Optical device testing device and control method thereof

Abstract

The present invention proposes an optical device test device and a control method thereof, wherein the present invention proposes an optical device test device, comprising an assembly structure, a test structure and a mounting plate; wherein the assembly structure and the test structure are both slidably assembled on the mounting plate, the assembly structure comprises a plurality of light emitting elements, the test structure comprises a plurality of light receiving elements, each light receiving element has a first motion trajectory and a second motion trajectory, the first motion trajectory is arranged on the output light path of the corresponding light emitting element, and the second motion trajectory is a circular path and is tangent to the output light path of the corresponding light emitting element. Each light receiving element moves along two motion trajectories to achieve synchronous detection of multiple light paths, which significantly improves the test efficiency. The first motion trajectory of the light receiving element ensures that it is aligned with the output light path of the corresponding light emitting element, while the second motion trajectory allows the light receiving element to capture light signals at different angles. The optimal signal reception angle is ensured to improve the measurement accuracy.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical detection, and in particular relates to an optical device testing device and a control method thereof. Background Art

[0002] MT-FA (Mechanical Transfer - Fiber Array) is a multi-core fiber array used in optical communications. It is usually used with MT connectors for high-density fiber connections. This product is widely used in data centers, optical communication networks, optical modules, and fiber optic sensors.

[0003] MT-FA can connect multiple optical fiber cores at the same time, and is suitable for scenarios that require a large number of optical fiber connections, such as high-speed transmission in data centers. In related technologies, in order to ensure that the polarity of each optical fiber in multiple optical fiber cores is correctly matched, each optical fiber core needs to be tested in turn, which results in a lengthy testing process, especially in large-scale production environments, which is inefficient. In addition, the test steps rely on manual adjustment and operation, which increases time consumption and operational complexity, and the lack of automation makes it difficult to improve test efficiency. Summary of the invention

[0004] The technical purpose of the present invention is to provide an optical device testing device and a control method thereof, aiming to solve the problems of reduced detection efficiency and poor accuracy.

[0005] To solve the above technical problems, the present invention is implemented as follows: an optical device testing device includes an assembly structure, a testing structure and a mounting plate; wherein:

[0006] The assembly structure and the test structure are both slidably assembled on the mounting plate, the assembly structure includes a plurality of light emitting elements, and the test structure includes a plurality of light receiving elements, each of the light receiving elements has a first motion trajectory and a second motion trajectory, the first motion trajectory is arranged on an outgoing light path of the corresponding light emitting element, and the second motion trajectory is a circular path and is tangent to the outgoing light path of the corresponding light emitting element.

[0007] In some embodiments of the present invention, a test slide rail is provided on the mounting plate, the test structure includes a rotating bracket, the light receiving element is mounted on the rotating bracket, the rotation trajectory of the rotating bracket is the second motion trajectory, and the extension path of the test slide rail is the first motion trajectory.

[0008] In some embodiments of the present invention, the rotating bracket includes a fixed part and a rotating part, the fixed part is slidably assembled on the test slide rail, the rotating part includes a first section and a second section, the first section is rotatably assembled on an end of the fixed part away from the test slide rail, the second section is equipped with the light receiving element, and an angle A is formed between an extension surface of the first section and an extension surface of the second section, and the angle A is 60~120°.

[0009] In some embodiments of the present invention, the fixing portion is arranged perpendicularly to the mounting plate, and angle measuring dials are respectively provided at both ends of the fixing portion connecting the first section and the mounting plate, and there is a rotation angle B between the extension line of the fixing portion and the extension line of the first section, and the rotation angle B is 0~180°.

[0010] In some embodiments of the present invention, the fixing portion is arranged vertically to the mounting plate, a micrometer is provided between the first section and the fixing portion, the micrometer is used to adjust the distance between the first section and the mounting plate, a guide rail assembly is provided between the fixing portion and the mounting plate, the guide rail assembly includes a first guide rail and a second guide rail, and the first guide rail and the second guide rail have a movement direction of approaching or moving away from each other.

[0011] In some embodiments of the present invention, the assembly structure includes a clamping part, the number of the clamping parts is the same as the number of the light receiving elements, the clamping part is provided with a through slot, the two ends of each through slot respectively correspond to a light receiving element and a light emitting element, and there is an angle C between two adjacent clamping parts, and the angle C is 0~90°.

[0012] The present invention further provides a control method, which is used to control the optical device testing device, and the steps of the control method include:

[0013] Select an optical fiber installed in the light emitting element to emit light;

[0014] Acquire a light spot image of the corresponding light receiving element;

[0015] Extracting the center coordinates of the light spot image;

[0016] Replace another light emitting element to execute the step of selecting a light emitting element to emit light, until all center coordinates are extracted to obtain a coordinate array;

[0017] Determining whether the coordinate array matches the arrangement positions of all the light emitting elements;

[0018] If so, the sequence pair information of the optical fibers installed in each of the optical emitting components is confirmed.

[0019] In some embodiments of the present invention, the step of extracting the center coordinates of the spot image includes:

[0020] Binarizing the spot image to obtain a black and white spot image;

[0021] Extracting the pixel block with the largest area in the black and white spot image;

[0022] The average value of all coordinates of the pixel block is calculated to obtain the center coordinate.

[0023] In some embodiments of the present invention, the step of determining whether the coordinate array matches the arrangement positions of all the light emitting elements further includes:

[0024] If not, confirm that there is a fiber leak in the optical fiber installed in each of the optical emitting components;

[0025] Mark the leaking fiber and replace it with a new one.

[0026] Compared with the prior art, the optical device testing device and control method thereof in the present invention have the following beneficial effects:

[0027] The present invention proposes an optical device testing device and a control method thereof, wherein the present invention proposes an optical device testing device, comprising an assembly structure, a test structure and a mounting plate; wherein the assembly structure and the test structure are both slidably assembled on the mounting plate, the assembly structure comprises a plurality of light emitting elements, the test structure comprises a plurality of light receiving elements, each light receiving element has a first motion trajectory and a second motion trajectory, the first motion trajectory is arranged on the output light path of the corresponding light emitting element, and the second motion trajectory is a circular path and is tangent to the output light path of the corresponding light emitting element.

[0028] The device can test multiple optical paths simultaneously through the combination of multiple optical transmitters and optical receivers. Each optical receiver moves along two motion trajectories (the first motion trajectory and the second motion trajectory) to achieve synchronous detection of multiple optical paths. This significantly improves the test efficiency, especially in the detection scenario of multi-channel optical fibers or optical devices. The first motion trajectory of the optical receiver ensures that it is aligned with the output optical path of the corresponding optical transmitter, while the second motion trajectory allows the optical receiver to capture optical signals at different angles. Through this design, the optical path can be accurately adjusted to ensure the optimal signal reception angle, reduce optical errors, and improve measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of an optical device testing device in one embodiment of the present invention;

[0030] Figure 2 yes Figure 1 A structural schematic diagram of a test structure of an optical device test device;

[0031] Figure 3 yes Figure 1 A schematic diagram of the structure of the assembly structure of the optical device testing device;

[0032] Figure 4 is an operation schematic diagram of a control method of an optical device testing apparatus according to an embodiment of the present invention;

[0033] Figure 5 is a schematic diagram of a coordinate array obtained by a control method of an optical device testing apparatus in one embodiment of the present invention;

[0034] Figure 6 It is a flowchart of a control method of an optical device testing apparatus in one embodiment of the present invention.

[0035] In the accompanying drawings, each reference numeral represents:

[0036] 100, optical device test device; 11, assembly structure; 111, clamping part; 112, light emitting element; 12, test structure; 121, rotating bracket; 1211, fixing part; 1212, rotating part; 1213, first section; 1214, second section; 1215, angle scale; 1216, micrometer; 122, light receiving element; 13, mounting plate; 131, test slide rail; 14, guide rail assembly; 141, first guide rail; 142, second guide rail; DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0038] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “circumferential”, “radial”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Please refer to Figures 1 to 3 The present invention proposes an optical device testing device 100, including an assembly structure 11, a test structure 12 and a mounting plate 13; wherein the assembly structure 11 and the test structure 12 are both slidably assembled on the mounting plate 13, the assembly structure 11 includes a plurality of light emitting elements 112, the test structure 12 includes a plurality of light receiving elements 122, each light receiving element 122 has a first motion trajectory and a second motion trajectory, the first motion trajectory is arranged on the output light path of the corresponding light emitting element 112, and the second motion trajectory is a circular path and is tangent to the output light path of the corresponding light emitting element 112.

[0041] The device can test multiple optical paths simultaneously by combining multiple optical transmitters 112 and optical receivers 122. Each optical receiver 122 moves along two motion trajectories (a first motion trajectory and a second motion trajectory) to achieve synchronous detection of multiple optical paths. This significantly improves the test efficiency, especially in the detection scenario of multi-channel optical fibers or optical devices.

[0042] The first motion trajectory of the light receiving element 122 ensures that it is aligned with the outgoing light path of the corresponding light emitting element 112, while the second motion trajectory (circular path) allows the light receiving element 122 to capture light signals at different angles. Through this design, the optical path can be accurately adjusted to ensure the best signal receiving angle, reduce optical errors, and improve measurement accuracy.

[0043] The second motion trajectory is a circular path and is tangent to the outgoing light path of the light emitting element 112, which enables the light receiving element 122 to detect outgoing light signals in multiple directions. This design can cover a wider range of light paths, allowing the device to adapt to a variety of different optical configuration requirements and improving the adaptability of the system.

[0044] Each light receiving element 122 has an independent motion track, which reduces the mutual interference between multiple light paths. This helps to ensure that the detection results of each light path are not affected by other light paths in complex light path testing, thereby improving the accuracy and reliability of detection.

[0045] The assembly structure 11 and the test structure 12 are both slidably assembled on the mounting plate 13, which is convenient for automatic adjustment and control. Through programming control, the alignment and detection process of multiple light emitting elements 112 and light receiving elements 122 can be quickly completed, which is suitable for application in an automatic test system.

[0046] A test rail 131 is disposed on the mounting plate 13 , and the test structure 12 includes a rotating bracket 121 , on which a light receiving element 122 is mounted. The rotating track of the rotating bracket 121 is the second motion track, and the extending path of the test rail 131 is the first motion track.

[0047] The setting of the test slide rail 131 allows the test structure 12 to move smoothly on the first motion trajectory, thereby achieving precise alignment of the light receiving element 122 and the light emitting element 112. The alignment adjustment of the light receiving element 122 can avoid the influence of mechanical errors and improve the accuracy of detection. The design of the rotating bracket 121 enables the light receiving element 122 to rotate and adjust the angle along the second motion trajectory. The second motion trajectory is a circular path tangent to the outgoing light path of the light emitting element 112. This design allows the light receiving element 122 to detect the intensity and characteristics of the light signal at different angles, thereby realizing all-round and multi-dimensional optical detection.

[0048] The combination of the rotating bracket 121 and the test slide rail 131 allows the light receiving element 122 to not only move on a plane, but also to be rotated and adjusted. This dual motion mechanism enhances the system's adaptability to different optical devices and test requirements, and can cope with complex optical device test scenarios. The flexibility of the rotating bracket 121 allows the light receiving element 122 to dynamically adjust its position and angle during the test process, effectively reducing the optical error caused by fixed angles or positions, and ensuring the accuracy and consistency of the test results.

[0049] By matching the test rail 131 with the rotating bracket 121, the optical path adjustment and detection can be completed quickly, greatly improving the detection efficiency. Especially when multi-angle analysis is required, the design can quickly switch the detection angle and position, reducing the debugging time.

[0050] The rotating bracket 121 includes a fixed portion 1211 and a rotating portion 1212. The fixed portion 1211 is slidably assembled on the test slide rail 131. The rotating portion 1212 includes a first section 1213 and a second section 1214. The first section 1213 is rotatably assembled on one end of the fixed portion 1211 away from the test slide rail 131. The second section 1214 is equipped with a light receiving element 122. An angle A is formed between the extension surface of the first section 1213 and the extension surface of the second section 1214, and the angle A is 60 to 120°. The range of the angle A is set to 60° to 120°, for example, it can be 70°, 90°, 120°, etc., so that the light receiving element 122 can receive the light signal at a suitable angle, covering a wider detection range. This design allows the light receiving element 122 to effectively capture the light signal when it is at a variety of angles with the light emitting element 112, thereby improving the comprehensiveness and flexibility of the detection.

[0051] If the angle is too small (less than 60°), the light receiving element 122 may be too close to the light emitting element 112, causing reflected light or scattered light to affect the detection accuracy. On the contrary, if the angle is too large (greater than 120°), the light receiving element 122 may deviate from the effective area of ​​the light path, resulting in reduced receiving efficiency.

[0052] The angle range provides a balance, ensuring the mechanical stability of the rotating part 1212 while providing sufficient adjustment space. If the angle is too small, the rotating part 1212 may not be structurally stable enough to maintain the precise position of the light receiving element 122. If the angle is too large, the rigidity of the structure may be insufficient, resulting in vibration or displacement during the detection process, affecting the measurement accuracy.

[0053] The angle range ensures that the detection surface of the light receiving element 122 can cover the main energy area of ​​the light beam. If the angle is less than 60°, the effective receiving area of ​​the light receiving element 122 may be insufficient, resulting in reduced detection efficiency of the light signal. If the angle is greater than 120°, the light receiving element 122 may be too dispersed and unable to concentrate on receiving the main part of the light beam, resulting in inaccurate detection results.

[0054] The fixing part 1211 is arranged perpendicularly to the mounting plate 13, and angle dials 1215 are respectively arranged at the two ends of the fixing part 1211 connecting the first section 1213 and the mounting plate 13, and there is a rotation angle B between the extension line of the fixing part 1211 and the extension line of the first section 1213, and the rotation angle B is 0-180°. The change of the rotation angle B can be accurately adjusted and recorded by the angle dial 1215. The rotation angle B controls the rotation angle of the first section 1213 relative to the fixing part 1211, thereby affecting the position of the light receiving element 122. This design allows the operator to accurately set the angle of the light receiving element 122 to ensure that the light receiving element 122 can best receive the outgoing light signal of the light emitting element 112.

[0055] The rotation angle B provides a wide angle adjustment range, so that the light receiving element 122 can cover a larger spatial range. By adjusting the rotation angle B, the light receiving element 122 can detect light signals from different directions and angles, which is particularly useful when it is necessary to detect light signals from multiple angles or directions.

[0056] The rotation angle allows the light receiving element 122 to be flexibly adjusted in various test scenarios. For example, when testing an optical fiber array, a laser device, or other optical components, the adjustment of different angles can meet various optical test requirements. This design improves the adaptability of the test device, enabling it to cope with a variety of optical test tasks.

[0057] The angle scale 1215 allows for fine adjustment of the rotation angle B, avoiding optical errors caused by inaccurate angles. The operator can accurately set the required detection angle to ensure that the light receiving element 122 is always in the best position, thereby improving the accuracy and reliability of the detection.

[0058] The fixing part 1211 is vertically arranged with the mounting plate 13, a micrometer 1216 is arranged between the first section 1213 and the fixing part 1211, and the micrometer 1216 is used to adjust the distance between the first section 1213 and the mounting plate 13, and a guide rail assembly 14 is arranged between the fixing part 1211 and the mounting plate 13, and the guide rail assembly 14 includes a first guide rail 141 and a second guide rail 142, and the first guide rail 141 and the second guide rail 142 have a movement direction of approaching or moving away from each other. Through the precision fine-tuning function of the micrometer 1216, the distance between the first section 1213 and the mounting plate 13 can be adjusted very accurately. This plays an important role in occasions where high-precision installation or positioning is required, ensuring the accuracy requirements of equipment or components at a specific distance.

[0059] The assembly structure 11 includes a clamping portion 111, the number of the clamping portions 111 is the same as the number of the light receiving elements 122, and a through slot is formed through the clamping portion 111. The two ends of each through slot correspond to a light receiving element 122 and a light emitting element 112 respectively. There is an angle C between two adjacent clamping portions 111, and the angle C is 0~90°.

[0060] The angle C between adjacent clamping parts 111 is adjustable between 0° and 90°, so that the light receiving element 122 and the light emitting element 112 can be arranged at a variety of different angles. This design provides flexibility for multi-light path configuration, and can adjust the arrangement of light paths according to specific test requirements, thereby achieving a more flexible test solution.

[0061] Optimization of through-slot design: The through-slot runs through the clamping portion 111 and connects the corresponding light receiving element 122 and light emitting element 112. This design ensures that the optical signal can be transmitted smoothly, and at the same time, through the combination of multiple clamping portions 111, effective management and allocation of multiple optical paths can be achieved. The adjustment of angle C further optimizes the arrangement and allocation of the optical path, making the optical path configuration more reasonable.

[0062] When the angle C is properly set, the mutual interference between adjacent optical paths can be effectively reduced. Especially in the case of multi-optical path testing, by adjusting the angle C, the cross interference of optical signals can be avoided, and the overall test accuracy and reliability can be improved.

[0063] The angle C ranges from 0° to 90°, which means that the light receiving element 122 and the light emitting element 112 can be adjusted according to different test requirements. For example, when it is necessary to detect optical signals in multiple directions, a larger angle setting can be selected, and when concentrated detection is required, a smaller angle setting can be selected. This design improves the adaptability of the test device and can meet the optical detection requirements in different scenarios.

[0064] Each clamping part 111 has the same structure, which is convenient for manufacturing and assembly. By adjusting the angle C between the clamping parts 111, multiple optical paths can be quickly configured, simplifying the debugging process of the system. At the same time, the through-slot design facilitates the rapid installation and adjustment of optical fibers or other optical components.

[0065] Embodiment 1:

[0066] Please refer to Figure 4 and Figure 5 The present invention also provides a control method for controlling an optical device testing device, the control method comprising the steps of:

[0067] An optical fiber installed in a light emitting element is selected to emit light.

[0068] By selecting the light emitters in sequence, each optical fiber can be independently emitted, which is convenient for subsequent analysis of the emission of each optical fiber and avoids interference with other light emitters. This helps to accurately locate the light emitter corresponding to the light spot and ensure the accuracy of the test process.

[0069] Acquire the light spot image of the corresponding light receiving element. The acquisition method is through the built-in camera in the light receiving element. By acquiring the light spot image of the light receiving element, the actual output position of the light emitted by the optical fiber can be obtained. This step ensures that the actual effect of the optical fiber emission can be analyzed in the subsequent processing process and provides basic data for further calculation of the center coordinates of the light spot.

[0070] Extract the center coordinates of the spot image.

[0071] Extracting the center coordinates of the light spot is the core step of quantitative analysis of the emitted light. By identifying the precise center of the light spot, the direction and position of the optical fiber emission can be determined to ensure the accurate correspondence between the optical fiber and the light receiving element. This improves the accuracy of the test and the accuracy of the optical fiber positioning.

[0072] Specifically, the extraction step includes:

[0073] The spot image is binarized to obtain a black and white spot image. Binarization simplifies the image into black and white, thereby highlighting the spot area, reducing noise interference, and facilitating subsequent image processing. This technical effect improves the efficiency and accuracy of image analysis and makes the extraction of center coordinates more accurate.

[0074] Extract the pixel block with the largest area in the black and white spot image. By extracting the pixel block with the largest area, the main area of ​​the light spot can be effectively identified, avoiding the interference of small area noise points in the calculation of the center coordinates, ensuring the accurate positioning of the center of the light spot, and further improving the accuracy of the analysis of the emitted light.

[0075] The center coordinates are obtained by averaging all the coordinates of the pixel block. The average value of all coordinates ensures the accurate positioning of the center position and avoids errors caused by image noise or local anomalies. This step greatly improves the accuracy of coordinate extraction and ensures the accurate correspondence between the optical fiber launch position and the optical receiver.

[0076] Replace another optical transmitter and execute the step of selecting an optical transmitter to emit light until all center coordinates are extracted to obtain a coordinate array. This step tests the optical fibers in all optical transmitters one by one through a cyclic operation, and records their center coordinates to form a complete coordinate array. This technical effect ensures that each optical fiber can be tested to avoid omissions, thereby improving the comprehensiveness and integrity of the overall test.

[0077] Determine whether the coordinate array matches the arrangement positions of all light emitting elements;

[0078] If so, the sequence pair information of the optical fibers installed in each optical emitting element is confirmed.

[0079] If not, confirm that there is fiber leakage in the optical fibers installed in each optical transmitter;

[0080] Mark the information of the leaky fiber and replace it with a new one. By judging the mismatch and marking the information of the leaky fiber, the assembly problem of the fiber can be discovered in time to avoid the impact of missing or incorrect assembly on subsequent use, and automatically prompt replacement. This process improves the automation and maintenance efficiency of the test device and ensures the high reliability of the device.

[0081] Embodiment 2:

[0082] Please refer to Figure 6 The present invention further provides a control method for controlling the optical device testing device 100. The control method comprises the following steps:

[0083] Step 201, set initial detection data, the initial detection data includes angle offset and phase. By setting the initial detection data, a starting point is provided for the entire detection process. This step ensures that the detection starts from a known and controllable state, so that subsequent detection and adjustment are based on orderly data.

[0084] Setting the initial data makes the test conditions uniform, reduces the errors caused by random initial states, and ensures the consistency and reliability of the test results.

[0085] Step 202: Determine whether the initial detection data meets the preset conditions, wherein the preset conditions include the polarity detection equation and the target loss value. If so, execute step 203; if not, execute step 204;

[0086] By presetting conditions, the system can automatically determine whether the current state meets the requirements. This reduces the error of manual judgment and improves the automation level of the detection process. The judgment function of this step ensures that only data that meets the conditions can enter the next step, thereby filtering out the detection data that does not meet the requirements and improving the accuracy of the detection.

[0087] Step 203: Complete the detection and record the data.

[0088] When the preset conditions are met, the system automatically records the test results. By saving the data, the system can use these results in subsequent analysis, thus forming a complete data chain for easy tracking and verification. When the test results meet the conditions, the operation is immediately terminated and the results are recorded, avoiding unnecessary repeated testing and saving time and resources.

[0089] Step 204: Dynamically adjust the initial detection data and execute step 201 again until the preset conditions are met.

[0090] This step allows the system to automatically adjust the initial test data according to the test results, and continuously approach the preset conditions. This dynamic adjustment mechanism helps to optimize system parameters and improve the success rate and accuracy of the final test. Through repeated adjustments and tests, a closed-loop control system is formed to ensure that the final results meet expectations. This automatic adjustment mechanism reduces manual intervention and improves the intelligence of the system.

[0091] Specifically, the polarity detection equation is:

[0092] ； in,

[0093] ；

[0094] ；

[0095] in, is the output optical power of the i-th optical fiber emitted by the optical emitting element 112, is the input optical power of the ith optical fiber received by the optical receiving element 122, is the transmission efficiency of the i-th optical fiber, is the polarization angle of the ith fiber, is the reference polarization angle of the ith fiber, is the maximum input optical power of the ith fiber, is the angular frequency of the ith fiber, is the phase of the ith fiber, is the base angle, is the angle offset of the i-th optical fiber; when the polarity detection equation is established, the preset condition is met.

[0096] This equation can be used to automatically detect whether the polarity of the optical fiber is correctly matched. With reference angle If matched, the output power will be delivered as expected; if not matched, the output power will be significantly reduced or disappear, which can quickly identify polarity errors.

[0097] By dynamically adjusting the polar angle and phase angle , the system can optimize polarity matching to ensure the precision and accuracy of the test.

[0098] By adjusting the rotation angle B, the angular offset of the light receiving element 122 can be controlled. Changing the rotation angle B can make the light receiving element 122 more accurately align with the optical fiber, thereby adjusting the angular offset To ensure that the polarity of the optical signal in the optical fiber is correctly matched. By precisely adjusting the angle offset, the system can adjust the output angle of the optical receiver 122 to the reference angle. Align to ensure correct polarity of the fiber.

[0099] It can be 0.1~5° for precise alignment, or 10~60° for initial alignment or large angle offset correction. Ensure that the optical signal can be transmitted correctly to avoid power loss or signal loss due to polarity errors.

[0100] Angle C is the angle between two adjacent clamping parts 111. Adjusting angle C changes the relative angle and arrangement between different optical fibers, which will affect the propagation path length of the optical signal in each optical path, thereby adjusting the phase .

[0101] Phase Used to adjust the initial phase of the optical signal to optimize the transmission effect. Adjusting the phase can help reduce mutual interference in a multi-optical system and ensure that the signals of each optical path maintain synchronization or a predetermined phase relationship when they reach the receiving end. Improve the signal transmission quality of the system, reduce interference and phase mismatch problems, and ensure the stability and consistency of the output signal. When tuning coherent detection or reducing multi-beam interference, the common phase adjustment range is 0~90°.

[0102] The target loss value includes the insertion loss value and the return loss value. The insertion loss value of the i-th optical fiber is , this formula can accurately measure the transmission loss of each optical fiber by comparing the input and output power. The size of the insertion loss directly reflects the quality of the optical fiber link and helps identify poor connections or optical fiber attenuation problems. The return loss value of the i-th optical fiber is ;in, , and It is the refractive index of the medium on both sides of the fiber end face. The measurement of the return loss value reflects the reflection of the optical signal at the fiber end face. If the return loss value is too large, it may indicate that there is something wrong with the fiber end face (such as pollution or damage) and needs to be adjusted or cleaned. By controlling the return loss value, the interference of the reflected signal on the overall optical transmission can be effectively reduced to ensure the stability of the system.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical device testing device, characterized in that: It includes an assembly structure, a test structure and a mounting plate; wherein, The assembly structure and the test structure are both slidably assembled on the mounting plate, the assembly structure includes a plurality of light emitting elements, the test structure includes a plurality of light receiving elements, each of the light emitting elements is arranged in one-to-one correspondence with each of the light receiving elements, each of the light receiving elements has a first motion trajectory and a second motion trajectory, the first motion trajectory is arranged on the output light path of the corresponding light emitting element, and the second motion trajectory is a circular path and is tangent to the output light path of the corresponding light emitting element; The assembly structure also includes a clamping part, the number of the clamping parts is the same as the number of the light receiving elements, the clamping part is provided with a through slot, the two ends of each through slot respectively correspond to a light receiving element and a light emitting element, and there is an angle C between two adjacent clamping parts, and the angle C is 0~90°.

2. The optical device testing device according to claim 1, characterized in that: A test slide rail is disposed on the mounting plate, the test structure comprises a rotating bracket, the light receiving element is mounted on the rotating bracket, the rotation trajectory of the rotating bracket is the second motion trajectory, and the extension path of the test slide rail is the first motion trajectory.

3. The optical device testing device according to claim 2, characterized in that: The rotating bracket includes a fixed part and a rotating part, the fixed part is slidably assembled on the test slide rail, the rotating part includes a first section and a second section, the first section is rotatably assembled on an end of the fixed part away from the test slide rail, the second section is equipped with the light receiving element, and an angle A is formed between the extension surface of the first section and the extension surface of the second section, and the angle A is 60~120°.

4. The optical device testing device according to claim 3, characterized in that: The fixing part is arranged perpendicularly to the mounting plate, and angle measuring dials are respectively arranged at both ends of the fixing part connecting the first section and the mounting plate. There is a rotation angle B between the extension line of the fixing part and the extension line of the first section, and the rotation angle B is 0~180°.

5. The optical device testing device according to claim 3 or 4, characterized in that: The fixing portion is arranged perpendicularly to the mounting plate, a micrometer is arranged between the first section and the fixing portion, the micrometer is used to adjust the distance between the first section and the mounting plate, a guide rail assembly is arranged between the fixing portion and the mounting plate, the guide rail assembly includes a first guide rail and a second guide rail, and the first guide rail and the second guide rail have a movement direction of approaching or moving away from each other.

6. A control method, characterized in that: Used to control the optical device testing device according to any one of claims 1 to 5, the control method comprises: Select an optical fiber installed in the light emitting element to emit light; Acquire a light spot image of the corresponding light receiving element; Extracting the center coordinates of the light spot image; Replace another light emitting element to execute the step of selecting an optical fiber assembled in one of the light emitting elements to emit light, until all center coordinates are extracted to obtain a coordinate array; Determining whether the coordinate array matches the arrangement positions of all the light emitting elements; If so, the sequence pair information of the optical fibers installed in each of the optical emitting components is confirmed.

7. The control method according to claim 6, characterized in that: The step of extracting the center coordinates of the light spot image comprises: Binarizing the spot image to obtain a black and white spot image; Extracting the pixel block with the largest area in the black and white spot image; The average value of all coordinates of the pixel block is calculated to obtain the center coordinate.

8. The control method according to claim 6, characterized in that: The step of determining whether the coordinate array matches the arrangement positions of all the light emitting elements further includes: If not, confirm that there is a fiber leak in the optical fiber installed in each of the optical emitting components; Mark the leaking fiber and replace it with a new one.

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