. This can effectively improve testing efficiency. The control device only needs to perform M optical path switching operations on the optical switch module based on the same optical path switching logic to obtain the transmitted optical power and ring flux of M transmission channels. The logic calculation is simple and easy to implement. When applied to unpackaged multimode multichannel optical modules, it can effectively reduce the probability of rework due to poor performance after the multimode multichannel optical module is packaged, thereby improving production efficiency and yield.

[0172] like Figure 5 As shown, based on Figure 1 The structure of the optical module test coupling system shown is such that, in one embodiment, the optical switch module 1 includes a third optical switch 14;

[0173] The third optical switch 14 is electrically connected to the control device 2;

[0174] During the first test, the third optical switch 14 was configured as follows:

[0175] The M input terminals of the third optical switch 14 are physically connected to the emission lenses 311 to 31M of the M emission channels, respectively. The first to the Mth output terminals of the third optical switch 14 are physically connected to the first to the Mth input terminals of the optical power meter 4, respectively. The M+1th output terminal of the third optical switch 14 is physically connected to the input terminal of the ring flux meter 5.

[0176] During the first test, the control device 2 is configured to execute a first optical module test method, which specifically includes the following steps S401 and S402:

[0177] Step S401: Connect the optical path between the i-th input terminal and the M+1-th output terminal of the third optical switch 14 and the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals, so that the optical signal transmitted through the emitting lens 31i of the i-th emission channel is transmitted to the ring flux tester 5, and the optical signals transmitted through the emitting lenses of the remaining M-1 emission channels are transmitted one-to-one to the M-1 input terminals of the optical power meter 4.

[0178] Step S402: Obtain the ring flux of the i-th transmission channel detected by the ring flux tester 5, and the transmitted optical power of the remaining M-1 transmission channels detected by the optical power meter 4;

[0179] Where i = 1, 2, ..., M, M ≥ 2, step S401 is a refinement of step S101, and step S402 is a refinement of step S102.

[0180] In application, the third optical switch has M input terminals and M+1 output terminals. Under the control of the control device, it can select and connect the optical path between one of the input terminals and the M+1th output terminal, as well as the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals each time.

[0181] In applications, based on Figure 4 The structure of the optical switch module shown allows the control device to be electrically connected to the lasers of the M emission channels during the first test. This allows the control device to control all M emission channels to emit optical signals. Alternatively, the control device can be disconnected from the M emission channels, allowing the user to manually control all M emission channels to emit optical signals. Each time, the control device selects and connects the optical path between one input terminal (defined as the target input terminal) of the third optical switch and the (M+1)th output terminal, as well as the optical paths between the remaining M-1 input terminals and their corresponding M-1 output terminals. This ensures that the optical signal passing through the emission lens of the target emission channel (i.e., the emission channel physically connected to the target input terminal) is transmitted to the ring flux meter, and the optical signals passing through the emission lenses of the remaining M-1 emission channels are transmitted one-to-one to the M-1 input terminals of the optical power meter to detect the ring flux of the target emission channel and the emitted optical power of the remaining M-1 emission channels. This process is repeated M times to obtain the emitted optical power and ring flux of the M emission channels. Each emission channel is tested for emitted optical power M-1 times and ring flux once.

[0182] based on Figure 5 The optical module testing coupling system shown is designed to simultaneously test the ring throughput of one transmission channel and the transmission power and ring throughput of the remaining transmission channels of a multimode multichannel optical module. This significantly improves testing efficiency. The control device only needs to perform M optical path switching operations on the optical switch module based on the same optical path switching logic to obtain the transmission power and ring throughput of M transmission channels. The logic calculation is simple and easy to implement. When applied to unpackaged multimode multichannel optical modules, it can effectively reduce the probability of rework due to poor performance after packaging, thereby improving production efficiency and yield.

[0183] like Figure 6 As shown, based on Figure 1 The structure of the optical module test coupling system shown in one embodiment includes an optical switch module 1 comprising a fourth optical switch 15 and a second optical splitter 16.

[0184] The fourth optical switch 15 is electrically connected to the control device 2, and the (M+1)th output terminal of the fourth optical switch 15 is physically connected to the input terminal of the second optical splitter 16.

[0185] During the first test, the fourth optical switch 15 was configured as follows:

[0186] The M input terminals of the fourth optical switch 15 are physically connected to the emission lenses 311 to 31M of the M emission channels, respectively, and the 1st to Mth output terminals of the fourth optical switch 15 are physically connected to the 1st to Mth input terminals of the optical power meter 4, respectively.

[0187] During the first test, the second optical splitter 16 was configured as follows:

[0188] The first output terminal of the second optical splitter 16 is physically connected to the (M+1)th input terminal of the optical power meter 4, and the second output terminal of the second optical splitter 16 is physically connected to the input terminal of the ring flux meter 5.

[0189] During the first test, the control device 2 is configured to execute a first optical module test method, which specifically includes the following steps S501 and S502:

[0190] Step S501: Connect the optical path between the i-th input terminal and the M+1-th output terminal of the fourth optical switch 15 and the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals, so that the optical signal passing through the emitting lens 31i of the i-th emitting channel is split by the second optical splitter 16 and transmitted to the M+1-th input terminal of the optical power meter 4 and the ring flux meter 5 respectively; the optical signals passing through the emitting lenses of the remaining M-1 emitting channels are transmitted one-to-one to the M-1 input terminals of the optical power meter 4.

[0191] Step S502: Obtain the transmitted optical power of the M transmission channels detected by the optical power meter 4, and the ring flux of the i-th transmission channel detected by the ring flux meter 5;

[0192] Where i = 1, 2, ..., M, M ≥ 2, step S501 is a refinement of step S101, and step S502 is a refinement of step S102.

[0193] In application, the fourth optical switch has M input terminals and M+1 output terminals. Under the control of the control device, it can selectively connect the optical path between one of the input terminals and the M+1th output terminal, as well as the optical paths between the remaining M-1 input terminals and their corresponding M-1 output terminals. The second optical splitter is a 1×2 optical splitter with one input terminal and two output terminals, used to split the optical signal input at the input terminal into two beams and output them through the two output terminals.

[0194] In applications, based on Figure 5 The structure of the optical switch module shown allows the control device to be electrically connected to the lasers of the M emission channels during the first test. This enables all M emission channels to emit optical signals. Alternatively, the control device can be disconnected from the M emission channels, allowing the user to manually control all M emission channels to emit optical signals. Each time, the control device selects and connects the optical path between one input terminal (defined as the target input terminal) of the fourth optical switch and the (M+1)th output terminal, as well as the optical paths between the remaining M-1 input terminals and their corresponding M-1 output terminals. This allows the light to pass through the target emission channel (i.e., the optical path between the target input terminal and the (M+1)th output terminal). The optical signal from the transmitting lens of the transmitting channel (physically connected to the target input terminal) is split by the second optical splitter and transmitted to the (M+1)th input terminal of the optical power meter and the ring flux meter, respectively. The optical signals from the transmitting lenses of the remaining M-1 transmitting channels are transmitted one-to-one to the M-1 input terminals of the optical power meter to detect the transmitted optical power and ring flux of the target transmitting channel and the transmitted optical power of the remaining M-1 transmitting channels. This detection is performed M times to obtain the transmitted optical power and ring flux of the M transmitting channels. Each transmitting channel is tested for transmitted optical power M times and ring flux once.

[0195] based on Figure 6 The optical module testing coupling system shown is designed to simultaneously test the ring flux of one transmission channel and the transmission power and ring flux of the remaining transmission channels of a multimode multichannel optical module. This significantly improves testing efficiency. The control device only needs to perform M optical path switching operations on the optical switch module based on the same optical path switching logic to obtain the transmission power and ring flux of M transmission channels. The logic calculation is simple and easy to implement. When applied to unpackaged multimode multichannel optical modules, it can effectively reduce the probability of rework due to poor performance after packaging, thereby improving production efficiency and yield.

[0196] like Figure 7 As shown, in one embodiment, M≥2, the first optical module 3 is not encapsulated, and the emitting lenses 311 to 31M of the M emitting channels are integrated.

[0197] based on Figure 1 The structure of the optical module test coupling system and the first test process are shown. During the first coupling debugging process, the control device 2 is also configured as follows:

[0198] Electrically connected to displacement system 6; and

[0199] Execute the first optical module coupling debugging method, such as... Figure 8As shown, this method, based on the first optical module testing method, further includes the following steps S601 and S602:

[0200] Step S601: Based on the emitted optical power of the first and Mth emission channels respectively, control the displacement system 6 to adjust the position of the emission lenses 311-31M of the M emission channels relative to the lasers 321-32M, so as to maximize the emitted optical power of the first and Mth emission channels.

[0201] Step S602: If the transmitted optical power of the first and Mth transmission channels is at its maximum, and the transmitted optical power of the remaining transmission channels is qualified, then output a coupling debugging result indicating that the transmitted optical power of the M transmission channels is qualified; otherwise, output a coupling debugging result indicating that the transmitted optical power of the remaining transmission channels is unqualified.

[0202] In application, the displacement system is a three-dimensional displacement system, which can move the emitting lenses of all emitting channels of the first optical module as a whole in three-dimensional space under the control of the control device.

[0203] In applications, when the transmitting lenses of M transmitting channels are integrated, in order to achieve rapid alignment between the M transmitting lenses and the corresponding M lasers, theoretically, it is only necessary to control the displacement system to adjust the position of the transmitting lenses of the M transmitting channels relative to the lasers according to the transmitted optical power of the 1st and Mth transmitting channels, so that the transmitted optical power of the 1st and Mth transmitting channels is maximized, thus ensuring that the transmitted optical power of the M transmitting channels meets the design requirements of the multimode multichannel optical module protocol. If the transmitted optical power of the first and Mth transmission channels is at its maximum, and the transmitted optical power of the remaining transmission channels is qualified, then the coupling debugging result is output, indicating that the transmitted optical power of the M transmission channels is qualified (i.e., meets the design requirements of the multimode multichannel optical module protocol). Otherwise, the coupling debugging result is output, indicating that the transmitted optical power of the remaining transmission channels is unqualified, suggesting that the first optical module may have problems such as material contamination or damage, defects in the preceding process (e.g., failure to detect defects in the gold wire bonding process during chip on board (COB)), or poor coupling (e.g., defective optical fiber or improper connection during testing).

[0204] In applications, the coupling debugging results can be output in any output mode supported by the control device according to actual needs, such as displaying them in the form of text, graphics, images or charts, or broadcasting them by voice.

[0205] based on Figure 7The optical module testing coupling system shown can effectively reduce the probability of rework due to poor performance after the multimode multichannel optical module is packaged when it is used to couple and debug the transmission channels of unpackaged multimode multichannel optical modules. This improves production efficiency and yield. Furthermore, since the position of the transmitting lens of all transmission channels relative to the laser is adjusted by controlling the displacement system according to the transmitted optical power of the two transmission channels, the transmitted optical power of all transmission channels can meet the design requirements of the multimode multichannel optical module protocol, resulting in high coupling and debugging efficiency.

[0206] like Figure 9 and Figure 10 As shown, based on Figure 7 The structure of the optical module test coupling system shown includes the following steps S701 to S706 during the first coupling debugging process:

[0207] Step S701: Based on the emitted optical power of the first emission channel, control the displacement system to translate the emission lenses 311 to 31M of M emission channels in the first coordinate system XYZ, and obtain the first position (X1, Y1, Z1) of the emission lens 311 of the first emission channel when the emitted optical power of the first emission channel is maximum, and the first initial position (X1, Y1, Z1) of the emission lenses 311 to 31M of the M emission channels. 01 ,Y 01 ,Z1).

[0208] In application, the first coordinate system is a Cartesian coordinate system with the Z-axis direction parallel to the principal optical axis of the emission lenses of the M emission channels. Specifically, it can be a displacement system coordinate system with the origin of the displacement system as the coordinate origin. The control device can control the displacement system to translate the emitting lenses of all emitting channels of the first optical module along the X-axis, Y-axis or Z-axis in the first coordinate system according to the first preset path. During the movement, the optical power of the first emitting channel at each different position on the first preset path is acquired and recorded by the optical power meter until the number of samples of the emitting optical power of the first emitting channel at each different position reaches the first preset number of samples, or until no new maximum emitting optical power appears in the emitting optical power of the first emitting channel at each different position. Based on the emitting optical power of the first emitting channel at different positions, a first position-emitting optical power table or a first position-emitting optical power curve that can reflect the correspondence between the position and emitting optical power of the first emitting channel is generated. Then, based on the first position-emitting optical power table or the first position-emitting optical power curve, the first position of the emitting lens of the first emitting channel when the emitting optical power of the first emitting channel is maximum and the first initial position of the emitting lenses of the M emitting channels are determined.

[0209] Figure 9 In the light gray first optical module shown, the position of the emitting lens 311 is the first position (X1, Y1, Z1).

[0210] Step S702: Based on the emitted optical power of the Mth emission channel, control the displacement system to translate or rotate the emission lenses 311 to 31M of the Mth emission channels in the XY coordinate plane of the first coordinate system XYZ, and obtain the second position (X2, Y2, Z1) of the emission lens 31M of the Mth emission channel when the emitted optical power of the Mth emission channel is at its maximum.

[0211] In application, the control device can control the displacement system to translate the emitting lenses of all emitting channels of the first optical module along a second preset path in the XY coordinate plane of the first coordinate system. During the translation process, the optical power of the Mth emitting channel at each different position on the second preset path is acquired and recorded by an optical power meter until the number of recorded samples of the optical power of the Mth emitting channel at each different position reaches the second preset sample number, or until no new maximum optical power is found in the recorded optical power of the Mth emitting channel at each different position; or, the control device can control the displacement system in the XY coordinate plane of the first coordinate system. Within a preset angle range on the plane, rotate the emission lenses of all emission channels of the first optical module, and during the rotation, acquire and record the emission optical power of the Mth emission channel at each position corresponding to different angles using an optical power meter; based on the recorded emission optical power of the Mth emission channel at different positions, generate a second position-emission optical power table or a second position-emission optical power curve that reflects the correspondence between the position and emission optical power of the Mth emission channel; then, based on the second position-emission optical power table or the second position-emission optical power curve, determine the second position of the emission lens of the Mth emission channel when the emission optical power of the Mth emission channel is at its maximum.

[0212] Figure 9 In the dark gray first optical module shown, the position of the emitting lens 31M is the second position (X2, Y2, Z1).

[0213] Step S703: Based on the trigonometric function, the first position (X1,Y1,Z1) and the second position (X2,Y2,Z1), obtain the first angle θ1 between the emission lenses 311 to 31M of the M emission channels and the lasers 321 to 32M in the XY coordinate plane of the first coordinate system XYZ.

[0214] In applications, when the trigonometric function is the tangent trigonometric function, the formula for calculating the first included angle θ1 is:

[0215]

[0216] When the trigonometric functions are cotangent trigonometric functions, the formula for calculating the first included angle θ1 is:

[0217]

[0218] When the trigonometric functions are sine trigonometric functions, the formula for calculating the first included angle θ1 is:

[0219]

[0220] When the trigonometric functions are cosine trigonometric functions, the formula for calculating the first included angle θ1 is:

[0221]

[0222] D1 represents the distance between two adjacent transmission channels.

[0223] Step S704: The control displacement system translates the emission lenses 311 to 31M of the M emission channels to the first initial position (XY) in the XY coordinate plane of the first coordinate system XYZ. 01 ,Y 01 The emission lenses of the M emission channels 311 to 31M are rotated by a first included angle θ1 with the first position (X1,Y1,Z1) as the rotation center, so as to maximize the emission power of the first emission channel and the Mth emission channel.

[0224] In the application, when the emitting lenses of the M emitting channels are translated to the first initial position, the first emitting lens is located in the first position. Rotating the emitting lenses of all emitting channels by the first position as the rotation center is to make the emitting lens of the Mth emitting channel located in the second position when the first emitting lens is located in the first position. At this time, the emitted light power of the first emitting channel and the Mth emitting channel is at the maximum at the current Z-axis coordinate position.

[0225] Figure 9 In the black first optical module shown, the positions of the first emitting lens 311 and the Mth emitting lens 31M are the positions where the emitted light power of both is at its maximum at the current Z-axis coordinate position.

[0226] Step S705: Control the displacement system to translate the emitting lenses 311 to 31M of the M emitting channels along the Z-axis direction parallel to the first coordinate system XYZ, and obtain the third position (X3,Y3,Z2) of the emitting lens 31M of the M emitting channel when the emitted optical power parameter of the M emitting channel is at its maximum.

[0227] In the application, while ensuring that the emitted optical power of the first and Mth emission channels is maximized at their current Z-axis coordinate positions, the emission lenses of all emission channels are continuously translated along the Z-axis. During the translation, the emitted optical power of the Mth emission channel at each different position along the Z-axis is acquired and recorded using an optical power meter until the number of recorded samples of the emitted optical power of the Mth emission channel at each different position reaches a third preset sample number, or until no new maximum emitted optical power appears in the recorded emitted optical power of the Mth emission channel at each different position. Based on the recorded emitted optical power of the Mth emission channel at different positions, a third position-emitted optical power table or a third position-emitted optical power curve is generated that reflects the correspondence between the position and emitted optical power of the Mth emission channel. Then, based on the third position-emitted optical power table or the third position-emitted optical power curve, the third position of the emission lens of the Mth emission channel when the emitted optical power of the Mth emission channel is maximized is determined.

[0228] Step S706: The control displacement system translates the emission lens 31M of the Mth emission channel to the third position (X3,Y3,Z2) along the Z-axis direction parallel to the first coordinate system XYZ.

[0229] In application, steps S701 to S706 are refinements of step S601. Since all emitting lenses are integrated, translating the emitting lens of the Mth emitting channel to the third position means translating all emitting lenses along the Z-axis direction to the Z-axis coordinate position of the third position. At this time, theoretically, the emitted optical power of all emitting channels meets the design requirements of the multimode multichannel optical module.

[0230] In one embodiment, during the execution of the first optical module testing method and the first optical module coupling debugging method, the control device is further configured to perform the following steps:

[0231] The transmitted optical power of each transmission channel detected by the optical power meter is compensated based on the insertion loss of the optical switch module.

[0232] In applications, due to the insertion loss at the connection interface between the optical switch module and each transmission channel, the transmitted optical power of each transmission channel detected by the optical power meter needs to be compensated according to the insertion loss. The compensated transmitted optical power of each transmission channel is equal to the sum of the transmitted optical power detected by the optical power meter and the insertion loss.

[0233] based on Figure 10The first optical module coupling and debugging method shown is used in the process of coupling and debugging the transmission channels of an unencapsulated multimode multichannel optical module. When the optical module test coupling system is applied to the coupling and debugging of the transmission channels of an unencapsulated multimode multichannel optical module, it is only necessary to control the displacement system to adjust the position of the transmission lenses of all transmission channels relative to the laser according to the transmission optical power of the two transmission channels at both ends of the optical module. This ensures that the optical power of all transmission channels meets the design requirements of the multimode multichannel optical module protocol, and the coupling and debugging efficiency is high.

[0234] like Figure 11 As shown, based on Figure 7 The structure of the optical module testing coupling system shown includes the following steps S801 and S802 in the first optical module coupling debugging process executed by the control device:

[0235] Step S801: When the emitted optical power of the M emission channels is qualified, according to the annular flux of the 1st emission channel and the Mth emission channel, control the displacement system to adjust the position of the emission lens of the M emission channels relative to the laser so as to maximize the annular flux of the 1st emission channel and the Mth emission channel.

[0236] Step S802: If the ring flux of the first and Mth transmission channels is the maximum, and the ring flux of the remaining transmission channels is qualified, then output the coupling debugging result indicating that the ring flux of the M transmission channels is qualified; otherwise, output the coupling debugging result indicating that the ring flux of the remaining transmission channels is unqualified.

[0237] In applications, given that the annular flux of the M emission channels is acceptable, further improvements are made to the coupling accuracy between the M emission lenses and the corresponding M lasers, based on... Figure 6 and Figure 7 The corresponding embodiment operates on the same principle. Simply adjust the position of the transmitting lenses of the M transmitting channels relative to the laser by controlling the displacement system based on the annular flux of the first and M transmitting channels, respectively. This maximizes the annular flux of the first and M transmitting channels, ensuring that the optical power of all M transmitting channels meets the design requirements of the multimode multichannel optical module protocol. If the annular flux of the remaining transmitting channels is qualified when the annular flux of the first and M transmitting channels is maximized, a coupling debugging result indicating that the annular flux of the M transmitting channels is qualified (i.e., meets the design requirements of the multimode multichannel optical module protocol) is output. Otherwise, a coupling debugging result indicating that the annular flux of the remaining transmitting channels is unqualified is output, suggesting that the first optical module may have problems such as material contamination or damage, poor preceding processes, or poor coupling.

[0238] based on Figure 11The first optical module coupling debugging method shown further adjusts the position of the transmitting lens of all transmitting channels relative to the laser based on the annular flux of each of the two transmitting channels, after ensuring that the transmitted optical power of all transmitting channels is qualified. This ensures that the annular flux of all transmitting channels meets the design requirements of the multimode multichannel optical module protocol, thereby further improving coupling accuracy and achieving high coupling debugging efficiency.

[0239] like Figure 12 As shown, based on Figure 7 The structure of the optical module test coupling system shown includes the following steps S901 to S906 during the first coupling debugging process:

[0240] Step S901: If the emitted optical power of the M emission channels is within acceptable limits, based on the annular flux of the first emission channel, control the displacement system to translate the emission lenses of the M emission channels in the first coordinate system, obtaining the fourth position (X4, Y4, Z3) of the emission lens of the first emission channel when the annular flux of the first emission channel is maximum, and the second initial position (X...) of the emission lenses of the M emission channels. 02 ,Y 02 ,Z3).

[0241] In application, when the annular flux of all transmission channels is qualified, the control device can further control the displacement system to translate the transmitting lenses of all transmission channels of the first optical module along the X-axis, Y-axis or Z-axis in the first coordinate system according to the third preset path. During the movement, the annular flux of the first transmission channel at each different position on the first preset path is acquired and recorded by the annular flux tester until the number of recorded annular flux samples of the first transmission channel at each different position reaches the fourth preset sample number, or until no new maximum annular flux appears in the annular flux of the first transmission channel at each different position. Based on the recorded annular flux of the first transmission channel at different positions, a fourth position-annular flux table or a fourth position-annular flux curve that can reflect the correspondence between the position and annular flux of the first transmission channel is generated. Then, based on the fourth position-annular flux table or the fourth position-annular flux curve, the fourth position of the transmitting lens of the first transmission channel when the annular flux of the first transmission channel is maximum and the second initial position of the transmitting lenses of the M transmission channels are determined.

[0242] Step S902: Based on the annular flux of the Mth transmission channel, control the displacement system to translate or rotate the transmission lenses of the Mth transmission channels in the XY coordinate plane of the first coordinate system, and obtain the fifth position (X5, Y5, Z3) of the transmission lens of the Mth transmission channel when the annular flux of the Mth transmission channel is maximum.

[0243] In application, the control device can control the displacement system to translate the emitting lenses of all emitting channels of the first optical module along a fourth preset path in the XY coordinate plane of the first coordinate system. During the translation process, the circular flux of the Mth emitting channel at each different position on the fourth preset path is acquired and recorded by a circular flux tester until the number of recorded samples of the circular flux of the Mth emitting channel at each different position reaches a fifth preset number of samples, or until no new maximum circular flux appears in the recorded circular flux of the Mth emitting channel at each different position; or, the control device can control the displacement system in the XY coordinate plane of the first coordinate system. Within a preset angle range in the coordinate plane, rotate the emission lenses of all emission channels of the first optical module, and during the rotation, acquire and record the annular flux of the Mth emission channel at each position corresponding to different angles using an annular flux tester; based on the recorded annular flux of the Mth emission channel at different positions, generate a fifth position-annular flux table or a fifth position-annular flux curve that reflects the correspondence between the position and annular flux of the Mth emission channel; then, based on the fifth position-annular flux table or the fifth position-annular flux curve, determine the fifth position of the emission lens of the Mth emission channel when the annular flux of the Mth emission channel is at its maximum.

[0244] Step S903: Based on the trigonometric function, the fourth position (X4,Y4,Z3) and the fifth position (X5,Y5,Z3), obtain the second included angle θ1 of the emission lenses of the M emission channels relative to the laser in the XY coordinate plane of the first coordinate system.

[0245] In applications, when the trigonometric function is the tangent trigonometric function, the formula for calculating the first included angle θ2 is:

[0246]

[0247] When the trigonometric functions are cotangent trigonometric functions, the formula for calculating the first included angle θ2 is:

[0248]

[0249] When the trigonometric functions are sine trigonometric functions, the formula for calculating the first included angle θ2 is:

[0250]

[0251] When the trigonometric functions are cosine trigonometric functions, the formula for calculating the first included angle θ2 is:

[0252]

[0253] Where D represents the distance between two adjacent transmission channels.

[0254] Step S904: The control displacement system translates the emission lenses of the M emission channels to the second initial position in the XY coordinate plane of the first coordinate system, and rotates the emission lenses of the M emission channels by a second included angle with the fourth position as the rotation center, so as to maximize the annular flux of the first emission channel and the Mth emission channel.

[0255] In the application, when the emission lenses of the M emission channels are translated to the second initial position, the first emission lens is located in the fourth position. Rotating the emission lenses of all emission channels by a second included angle with the fourth position as the rotation center is to make the emission lens of the Mth emission channel located in the fifth position when the first emission lens is located in the fourth position. At this time, the annular flux of the first and Mth emission channels at the current Z-axis coordinate position is the maximum.

[0256] Step S905: Control the displacement system to translate the emission lenses of the emission channels by M distances along the Z-axis direction parallel to the first coordinate system, and obtain the sixth position (X6, Y6, Z4) of the emission lens of the Mth emission channel when the annular flux of the Mth emission channel is at its maximum.

[0257] In the application, while maximizing the annular flux of both the first and Mth transmission channels at their current Z-axis coordinate positions, the transmitting lenses of all transmission channels are continuously translated along the Z-axis. During this translation, the annular flux of the Mth transmission channel at each different position along the Z-axis is acquired and recorded using an annular flux tester until the number of recorded annular flux samples of the Mth transmission channel at each different position reaches a sixth preset sample number, or until no new maximum annular flux appears in the recorded annular flux of the Mth transmission channel at each different position. Based on the recorded annular flux of the Mth transmission channel at different positions, a sixth position-annular flux table or a sixth position-annular flux curve is generated that reflects the correspondence between the position and annular flux of the Mth transmission channel. Then, based on the sixth position-annular flux table or the sixth position-annular flux curve, the sixth position of the transmitting lens of the Mth transmission channel when the annular flux of the Mth transmission channel is maximized is determined.

[0258] Step S906: The control displacement system translates the emission lens 31M of the Mth emission channel to the sixth position (X6, Y6, Z4) along the Z-axis direction parallel to the first coordinate system XYZ.

[0259] In application, steps S901 to S906 are refinements of step S801. Since all emitting lenses are integrated, translating the emitting lens of the Mth emitting channel to the sixth position means translating all emitting lenses along the Z-axis to the Z-axis coordinate position of the sixth position. At this time, theoretically, the ring flux of all emitting channels meets the design requirements of the multimode multichannel optical module.

[0260] It should be understood that, Figures 1 to 12 The optical module test coupling system in the corresponding embodiment can also be used to test the transmitted optical power and ring throughput, as well as the coupling debugging, of other multimode optical modules with a total number of transmission channels of m. When m < M, it is only necessary to connect 1 to... Figure 12 In the corresponding embodiment, M is equivalent to m, and the (m+1)th to Mth input terminals of the optical switch module and the optical power meter can be left idle.

[0261] based on Figure 12 The first optical module coupling debugging method shown, under the condition that the emitted optical power of all the emitted channels of the multimode multichannel optical module is qualified, only needs to further adjust the position of the emitting lens of all the emitting channels relative to the laser by controlling the displacement system according to the annular flux of the two emitting channels at both ends of the optical module. This will make the annular flux of all the emitting channels meet the design requirements of the multimode multichannel optical module protocol, which can further improve the coupling accuracy and the coupling debugging efficiency.

[0262] like Figure 13 As shown, the connection relationship between the control device 2 and external devices is illustrated exemplaryly during the second test process of testing the optical power of the receiving channel of the second optical module 7.

[0263] Control device 2 is configured as follows:

[0264] Electrically connected to the built-in register 74 of the second optical module 7; and

[0265] Perform the second optical module test method, such as Figure 14 As shown, the method includes the following steps S1001 and S1002:

[0266] Step S1001: Obtain the reception parameters of the N receiving channels of the second optical module 7 from the built-in register 74;

[0267] Step S1002: Obtain the reception indicators of N receiving channels based on the receiving parameters;

[0268] The receiving parameters include at least one of the positive emitter-coupled logic levels and the received signal strength of the N receiving channels. The receiving indicators include at least one of the received optical power and the receiving sensitivity. The optical signal emitted by the light source device 8 is transmitted through the receiving lenses 711 to 71N (i.e., 711, 712, ..., 71N) of the N receiving channels to the photodetectors 721 to 72N (i.e., 721, 722, ..., 72N) of the corresponding receiving channels. The signal is amplified by the corresponding preamplifiers 731 to 73N (i.e., 731, 732, ..., 73N) to obtain the positive emitter-coupled logic level and stored in the built-in register 74, or the positive emitter-coupled logic level is processed into the received signal strength and stored in the built-in register 74.

[0269] In the application, N represents the total number of receiving channels of the second optical module, and N ≤ M. The second optical module can be a single-mode single-channel optical receiver module, a single-mode single-channel optical transceiver module, a multi-mode multi-channel optical receiver module, or a multi-mode multi-channel optical transceiver module. Among them, the multi-mode multi-channel optical transceiver module can be a 100G QSFP28 SR4 optical transceiver module with an optical signal transmission rate of 100Gbps. Figure 13 The example shows a second optical module 7 comprising receiving lenses 711-71N with N receiving channels, corresponding N photodetectors 721-72N, and corresponding N preamplifiers 731-73N. It should be understood that... Figure 13 The structure of the second optical module 7 shown is just an example of an optical module. In practical applications, it will inevitably include other physical structures or electrical components, such as functional circuits and interfaces.

[0270] In applications, the light source device can be turned on or off under the manual control of the user or the control device. When the light source device is turned on, it emits an optical signal to the corresponding receiving lens. The light source device can be a steady-state light source, such as a steady-state semiconductor laser (Laser Diode, LD). Specifically, when the second optical module is a multimode receiving module or a multimode transceiver module, the light source device can be a vertical-cavity surface-emitting laser with an operating wavelength of 850nm.

[0271] In application, since the optical power does not need to be measured by an optical power meter or a ring flux meter during the second test, the optical switch module, optical power meter, and ring flux meter are unnecessary. These components can be shut down manually by the user or under the control of a control device. The control device only needs to obtain the reception parameters of the N receiving channels of the second optical module from its built-in register and process them into reception indicators. When the optical module test coupling system only includes the optical switch module and the control device, the optical switch module is idle; when the optical module test coupling system includes the optical switch module, the control device, the optical power meter, and the ring flux meter, all of these components are idle.

[0272] In applications, the control device is electrically connected to the second optical module and the light source device via a communication interface and cables, where the cables can be serial buses. In applications, when N = M, Figures 1 to 12 The first optical module in the corresponding embodiment and Figure 13 In the corresponding embodiment, the second optical module can be the same multimode optical transceiver module. In this case, during the second test, the connection relationship between the optical switch module, optical power meter and ring flux tester and the first optical module and control device can remain unchanged.

[0273] based on Figure 13 The optical module test coupling system shown has a structure that, after completing the first test process or the first coupling debugging process, can also be applied to the second test process. When the first optical module and the second optical module are the same multimode optical transceiver module, it is only necessary to electrically connect the control device to the built-in register of the first optical module. There is no need to change the connection relationship between the optical module test coupling system and other devices, which can simplify the wiring process and thus improve the test efficiency.

[0274] like Figure 15 As shown, in one embodiment, N≥2, the second optical module 7 is not encapsulated, and the receiving lenses 711 to 71N of the N receiving channels are integrated.

[0275] based on Figure 13 The structure of the optical module test coupling system and the second test process are shown. During the second coupling debugging process, the control device 2 is also configured as follows:

[0276] Electrically connected to displacement system 6; and

[0277] Execute the second optical module coupling debugging method, such as Figure 16 As shown, this method, based on the second optical module testing method, further includes the following steps S1101 and S1102:

[0278] S1101. Based on the receiving parameters of the first receiving channel and the Nth receiving channel respectively, control the displacement system 6 to adjust the position of the receiving lenses 711 to 71N of the N receiving channels relative to the photodetector, so as to maximize the receiving parameters of the first receiving channel and the Nth receiving channel.

[0279] S1102. If the reception parameters of the first and Nth receiving channels are at their maximum, and the reception parameters of the remaining receiving channels are qualified, then output the coupling debugging result indicating that the reception parameters of the N receiving channels are qualified; otherwise, output the coupling debugging result indicating that the reception parameters of the remaining receiving channels are unqualified.

[0280] In applications, the displacement system can move the receiving lenses of all receiving channels of the second optical module as a whole in three-dimensional space under the control of the control device.

[0281] In applications, when the receiving lenses of N receiving channels are integrated, to achieve rapid alignment between the N receiving lenses and their corresponding N photodetectors, theoretically, it is only necessary to control the displacement system to adjust the positions of the receiving lenses of the N receiving channels relative to the photodetectors based on the receiving parameters of the first and Nth receiving channels, respectively, so that the receiving parameters of the first and Nth receiving channels are maximized. This ensures that the optical power of all N receiving channels meets the design requirements of the multimode multichannel optical module protocol. If the receiving parameters of the first and Nth receiving channels are maximized, and the receiving parameters of the remaining receiving channels are also qualified, then a coupling debugging result indicating that the receiving parameters of the N receiving channels are qualified (i.e., meeting the design requirements of the multichannel optical module protocol) is output. Otherwise, a coupling debugging result indicating that the receiving parameters of the remaining receiving channels are unqualified is output, suggesting that the second optical module may have problems such as material contamination or damage, defects in the preceding process (e.g., undetected defects in the gold wire bonding process during chip packaging), or poor coupling (e.g., defective fiber optic cable or improper connection during testing).

[0282] In applications, the coupling debugging results can be output in any output mode supported by the control device according to actual needs, such as displaying them in the form of text, graphics, images or charts, or broadcasting them by voice.

[0283] based on Figure 15The optical module test coupling system shown can effectively reduce the probability of rework due to poor performance after the multi-channel optical module is packaged when it is used to couple and debug the receiving channels of unpackaged multi-channel optical modules. This improves production efficiency and yield. Furthermore, since the receiving lens of all receiving channels can be adjusted relative to the photodetector by controlling the displacement system according to the receiving performance of the two receiving channels, the receiving performance of all receiving channels can meet the design requirements of the multi-channel optical module protocol, resulting in high coupling and debugging efficiency.

[0284] like Figure 17 As shown, based on Figure 15 The structure of the optical module test coupling system shown includes the following steps S1201 to S1206 during the second coupling debugging process:

[0285] S1201. Based on the receiving index of the first receiving channel, control the displacement system to translate the receiving lenses of N receiving channels in the second coordinate system X'Y'Z', and obtain the seventh position (X'7,Y'7,Z'7) of the receiving lens of the first receiving channel when the receiving index of the first receiving channel is at its maximum, and the third initial position (X'7,Y'7,Z'7) of the receiving lenses of the N receiving channels. 03 ,Y' 03 ,Z'7).

[0286] In application, the second coordinate system is a Cartesian coordinate system with the Z' axis direction parallel to the principal optical axis of the receiving lens of the N receiving channels. Specifically, it can be a displacement system coordinate system with the origin of the displacement system as the origin of the coordinate system. That is, the first coordinate system and the second coordinate system can be the same coordinate system. The control device can control the displacement system to translate the receiving lenses of all receiving channels of the second optical module along the X', Y', or Z' axis in the second coordinate system according to the fifth preset path. During the movement, the optical power meter acquires and records the receiving index of the first receiving channel at each different position on the fifth preset path until the number of samples of the receiving index of the first receiving channel at each different position reaches the seventh preset number of samples, or until no new maximum receiving index appears in the receiving index of the first receiving channel at each different position. Based on the recorded receiving index of the first receiving channel at different positions, a first position-receiving index table or a first position-receiving index curve is generated that reflects the correspondence between the position and the receiving index of the first receiving channel. Then, based on the first position-receiving index table or the first position-receiving index curve, the seventh position of the receiving lens of the first receiving channel when the receiving index of the first receiving channel is maximum and the third initial position of the receiving lenses of the N receiving channels are determined.

[0287] S1202. Based on the receiving index of the Nth receiving channel, control the displacement system to translate or rotate the receiving lens of the Nth receiving channel in the X'Y' coordinate plane of the second coordinate system X'Y'Z', and obtain the eighth position (X'8,Y'8,Z'7) of the receiving lens of the Nth receiving channel when the receiving index of the Nth receiving channel is at its maximum.

[0288] In application, the control device can control the displacement system to translate the receiving lenses of all receiving channels of the first optical module along a sixth preset path in the X'Y' coordinate plane of the second coordinate system. During the translation, the optical power meter acquires and records the receiving index of the Nth receiving channel at each different position on the sixth preset path until the number of samples of the receiving index of the Nth receiving channel at each different position reaches an eighth preset number of samples, or until no new maximum receiving index appears in the receiving index of the Nth receiving channel at each different position. Alternatively, the control device can control the displacement system to rotate the receiving lenses of all receiving channels of the first optical module within a preset angle range in the XY coordinate plane of the first coordinate system. During the rotation, the optical power meter acquires and records the receiving index of the Nth receiving channel at each position corresponding to a different angle. Based on the recorded receiving index of the Nth receiving channel at different positions, a second position-receiving index table or a second position-receiving index curve that reflects the correspondence between the position and the receiving index of the Nth receiving channel is generated. Then, based on the second position-receiving index table or the second position-receiving index curve, the second position of the receiving lens of the Nth receiving channel when the receiving index of the Nth receiving channel is maximum is determined.

[0289] S1203. Based on the trigonometric function, the seventh position (X'7,Y'7,Z'7) and the eighth position (X'8,Y'8,Z'7), obtain the third included angle θ3 of the receiving lenses of the N receiving channels relative to the photodetector in the X'Y' coordinate plane of the second coordinate system X'Y'Z'.

[0290] In applications, when the trigonometric function is the tangent trigonometric function, the formula for calculating the third included angle θ3 is:

[0291]

[0292] When the trigonometric functions are cotangent trigonometric functions, the formula for calculating the third included angle θ3 is:

[0293]

[0294] When the trigonometric functions are sine trigonometric functions, the formula for calculating the third included angle θ3 is:

[0295]

[0296] When the trigonometric functions are cosine trigonometric functions, the formula for calculating the third included angle θ3 is:

[0297]

[0298] Where D2 represents the distance between two adjacent receiving channels.

[0299] S1204, The control displacement system translates the receiving lenses of N receiving channels to the third initial position (X'Y'Z') in the X'Y' coordinate plane of the second coordinate system X'Y'Z'. 03 ,Y' 03 ,Z'7), and rotate the receiving lenses of the N receiving channels by the third included angle θ3 with the seventh position (X'7,Y'7,Z'7) as the rotation center, so as to maximize the receiving index of the first receiving channel and the Mth receiving channel.

[0300] In the application, when the receiving lenses of N receiving channels are translated to the third initial position, the first receiving lens is located at the seventh position. Rotating the receiving lenses of all receiving channels by the third included angle with the seventh position as the rotation center is to make the receiving lens of the Nth receiving channel located at the eighth position when the first receiving lens is located at the seventh position. At this time, the receiving index of the first receiving channel and the Nth receiving channel at the current Z' axis coordinate position is maximized.

[0301] S1205. The control displacement system translates the receiving lens of the receiving channel N times along the Z' axis direction parallel to the second coordinate system X'Y'Z', and obtains the ninth position (X'9,Y'9,Z'8) of the receiving lens of the Nth receiving channel when the receiving index parameter of the Nth receiving channel is at its maximum.

[0302] In the application, while maximizing the reception index of both the first and Nth receiving channels at their current Z-axis coordinate positions, the receiving lenses of all receiving channels are continuously translated along the Z-axis. During this translation, the reception index of the Nth receiving channel at each different position along the Z-axis is acquired and recorded using an optical power meter. This process continues until the number of recorded samples of the Nth receiving channel's reception index at each different position reaches a ninth preset sample number, or until no new maximum reception index appears in the recorded reception index of the Nth receiving channel at each different position. Based on the recorded reception index of the Nth receiving channel at different positions, a third position-reception index table or a third position-reception index curve is generated that reflects the correspondence between the position and reception index of the Nth receiving channel. Then, based on the third position-reception index table or the third position-reception index curve, the ninth position of the receiving lens of the Nth receiving channel when its reception index is maximized is determined.

[0303] S1206. The control displacement system translates the receiving lens of the Nth receiving channel to the ninth position (X'9,Y'9,Z'8) along the Z' axis direction parallel to the second coordinate system X'Y'Z'.

[0304] In application, steps S1201 to S1206 are refinements of step S1101. Since all receiving lenses are integrated, translating the receiving lens of the Nth receiving channel to the ninth position means translating all receiving lenses along the Z' axis to the Z' axis coordinate position of the ninth position. At this time, theoretically, the receiving performance of all receiving channels meets the design requirements of the multi-channel optical module.

[0305] In one embodiment, during the execution of the second optical module testing method and the second optical module coupling debugging method, the control device is further configured to perform the following steps:

[0306] The reception parameters of each receiving channel detected by the optical power meter are compensated based on the insertion loss of the optical switch module.

[0307] In applications, due to the insertion loss at the connection interface between the optical switch module and each receiving channel, the receiving index of each receiving channel detected by the optical power meter needs to be compensated according to the insertion loss. The compensated receiving index of each receiving channel is equal to the sum of the receiving index of each receiving channel detected by the optical power meter and the insertion loss.

[0308] based on Figure 17 The second optical module coupling and debugging method shown is used when the optical module test coupling system is applied to the coupling and debugging of the receiving channels of an unencapsulated multi-channel optical module. It only needs to control the displacement system to adjust the position of the receiving lens of all receiving channels relative to the laser according to the receiving indicators of the two receiving channels at both ends of the optical module. This will ensure that the receiving indicators of all receiving channels meet the design requirements of the multi-channel optical module protocol, resulting in high coupling and debugging efficiency.

[0309] In applications, the optical module test coupling system in the above embodiments may include, in addition to the optical switch module and control device, at least one of the following: optical power meter, ring flux meter, displacement system, light source device, power supply device, etc. The optical module test coupling system can be integrated or combined as a dedicated optical module test coupling platform for optical power testing, ring flux testing, receiving index testing and coupling debugging of optical modules, according to actual needs.

[0310] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0311] like Figure 18 As shown, the control device 2 provided in this embodiment of the invention includes: at least one processor 21 ( Figure 18 The diagram shows only one processor, memory 22, and computer program 23 stored in memory 22 and executable on at least one processor 21. When processor 21 executes computer program 23, it implements the steps in the above-described embodiments of the optical module test coupling methods.

[0312] In applications, the control device may include, but is not limited to, memory and processor. Those skilled in the art will understand that... Figure 18 This is merely an example of a control device and does not constitute a limitation on the control device. It may include more or fewer devices than illustrated, or combinations of certain devices, or different devices. For example, it may also include or be connected to input / output devices, network access devices, etc. Input / output devices may include cameras, audio acquisition / playback devices, display devices, keyboards, buttons, etc. Network access devices may include communication modules for communicating with other devices, allowing users to send control commands to the control device through other devices to control the operating status of the control device (e.g., remote control), thereby enabling the control device to selectively execute the steps in the various optical module test coupling method embodiments according to the user's control commands.

[0313] In applications, the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. General-purpose processors can be microprocessors or any conventional processor.

[0314] In applications, the memory may be an internal storage unit of the control device in some embodiments, such as the hard drive or RAM of the control device. In other embodiments, the memory may be an external storage device of the control device, such as a plug-in hard drive, Smart Media Card (SMC), Secure Digital (SD) card, Flash Card, etc., equipped on the control device. Furthermore, the memory may include both internal storage units and external storage devices of the control device. The memory is used to store operating systems, applications, bootloaders, data, and other programs, such as program code for computer programs. The memory can also be used to temporarily store data that has been output or will be output.

[0315] In applications, the communication module can be configured as any device capable of direct or indirect wired or wireless communication with other devices, depending on actual needs. For example, the communication module can provide solutions for communication on network devices, including communication interfaces such as Universal Serial Bus (USB), Local Area Networks (LAN), Wireless Local Area Networks (WLAN) (e.g., Wi-Fi), Bluetooth, Zigbee, mobile communication networks, Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), and Infrared (IR). The communication module can include an antenna, which can have a single element or be an antenna array with multiple elements. The communication module can receive electromagnetic waves through the antenna, frequency modulate and filter the electromagnetic wave signal, and send the processed signal to the processor. The communication module can also receive signals to be transmitted from the processor, frequency modulate and amplify them, and then convert them into electromagnetic waves for radiation via the antenna.

[0316] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of the present invention. For details on their specific functions and technical effects, please refer to the method embodiments section, which will not be repeated here.

[0317] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units is merely an example. In practical applications, the above functions can be assigned to different functional units as needed, that is, the internal structure of the device can be divided into different functional units to complete all or part of the functions described above. The functional units in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units are only for easy differentiation and are not intended to limit the scope of protection of this invention. The specific working process of the units in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0318] This invention also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the optical module testing coupling method of any of the above embodiments.

[0319] This invention also provides a computer program product that, when run on a control device, causes the control device to execute the optical module testing coupling method of any of the above embodiments.

[0320] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, all or part of the processes in the methods of the above embodiments of the present invention can be implemented by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include at least: any entity or device capable of carrying the computer program code to a control device, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium. Examples include USB flash drives, portable hard drives, magnetic disks, or optical disks.

[0321] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0322] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0323] In the embodiments provided by this invention, it should be understood that the disclosed apparatus, control device, and method can be implemented by other methods. For example, the apparatus and control device embodiments described above are merely illustrative. For instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, two or more units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0324] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention 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 spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An optical module testing coupling system, characterized in that, Includes optical switch module and control device; The optical switch module is electrically connected to the control device; During the first test, the optical switch module was configured as follows: The transmitting lenses, optical power meters, and ring flux meters of the M transmitting channels of the first optical module are physically connected. During the first test, the control device is configured to: Electrically connected to the optical power meter and the ring flux meter; The optical switch module controls the optical signals transmitted through the emission lenses of the M emission channels to the optical power meter and the ring flux meter, respectively. The emitted optical power of the M emission channels detected by the optical power meter and the annular flux of the M emission channels detected by the annular flux meter are obtained. Where M is the total number of transmission channels of the first optical module.

2. The optical module testing coupling system as described in claim 1, characterized in that, The optical switch module includes a first optical switch and a first optical splitter; The controlled end of the first optical switch is electrically connected to the control device, and the output end of the first optical switch is physically connected to the input end of the first optical splitter. During the first test, the first optical switch was configured as follows: The M input terminals of the first optical switch are physically connected to the emitting lenses of the M emitting channels one by one; During the first test, the first optical splitter was configured as follows: The first output terminal of the first optical splitter is physically connected to one input terminal of the optical power meter, and the second output terminal of the first optical splitter is physically connected to the input terminal of the ring flux meter. During the first test, the control device is specifically configured as follows: Electrically connected to the lasers of the M emission channels; Control the laser in the i-th emission channel to emit optical signals; The optical path between the i-th input terminal and the output terminal of the first optical switch is connected, and the optical path between the remaining M-1 input terminals and the output terminal of the first optical switch is disconnected, so that the light signal transmitted through the transmitting lens of the i-th transmitting channel is split by the first optical splitter and transmitted to the optical power meter and the ring flux tester respectively. The transmitted optical power of the i-th transmission channel detected by the optical power meter and the ring flux of the i-th transmission channel detected by the ring flux meter are obtained. Where i = 1, 2, ..., M.

3. The optical module testing coupling system as described in claim 1, characterized in that, The optical switch module includes a second optical switch; The controlled terminal of the second optical switch is electrically connected to the control device; During the first test, the second optical switch was configured as follows: The M input terminals of the second optical switch are physically connected to the emitting lenses of the M emitting channels one by one, the first output terminal of the second optical switch is physically connected to one input terminal of the optical power meter, and the second output terminal of the second optical switch is physically connected to the input terminal of the ring flux tester. During the first test, the control device is specifically configured as follows: Electrically connected to the lasers of the M emission channels; Control the lasers in the i-th and j-th emission channels to emit optical signals; The optical path between the i-th input terminal and the first output terminal and the optical path between the j-th input terminal and the second output terminal of the second optical switch are connected, and the optical paths between the remaining M-2 input terminals of the second optical switch and the first and second output terminals are disconnected, so that the light signal transmitted through the emitting lens of the i-th emitting channel is transmitted to the optical power meter and the light signal transmitted through the emitting lens of the j-th emitting channel is transmitted to the ring flux tester. The transmitted optical power of the i-th transmission channel detected by the optical power meter and the ring flux of the j-th transmission channel detected by the ring flux meter are obtained. Where i = 1, 2, ..., M, j = 1, 2, ..., M, i ≠ j, M ≥ 2.

4. The optical module testing coupling system as described in claim 1, characterized in that, The optical switch module includes a third optical switch; The third optical switch is electrically connected to the control device; During the first test, the third optical switch is configured as follows: The M input terminals of the third optical switch are physically connected to the emission lenses of the M emission channels one by one, the 1st to the Mth output terminals of the third optical switch are physically connected to the 1st to the Mth input terminals of the optical power meter one by one, and the M+1th output terminal of the third optical switch is physically connected to the input terminal of the ring flux tester. During the first test, the control device is specifically configured as follows: The optical path between the i-th input terminal and the M+1-th output terminal of the third optical switch and the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals are connected, so that the optical signal transmitted through the emitting lens of the i-th emitting channel is transmitted to the ring flux tester, and the optical signals transmitted through the emitting lenses of the remaining M-1 emitting channels are transmitted one-to-one to the M-1 input terminals of the optical power meter. The ring flux of the i-th transmission channel detected by the ring flux tester and the transmitted optical power of the remaining M-1 transmission channels detected by the optical power meter are obtained. Where i = 1, 2, ..., M, M ≥ 2.

5. The optical module testing coupling system as described in claim 1, characterized in that, The optical switch module includes a fourth optical switch and a second optical splitter; The fourth optical switch is electrically connected to the control device, and the (M+1)th output terminal of the fourth optical switch is physically connected to the input terminal of the second optical splitter. During the first test, the fourth optical switch is configured as follows: The M input terminals of the fourth optical switch are physically connected to the emitting lenses of the M emitting channels one by one, and the 1st to Mth output terminals of the fourth optical switch are physically connected to the 1st to Mth input terminals of the optical power meter one by one. During the first test, the second optical splitter was configured as follows: The first output terminal of the second optical splitter is physically connected to the (M+1)th input terminal of the optical power meter, and the second output terminal of the second optical splitter is physically connected to the input terminal of the ring flux meter. During the first test, the control device is specifically configured as follows: The optical path between the i-th input terminal and the M+1-th output terminal of the fourth optical switch and the optical path between the remaining M-1 input terminals and the corresponding M-1 output terminals are connected, so that the optical signal passing through the emitting lens of the i-th emitting channel is split by the second optical splitter and transmitted to the M+1-th input terminal of the optical power meter and the ring flux tester respectively, and the optical signals passing through the emitting lenses of the remaining M-1 emitting channels are transmitted to the M-1 input terminals of the optical power meter in a one-to-one correspondence; The emitted optical power of the M emission channels detected by the optical power meter and the ring flux of the i-th emission channel detected by the ring flux meter are obtained. Where i = 1, 2, ..., M, M ≥ 2.

6. The optical module testing coupling system as described in any one of claims 1 to 5, characterized in that, M≥2, the first optical module is not encapsulated, and the emission lenses of the M emission channels are integrated; Based on the first test process, during the first coupling debugging process, the control device is further configured to: Electrically connected to the displacement system; Based on the emitted optical power of the first and Mth emission channels respectively, the displacement system is controlled to adjust the position of the emission lenses of the M emission channels relative to the laser, so as to maximize the emitted optical power of the first and Mth emission channels; If the transmitted optical power of the first and Mth transmission channels is at its maximum, and the transmitted optical power of the remaining transmission channels is qualified, then a coupling debugging result indicating that the transmitted optical power of the M transmission channels is qualified is output. Otherwise, output a coupling debugging result indicating that the emitted optical power of the remaining transmission channels is unqualified.

7. The optical module test coupling system as described in claim 6, characterized in that, During the first coupling debugging process, the control device is specifically configured as follows: Based on the emitted light power of the first emission channel, the displacement system is controlled to translate the emission lenses of the M emission channels in the first coordinate system to obtain the first position of the emission lens of the first emission channel and the first initial position of the emission lenses of the M emission channels when the emitted light power of the first emission channel is at its maximum. Based on the emitted light power of the Mth emission channel, the displacement system is controlled to translate or rotate the emission lenses of the Mth emission channels in the XY coordinate plane of the first coordinate system to obtain the second position of the emission lens of the Mth emission channel when the emitted light power of the Mth emission channel is at its maximum. Based on trigonometric functions, the first position, and the second position, obtain the first included angle between the emission lenses of the M emission channels and the laser in the XY coordinate plane of the first coordinate system; The displacement system is controlled to translate the emission lenses of the M emission channels to the first initial position in the XY coordinate plane of the first coordinate system, and rotates the emission lenses of the M emission channels by the first included angle with the first position as the rotation center, so as to maximize the emission light power of the first emission channel and the Mth emission channel; The displacement system is controlled to translate the emitting lenses of the M emitting channels along the Z-axis direction parallel to the first coordinate system, and the third position of the emitting lens of the M emitting channel when the emitted optical power parameter of the M emitting channel is at its maximum is obtained; The displacement system is controlled to translate the emission lens of the Mth emission channel to the third position along the Z-axis direction parallel to the first coordinate system; The Z-axis of the first coordinate system is parallel to the principal optical axis of the emission lenses of the M emission channels.

8. The optical module testing coupling system as described in claim 6, characterized in that, During the first coupling debugging process, the control device is also configured to: When the emitted optical power of the M emission channels is qualified, the displacement system is controlled to adjust the position of the emission lenses of the M emission channels relative to the laser based on the annular flux of the first emission channel and the Mth emission channel, so as to maximize the annular flux of the first emission channel and the Mth emission channel; If the ring throughput of the first and Mth transmission channels is maximized, and the ring throughput of the remaining transmission channels is qualified, then a coupling debugging result indicating that the ring throughput of the M transmission channels is qualified is output. Otherwise, output a coupling debugging result indicating that the annular flux of the remaining transmission channels is unqualified.

9. The optical module testing coupling system as described in claim 8, characterized in that, During the first coupling debugging process, the control device is specifically configured as follows: When the emitted optical power of the M emission channels is qualified, the displacement system is controlled to translate the emission lenses of the M emission channels in the first coordinate system according to the annular flux of the first emission channel, so as to obtain the fourth position of the emission lens of the first emission channel when the annular flux of the first emission channel is maximum and the second initial position of the emission lenses of the M emission channels. Based on the annular flux of the Mth transmission channel, the displacement system is controlled to translate or rotate the transmission lenses of the Mth transmission channels in the XY coordinate plane of the first coordinate system to obtain the fifth position of the transmission lens of the Mth transmission channel when the annular flux of the Mth transmission channel is maximum. Based on the trigonometric function, the fourth position, and the fifth position, obtain the second included angle between the emission lenses of the M emission channels and the laser in the XY coordinate plane of the first coordinate system; The displacement system is controlled to translate the emission lenses of the M emission channels to the second initial position in the XY coordinate plane of the first coordinate system, and rotates the emission lenses of the M emission channels by the second included angle with the fourth position as the rotation center, so as to maximize the annular flux of the first emission channel and the Mth emission channel; The displacement system is controlled to translate the emission lenses of the M emission channels along the Z-axis direction parallel to the first coordinate system to obtain the sixth position of the emission lens of the Mth emission channel when the annular flux of the Mth emission channel is maximum. The displacement system is controlled to translate the emission lens of the Mth emission channel to the sixth position along the Z-axis direction parallel to the first coordinate system; The Z-axis of the first coordinate system is parallel to the principal optical axis of the emission lenses of the M emission channels.

10. The optical module test coupling system as described in any one of claims 1 to 5, characterized in that, During the second test, the control device was configured as follows: Electrically connected to the built-in register of the second optical module; Obtain the reception parameters of the N reception channels of the second optical module from the built-in register; The reception indicators of the N reception channels are obtained based on the reception parameters; The receiving parameters include at least one of the positive emitter coupling logic level and the received signal strength of the N receiving channels, and the receiving indicators include at least one of the received optical power and the receiving sensitivity, where N is the total number of receiving channels of the second optical module, and N≤M.

11. The optical module test coupling system as described in claim 10, characterized in that, N≥2, the second optical module is not encapsulated, and the receiving lenses of the N receiving channels are integrated; Based on the second test process, during the second coupling debugging process, the control device is further configured to: Electrically connected to the displacement system; Based on the reception parameters of the first and Nth receiving channels respectively, the displacement system is controlled to adjust the position of the receiving lenses of the N receiving channels relative to the photodetector, so as to maximize the reception parameters of the first and Nth receiving channels; If the reception index of the first receiving channel and the Nth receiving channel is maximized, and the reception index of the remaining receiving channels is qualified, then the coupling debugging result indicating that the reception index of the N receiving channels is qualified is output. Otherwise, output a coupling debugging result indicating that the reception index of the remaining receiving channel is unqualified.

12. The optical module test coupling system as described in claim 11, characterized in that, During the second coupling debugging process, the control device is specifically configured as follows: Based on the receiving index of the first receiving channel, the displacement system is controlled to translate the receiving lenses of the N receiving channels in the second coordinate system to obtain the seventh position of the receiving lens of the first receiving channel when the receiving index of the first receiving channel is at its maximum and the third initial position of the receiving lenses of the N receiving channels. Based on the receiving index of the Nth receiving channel, the displacement system is controlled to translate or rotate the receiving lenses of the Nth receiving channel in the XY coordinate plane of the second coordinate system to obtain the eighth position of the receiving lens of the Nth receiving channel when the receiving index of the Nth receiving channel is at its maximum. Based on the trigonometric functions, the seventh position, and the eighth position, obtain the third included angle between the receiving lenses of the N receiving channels and the photodetector in the XY coordinate plane of the second coordinate system; The displacement system is controlled to translate the receiving lenses of the N receiving channels to the third initial position in the XY coordinate plane of the second coordinate system, and rotates the receiving lenses of the N receiving channels by the third included angle with the seventh position as the rotation center, so as to maximize the emitted light power of the first receiving channel and the Nth receiving channel; The displacement system is controlled to translate the receiving lenses of the N receiving channels along the Z-axis direction parallel to the second coordinate system, and the ninth position of the receiving lens of the Nth receiving channel when the receiving index parameter of the Nth receiving channel is maximized is obtained. The displacement system is controlled to translate the receiving lens of the Nth receiving channel to the ninth position along the Z-axis direction parallel to the second coordinate system; Wherein, the Z-axis of the second coordinate system is parallel to the principal optical axis of the receiving lenses of the N receiving channels.

13. A method for testing coupling of an optical module, characterized in that, The control device applied to the optical module test coupling system according to any one of claims 1 to 12, the method comprising: The optical switch module controls the optical signals transmitted through the emission lenses of the M emission channels to the optical power meter and the ring flux meter, respectively. The emitted optical power of the M emission channels detected by the optical power meter and the annular flux of the M emission channels detected by the annular flux meter are obtained.

14. A control device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, It also includes input / output devices or devices electrically connected to input / output devices, wherein the processor, when executing the computer program, implements the steps of the optical module test coupling method as described in claim 13.

15. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the optical module test coupling method as described in claim 13.

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