MT-FA testing device

Abstract

This utility model discloses an MT-FA testing device, comprising: an integrated plate, on which a base is movably mounted along a first horizontal direction, and a clamp for holding the MT-FA is mounted on the base; a camera disposed above the clamp and movably mounted on the integrated plate, the camera facing the integrated plate, and a reflector disposed below the camera on the integrated plate; a photodetector; two supports movably mounted on the integrated plate along a second horizontal direction, the two supports being disposed on opposite sides of the base, and a movable seat movably mounted on the supports, the movable seat being hinged to a rotating arm via a vertical pivot, and the photodetector being rotatably mounted on the rotating arm via a horizontal pivot. This utility model solves the problem of poor stability in existing MT-FA testing methods.

Description

Technical Field

[0001] This utility model relates to the field of optical component technology, specifically to an MT-FA testing device. Background Technology

[0002] MT-FA (Multi-fiber Termination Fiber Array) is an integrated fiber optic array component primarily used to achieve high-density parallel transmission and multi-channel coupling of optical signals. An MT-FA typically consists of an MT connector (multi-fiber connector) and a fiber array. MT refers to the mechanical structure of the multi-fiber connector, commonly used in high-density fiber optic cabling (such as in data centers). FA achieves precise alignment between fibers through the precision machining and positioning of ceramic ferrules. MT-FA technology combines mechanical structure and ceramic ferrule alignment to ensure a stable, low-loss connection during insertion and removal of the multi-fiber connector.

[0003] The MT-FA testing system is not only a "quality gatekeeper" for high-density optical interconnect components, but also a core infrastructure for the optical communication industry's upgrade towards intelligence and standardization. The testing efficiency and quality of MT-FA directly determine the production capacity of the optical communication industry chain, while the testing process presents many challenges.

[0004] 1) High alignment accuracy is required during the testing process.

[0005] MT-FA typically contains dozens or even hundreds of optical fibers arranged in a high-density configuration (such as the multi-core fibers in a 400G / 800G optical module), with extremely small fiber spacing (such as 250μm or less). During testing, it is essential to ensure that each fiber is precisely aligned with the photodetector (PD). Any slight misalignment during manual alignment can lead to optical signal loss or false readings.

[0006] 2) Multi-channel synchronous testing is difficult

[0007] A single MT-FA needs to verify the insertion loss (IL), return loss (RL), and polarity of dozens to hundreds of optical fibers simultaneously. Traditional channel-by-channel testing is too time-consuming, and manual operation is prone to data fluctuations and poor repeatability.

[0008] 3) Product diversity and compatibility issues

[0009] The length, interface specifications (with or without isolators), and angles (e.g., 8° or 0° end face) of MT-FA vary from manufacturer to manufacturer. Traditional test fixtures lack flexibility, requiring frequent adapter changes, which leads to test process interruptions and increased costs.

[0010] The length and end-face polishing quality of the fiber array directly affect the optical signal transmission performance. If the test system cannot dynamically adjust the fiber length (e.g., through adjustment rods), it may lead to fiber bending or poor end-face contact, affecting the test results. Utility Model Content

[0011] To overcome the shortcomings of existing technologies, an MT-FA testing device is provided to solve the problem of poor stability in existing MT-FA testing.

[0012] To achieve the above objectives, an MT-FA testing device is provided, comprising:

[0013] An integrated board, wherein a base is movably mounted on the integrated board along a first horizontal direction, and a clamp for holding the MT-FA is mounted on the base;

[0014] A camera positioned above the clamp is mounted on the integrated plate in a height-adjustable manner, with the camera facing the integrated plate. A reflector positioned below the camera is mounted on the integrated plate.

[0015] The photodetector has two supports that are movable along a second horizontal direction on the integrated plate. The two supports are located on opposite sides of the base. A movable seat is mounted on the supports and can be raised and lowered. The movable seat is hinged to a rotating arm via a vertical pivot. The photodetector is rotatably mounted on the rotating arm via a horizontal pivot.

[0016] Furthermore, a slide is mounted on the integrated plate, and a drive screw is rotatably mounted on the slide. The base has a threaded through hole, and the drive screw is screwed into the threaded through hole. Protrusions are formed on opposite sides of the slide, and a guide groove is formed at the bottom of the base. The protrusions slide in the guide groove. A motor is mounted on the slide, and the motor is driven by the drive screw.

[0017] Furthermore, the cross-section of the protrusion is semi-circular, the wall of the guide groove is arc-shaped, and the arc of the groove wall is adapted to the arc of the outer wall of the protrusion.

[0018] Furthermore, a fixing seat is installed on the base, the fixing seat is a magnetic metal seat, and the clamp is magnetically attracted to the fixing seat by a magnetic component.

[0019] Furthermore, the integrated plate is vertically provided with a column, and the vertically mounted camera is connected to a lifting seat via a support rod. The lifting seat has a through hole, and the column is slidably disposed in the vertical through hole. A first locking member for locking the column is installed on the lifting seat.

[0020] Furthermore, the lifting seat has a horizontal through hole, the support rod is slidably disposed in the horizontal through hole, and a second locking member for locking the support rod is installed on the lifting seat.

[0021] Furthermore, the reflector is mounted on the integrated plate via a displacement platform.

[0022] Furthermore, a guide rail is installed on the integrated plate, and a through groove is formed at the bottom of the support platform. The guide rail slides in the groove, and a third locking member for locking the guide rail is installed on the support platform.

[0023] Furthermore, the movable seat can be vertically mounted on the support platform via a vertically arranged linear module.

[0024] Furthermore, the reflector is tilted at 45°.

[0025] The beneficial effects of this invention are as follows: The MT-FA testing device uses the movement of the base to position the MT-FA under test between the camera and the reflector for polarity testing. The platform, movable seat, and rotating arm adjust the horizontal position and rotation angle of the photodetector on the integrated board, achieving precise alignment between the MT-FA fiber array and the photodetector. Simultaneously, it supports multi-channel integrated synchronous testing, significantly improving efficiency. Furthermore, this MT-FA testing device utilizes clamping to hold the MT-FA under test, eliminating the cumbersome operation and instability associated with traditional manual adjustments. Attached Figure Description

[0026] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the MT-FA testing device according to an embodiment of the present invention.

[0028] Figure 2 This is an exploded structural diagram of the fixture according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the structure of the photodetector according to an embodiment of the present invention.

[0030] Figure label:

[0031] Integrated board 1, base 11, clamp 12, fixed seat 121, slide table 13, protrusion 131, drive screw 14, motor 15;

[0032] Camera 2, reflector 21, displacement platform 211, support rod 22, lifting seat 23, column 24;

[0033] 3. Photodetector, 31. Support, 311. Guide rail, 32. Movable seat, 321. Linear module, 33. Vertical rotating shaft, 34. Rotating arm, 35. Horizontal rotating shaft. Detailed Implementation

[0034] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Reference Figures 1 to 3 As shown, this utility model provides an MT-FA testing device, including: an integrated board 1, a camera 2, and a photodetector 3.

[0037] In this embodiment, the integrated board is a breadboard. The camera and photodetector are integrated and mounted on the integrated board.

[0038] The integrated board 1 is movably mounted with a base 11 along a first horizontal direction. A clamp 12 is mounted on the base 11. The clamp 12 is used to clamp the MT-FA. The clamp is detachably mounted on the base.

[0039] Camera 2 is positioned above the clamp. Camera 2 is mounted on the integrated plate 1 in a height-adjustable manner. Camera 2 is positioned facing the integrated plate 1. A reflector 21 is mounted on the integrated plate 1 and positioned below camera 2.

[0040] As a preferred embodiment, the reflector is tilted. In this embodiment, the reflector is tilted at 45°.

[0041] After the MT-FA under test is installed in the fixture, the position of the base on the integrated board is adjusted so that the MT-FA under test is positioned between the camera and the reflector. The polarity of the MT-FA under test is then tested using the camera and the reflector.

[0042] When conducting polarity testing, a reflector tilted at 45° is used to enable a single camera to simultaneously receive and measure light from multiple different directions. This allows the device under test to handle both TX and RX directions simultaneously, reducing testing costs, shortening testing time, and simplifying operation.

[0043] In a preferred embodiment, the reflector 21 is mounted on the integrated board 1 via a displacement platform 211. The displacement platform is electrically operated. The reflector can move back and forth via the electrically operated platform, allowing the focus to be adjusted according to the device under test, thus achieving more precise and convenient testing operations. A high-definition camera is used in conjunction with the 45° reflector, saving operating space on the integrated board and enabling simultaneous detection in two directions, significantly reducing the time required for a single test.

[0044] In this embodiment, there are two photodetectors 3. Specifically, two supports 31 are movably mounted on the integrated plate 1 along the second horizontal direction. The two supports 31 are located on opposite sides of the base 11. A movable seat 32 is mounted on the supports 31 in a lifting manner. A rotating arm 34 is hinged to the movable seat 32 via a vertical pivot 33. The photodetector 3 is rotatably mounted on the rotating arm 34 via a horizontal pivot 35.

[0045] The two photodetectors on the integrated board can detect light output not only in basic orthogonal directions but also in various irregular directions. The two photodetectors adopt the same symmetrical design concept, supporting up-down, left-right movement and vertical and horizontal rotation. Damping allows the rotation angle to be fixed and adjusted according to the length and specifications of the device under test.

[0046] For special cases, especially for devices under test where the TX and RX axes are reversed, omnidirectional testing can be achieved, making it highly practical. A mirror is also mounted on the integrated board, positioned directly below the photodetector, to facilitate observation of whether the RX component is aligned with the detector from different angles.

[0047] The photodetector is integrated and mounted on an integrated board, which achieves miniaturization as much as possible. While meeting the detection requirements to the greatest extent, it ensures that the optical fiber of the device under test does not need to be split at too large an angle.

[0048] The dual photodetector has a detection area of ​​8mm², which basically meets the photosensitive testing requirements of most fiber optic devices. In special cases where the size or width of the fiber optic device is greater than 8mm, the fiber optic device under test can be gradually moved by moving the base to ensure that it is centered on the detection surface of the photodetector.

[0049] In this embodiment, a slide 13 is mounted on the integrated plate 1. A drive screw 14 is rotatably mounted on the slide 13. A threaded through hole is provided on the base 11. The drive screw 14 is screwed into the threaded through hole. Protrusions 131 are formed on opposite sides of the slide 13. A guide groove is formed on the bottom of the base 11. The protrusions 131 slide in the guide groove. A motor 15 is mounted on the slide 13. The motor is driven by the drive screw 14.

[0050] As a preferred implementation, electronic limiters are installed at opposite ends of the slide table to accurately record each movement coordinate of the base.

[0051] Combination Figure 2 As shown, the cross-section of the protrusion 131 is semi-circular. The wall of the guide groove is arc-shaped. The curvature of the groove wall matches the curvature of the outer wall of the protrusion 131.

[0052] In this embodiment, a fixing seat 121 is mounted on the base 11. The fixing seat 121 is a magnetic metal seat. The clamp is magnetically attracted to the fixing seat 121 by a magnetic component.

[0053] In some embodiments, the fixture is fabricated using 3D printing technology to adapt to different devices under test, so that the fixture can be customized in a short time and provide a suitable clamping method for each device under test.

[0054] Combination Figure 1 As shown, the integrated board 1 has a vertically mounted column 24. A vertically mounted camera 2 is connected to a lifting base 23 via a support rod 22, and the lifting base 23 has a through hole. The column 24 is slidably positioned within the vertical through hole. A first locking element is installed on the lifting base 23. The first locking element is used to lock the column 24.

[0055] As a preferred implementation, the camera is equipped with an adjustable fill light, which can meet and adapt to various environmental conditions, and assist in making the testing process clearer and more accurate.

[0056] The lifting seat 23 has a horizontal through hole. The support rod 22 slides in the horizontal through hole. A second locking element is installed on the lifting seat 23. The first locking element is used to lock the support rod 22.

[0057] A guide rail 311 is mounted on the integrated plate 1. A through groove is formed at the bottom of the support 31. The guide rail 311 slides in the groove. A third locking element is installed on the support 31. The third locking element is used to lock the guide rail 311.

[0058] The guide rail 311 is provided with scale lines, which are set along the length of the guide rail. In this embodiment, the slide is set along the length of the integrated plate, while the guide rail is set along the width of the integrated plate.

[0059] The movable seat 32 can be raised and lowered on the support platform 31 via a vertically arranged linear module 321.

[0060] The MT-FA testing device of this invention sets the MT-FA under test between the camera and the reflector for polarity testing by moving the base. The horizontal position of the photodetector on the integrated board and the flip angle are adjusted by the support, the movable seat and the rotating arm, so as to achieve precise alignment between the MT-FA fiber array and the photodetector. At the same time, it supports multi-channel integrated synchronous detection, which significantly improves efficiency.

[0061] The MT-FA testing device of this invention can achieve automatic and precise alignment of the MT-FA fiber array and the photodetector by configuring an electric drive mechanism and a controller.

[0062] The MT-FA testing device of this invention utilizes clamping to hold the MT-FA under test for auxiliary testing, eliminating the cumbersome operation and instability of traditional manual adjustment.

[0063] The MT-FA testing device of this invention is equipped with a variety of fixtures to adapt to the testing of most types of devices, and can also quickly respond to customers' customized needs.

[0064] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An MT-FA testing device, characterized by, include: An integrated board, wherein a base is movably mounted on the integrated board along a first horizontal direction, and a clamp for holding the MT-FA is mounted on the base; A camera positioned above the clamp is mounted on the integrated plate in a height-adjustable manner, with the camera facing the integrated plate. A reflector positioned below the camera is mounted on the integrated plate. The photodetector has two supports that are movable along a second horizontal direction on the integrated plate. The two supports are located on opposite sides of the base. A movable seat is mounted on the supports and can be raised and lowered. The movable seat is hinged to a rotating arm via a vertical pivot. The photodetector is rotatably mounted on the rotating arm via a horizontal pivot.

2. The MT-FA test device of claim 1, wherein, A slide is mounted on the integrated plate, and a drive screw is rotatably mounted on the slide. The base has a threaded through hole, and the drive screw is screwed into the threaded through hole. Protrusions are formed on opposite sides of the slide, and a guide groove is formed at the bottom of the base. The protrusions slide in the guide groove. A motor is mounted on the slide, and the motor is driven by the drive screw.

3. The MT-FA testing device of claim 2, wherein, The cross-section of the protrusion is semi-circular, and the wall of the guide groove is arc-shaped, with the arc of the groove wall matching the arc of the outer wall of the protrusion.

4. The MT-FA test device of claim 1, wherein, A fixing seat is installed on the base. The fixing seat is a magnetic metal seat, and the clamp is magnetically attracted to the fixing seat by a magnetic component.

5. The MT-FA testing device of claim 1, wherein, The integrated board is vertically supported by a column, and a vertically mounted camera is connected to a lifting seat via a support rod. The lifting seat has a through hole, and the column is slidably positioned in the vertical through hole. A first locking element for locking the column is installed on the lifting seat.

6. The MT-FA test device of claim 5, wherein, The lifting seat has a horizontal through hole, the support rod is slidably disposed in the horizontal through hole, and a second locking member for locking the support rod is installed on the lifting seat.

7. The MT-FA testing device of claim 1, wherein, The reflector is mounted on the integrated plate via a displacement platform.

8. The MT-FA testing device of claim 1, wherein, The integrated plate is equipped with a guide rail, and the bottom of the support has a through groove. The guide rail slides in the groove, and the support is equipped with a third locking element for locking the guide rail.

9. The MT-FA testing device of claim 8, wherein, The movable seat is vertically and retractably mounted on the support platform via a vertically arranged linear module.

10. The MT-FA testing device of claim 1, wherein, The reflector is tilted at 45°.

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