Linear multi-channel array collimator adjusting device and adjusting method

Abstract

The invention provides a linear multi-channel array collimator adjusting device and method, the device comprises an optical fiber array clamp and a lens array clamp, the optical fiber array clamp is provided with a first base, the first base is provided with a single-fiber collimator fixing groove and a multi-channel optical fiber array fixing position, and the lens array clamp is provided with a lens array. The gland is used for fixing the single-fiber collimator in the single-fiber collimator fixing groove and fixing the multi-channel optical fiber array in the multi-channel optical fiber array fixing position; the lens array clamp is provided with a second base, a pressing rod is hinged to one side of the second base, a gasket is clamped between the pressing rod and the second base, and a lens array fixing position is formed on the gasket. A reflector is arranged on the second base, the reflector and the gasket are oppositely arranged, and a lens array installed above the lens array fixing position is right opposite to the multi-channel optical fiber array. The invention also provides a method for adjusting the linear multi-channel array collimator by using the device. According to the invention, the adjustment cost of the collimator can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of the production and manufacturing of optical devices. Specifically, it is a linear multi-channel array collimator adjustment device and a method for adjusting a collimator using such a device. Background Art

[0002] With the development of optical module technology in data centers, the demand for miniaturization and arrayization of optical communication devices has increased sharply. The volume of optical devices is getting smaller and smaller. Multi-channel optical devices can transmit multiple beams of light within one device, becoming an important development trend of optical devices. Since collimators are widely used in optical devices, with the wide application of multi-channel optical devices, multi-channel collimators are also widely used in various optical devices.

[0003] Currently, multi-channel collimators have multi-channel fiber arrays and multi-channel lens arrays. When manufacturing multi-channel collimators, it is necessary to adjust the multi-channel fiber arrays and multi-channel lens arrays to ensure that the fiber of each channel is directly opposite the lens of the corresponding channel. Currently, commercially available array collimators mostly adopt 3-channel or 6-channel designs, which cannot meet the density requirements of multi-channel parallel transmission in co-packaged optics (CPO) devices. However, if the number of channels in the collimator is increased, the adjustment difficulty of the collimator will be greatly increased. Since the traditional multi-dimensional adjustment frame takes about 15 minutes to adjust the single-channel fiber and lens, if adjusting a collimator with 18 channels, 36 channels or even more channels, the adjustment cost will be very high, and it will also affect the production efficiency of multi-channel collimators.

[0004] The invention patent application with the publication number CN114063217A discloses a fixture for assembling a fiber array and a lens array. The fixture has multiple components such as a fixed plate, a clamping block, a slider, and a pressing block. However, this fixture is mainly for facilitating the clamping and removal of the fiber array in two directions, the horizontal direction and the vertical direction, and has little effect on improving the alignment adjustment between the fiber array and the lens array, and cannot improve the alignment efficiency of the multi-channel fiber array and the lens array. Summary of the Invention

[0005] The first object of the present invention is to provide a linear multi-channel array collimator adjustment device that can quickly achieve the alignment of a multi-channel fiber array and a lens array.

[0006] The second object of the present invention is to provide a method for adjusting a multi-channel collimator using the above linear multi-channel array collimator adjustment device.

[0007] To achieve the first object of the present invention, the linear multi-channel array collimator adjustment device provided by the present invention includes an optical fiber array fixture and a lens array fixture. The optical fiber array fixture has a first base, on which a single-fiber collimator fixing groove and a multi-channel optical fiber array fixing position are provided. A gland is also provided on the first base, which is used to fix the single-fiber collimator in the single-fiber collimator fixing groove and fix the multi-channel optical fiber array in the multi-channel optical fiber array fixing position. The lens array fixture has a second base, a pressing rod is hinged to one side of the second base, a gasket is clamped between the pressing rod and the second base, and a lens array fixing position is formed on the gasket. A reflector is provided on the second base, the reflector is arranged opposite to the gasket, and the lens array installed above the lens array fixing position is directly opposite to the multi-channel optical fiber array.

[0008] As can be seen from the above solution, when using the linear multi-channel array collimator adjustment device to adjust the collimator, first fix the single-fiber collimator and the multi-channel optical fiber array to the optical fiber array fixture, and then adjust the positions of the optical fiber array fixture and the lens array fixture so that the single-fiber collimator is directly opposite to the reflector, and the light beam emitted by the single-fiber collimator can return along the original path after being reflected by the reflector. At this time, the bottom surface of the multi-channel optical fiber array is substantially perpendicular to the end surface of the reflector. Finally, move the single-fiber collimator away and move the multi-channel optical fiber array to the position directly in the middle of the reflector, so that the lens array installed above the lens array fixing position is directly opposite to the multi-channel optical fiber array, so as to ensure that the lens arrays are aligned.

[0009] It can be seen that when using the linear multi-channel array collimator adjustment device of the present invention to adjust the collimator, by first adjusting the positions of the single-fiber collimator and the reflector, the relative angle between the multi-channel optical fiber array and the lens array has been calibrated. Therefore, it is only necessary to adjust the relative distance, the relative height up and down, and the relative position front and back of the multi-channel optical fiber array and the lens array in three dimensions, which can greatly reduce the adjustment difficulty of the multi-channel accuracy, save the adjustment time, and thus reduce the cost of station construction.

[0010] A preferred solution is that the gland can slide relative to the first base, and one end of the gland can abut against the multi-channel optical fiber array.

[0011] It can be seen from this that the gland can slide relative to the first base. By adjusting the relative position between the gland and the first base, the multi-channel optical fiber array can be limited, so as to ensure that the gland can reliably fix the single-fiber collimator and the multi-channel collimator array.

[0012] A further solution is that the gland is provided with a sliding groove, and a plurality of positioning holes are provided on the first base. Screws pass through the sliding groove and are screwed into one of the positioning holes.

[0013] It can be seen that through the cooperation of the screw and multiple positioning holes, the positioning of the gland at multiple positions can be realized, so as to achieve the rapid and accurate positioning of the gland.

[0014] A further solution is that a hinge shaft hole is provided in the middle of the pressure rod, a hinge shaft is formed on the second base, and the hinge shaft passes through the hinge shaft hole; a gasket groove is provided on the second base near the first end of the pressure rod, and the gasket is fixed in the gasket groove.

[0015] It can be seen that through the cooperation of the hinge shaft and the hinge shaft hole of the pressure rod, the hinged connection between the pressure rod and the second base is realized, which is convenient for driving the rotation of the pressure rod and thus realizing the clamping and loosening of the gasket.

[0016] A further solution is that the mirror and the gasket are arranged obliquely, and the included angle between the mirror and the gasket is a preset acute angle.

[0017] It can be seen that the mirror has been fixed on the second base in advance, and the inclination angle of the mirror is also set in advance, thereby reducing the difficulty of adjustment.

[0018] A further solution is that an elastic resetting member is arranged between the second base and the second end of the pressure rod, an elastic resetting member installation groove is provided on the second base, and a part of the elastic resetting member is installed in the elastic resetting member installation groove.

[0019] It can be seen that through the elastic resetting member, the pressure rod can maintain the clamping of the gasket, ensuring the firmness of the gasket clamping.

[0020] A further solution is that one side of the multi-channel fiber array presses against the single-fiber collimator.

[0021] A further solution is that a first threaded hole is provided on the first base, and the first base is fixed on the first adjusting bracket through the first threaded hole; a second threaded hole is provided on the second base, and the second base is fixed on the second adjusting bracket through the second threaded hole.

[0022] It can be seen that the fiber array fixture and the lens array fixture are respectively fixed on the first adjusting bracket and the second adjusting bracket. Therefore, by adjusting the positions of the first adjusting bracket and the second adjusting bracket, the relative position adjustment between the fiber array fixture and the lens array fixture can be realized, so as to realize the position adjustment between the multi-channel fiber array and the lens array.

[0023] To achieve the above second object, the linear multi-channel array collimator adjustment method provided by the present invention is applied to the above-mentioned linear multi-channel array collimator adjustment device. The method includes adjusting the position of the gland so that the single-fiber collimator is fixed in the single-fiber collimator fixing groove and the multi-channel fiber array is fixed in the multi-channel fiber array fixing position; adjusting the positions of the fiber array fixture and the lens array fixture so that the single-fiber collimator faces the mirror and the light beam emitted by the single-fiber collimator can return along the original path after being reflected by the mirror; moving the single-fiber collimator away and moving the multi-channel fiber array to the position directly in the middle of the mirror facing, so that the lens array installed above the lens array fixing position faces the multi-channel fiber array.

[0024] As can be seen from the above solution, when adjusting the collimator of the linear multi-channel, the present invention first adjusts the positions of the single-fiber collimator and the mirror, so that the relative angle between the multi-channel fiber array and the lens array has been calibrated. Therefore, in the subsequent adjustment process, only the relative distance, the relative height up and down, and the relative position front and back of the multi-channel fiber array and the lens array need to be adjusted in three dimensions, which can greatly reduce the adjustment difficulty of the multi-channel accuracy, save the adjustment time, and thus reduce the adjustment cost of the multi-channel collimator.

[0025] A preferred solution is that the first base is fixed on the first adjustment frame and the second base is fixed on the second adjustment frame; adjusting the positions of the fiber array fixture and the lens array fixture includes: adjusting the height, pitch angle, and yaw angle of the first adjustment frame and / or the second adjustment frame.

[0026] Thus, by adjusting the angles such as the height, pitch angle, and yaw angle of the first adjustment frame and / or the second adjustment frame, the relative positions of the fiber array fixture and the lens array fixture can be quickly adjusted, and then the adjustment of the collimator can be quickly realized. Description of the Drawings

[0027] Figure 1 is a structural diagram of the first perspective of the embodiment of the linear multi-channel array collimator adjustment device of the present invention.

[0028] Figure 2 is a structural diagram of the second perspective of the embodiment of the linear multi-channel array collimator adjustment device of the present invention.

[0029] Figure 3 is a structural diagram of the first perspective of the fiber array fixture in the embodiment of the linear multi-channel array collimator adjustment device of the present invention.

[0030] Figure 4 is a structural diagram of the second perspective of the fiber array fixture in the embodiment of the linear multi-channel array collimator adjustment device of the present invention.

[0031] Figure 5It is the exploded view of the optical fiber array fixture in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0032] Figure 6 It is the structure diagram of the optical fiber array fixture from the third perspective in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0033] Figure 7 Is Figure 6 The partial enlarged view of.

[0034] Figure 8 It is the structure diagram of the lens array fixture from the first perspective in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0035] Figure 9 It is the structure diagram of the lens array fixture from the second perspective in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0036] Figure 10 It is the exploded view of the lens array fixture in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0037] Figure 11 It is the structure diagram of the pressing rod of the lens array fixture in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0038] Figure 12 It is the structure diagram of the pressing rod, gasket, mirror and lens array of the lens array fixture in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0039] Figure 13 It is the exploded view of the pressing rod, gasket, mirror and lens array of the lens array fixture in the embodiment of the linear multi-channel array collimator adjusting device of the present invention.

[0040] Figure 14 It is the flowchart of the embodiment of the linear multi-channel array collimator adjusting method of the present invention.

[0041] Figure 15 It is the structure diagram of the first adjusting frame used in the embodiment of the linear multi-channel array collimator adjusting method of the present invention.

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0043] The linear multi-channel array collimator adjustment device of the present invention is used to adjust a linear multi-channel collimator. The linear multi-channel collimator includes a multi-channel optical fiber array and a lens array. Among them, the multi-channel optical fiber array contains multiple optical fibers, and the lens array contains multiple lenses. One optical fiber corresponds to one lens. When adjusting the collimator, it is necessary to adjust the relative positions of the multi-channel optical fiber array and the lens array to ensure that each optical fiber is directly opposite to the corresponding lens. In addition, the collimator array adjusted by the present invention is linearly arranged, that is, the multiple optical fibers in the multi-channel optical fiber array are arranged along a one-dimensional direction, and the multiple lenses in the lens array are also arranged along a one-dimensional direction.

[0044] Embodiment of the linear multi-channel array collimator adjustment device: See Figure 1 And Figure 2 As shown in, the linear multi-channel array collimator adjustment device of this embodiment has an optical fiber array fixture 10 and a lens array fixture 40, and the optical fiber array fixture 10 and the lens array fixture 40 are arranged close to each other. Among them, the optical fiber array fixture 10 is used to clamp the multi-channel optical fiber array 32, and the lens array 62 is fixed on the lens array fixture 40. By adjusting the relative positions of the optical fiber array fixture 10 and the lens array fixture 40, the relative positions of the multi-channel optical fiber array 32 and the lens array 62 are adjusted.

[0045] See Figures 3 to 5 As shown in, the optical fiber array fixture 10 has a first base 11. Two first threaded holes 12 are provided on the first base 11. Internal threads are provided in the first threaded holes 12. The first base 11 is fixed on the first adjustment frame through the two first threaded holes 12. For example, screws are used to pass through the first threaded holes 12 and thereby fix the first base 11 on the first adjustment frame. The specific structure of the first adjustment frame will be introduced later.

[0046] A single-fiber collimator fixing groove 16 is provided on the first base 11. See Figure 6 And Figure 7 As shown in, the single-fiber collimator fixing groove 16 is V-shaped, and the cylindrical single-fiber collimator 31 is placed in the single-fiber collimator fixing groove 16. In addition, a multi-channel optical fiber array fixing position 19 is formed on the first base 11, and the multi-channel optical fiber array 32 is located on the multi-channel optical fiber array fixing position 19. The multi-channel optical fiber array 32 has an upper cover plate 18 and a lower cover plate 17, and multiple optical fibers 33 are clamped between the upper cover plate 18 and the lower cover plate 17.

[0047] The multi-channel optical fiber array 32 is located on one side of the single-fiber collimator fixing groove 16, for example, on the left side of the single-fiber collimator fixing groove 16. When the single-fiber collimator 31 is placed in the single-fiber collimator fixing groove 16, the single-fiber collimator 31 is pressed from the left side by the multi-channel optical fiber array 32, so as to fix the single-fiber collimator 31 in the single-fiber collimator fixing groove 16.

[0048] The optical fiber array fixture 10 is further provided with a gland 20. The gland 20 is located above the first base 11 and can slide relative to the first base 11. A chute 22 is provided on the gland 20. The chute 22 is a through hole penetrating the gland 20. Three positioning holes 27 are provided on the first base 11. Internal threads are formed in each positioning hole 27. The screw 28 can pass through the chute 22 and be screwed into one of the positioning holes 27. After adjusting the position of the gland 20 relative to the first base 11, the screw 28 is passed through the chute 22 and screwed into a positioning hole 27, so that the gland 20 can be fixed on the first base 11.

[0049] In addition, a limiting portion 23 is formed at one end of the gland 20 close to the multi-channel optical fiber array 32. Refer to Figure 6 and Figure 7 , a stepped surface 24 of the limiting portion 23 can abut against one side of the multi-channel optical fiber array 32, and a part of the gland 20 also presses against the upper part of the multi-channel optical fiber array 32. Therefore, the gland 20 can limit the multi-channel optical fiber array 32 from two directions, namely, from above and from the left.

[0050] Since the other side of the multi-channel optical fiber array 32 also presses against the single-fiber collimator 31, when the gland 20 limits the multi-channel optical fiber array 32, the multi-channel optical fiber array 32 will limit the single-fiber collimator 31. Therefore, by adjusting the position of the gland 20, the single-fiber collimator 31 can be fixed in the single-fiber collimator fixing groove 16, and the multi-channel optical fiber array 32 can also be fixed in the multi-channel optical fiber array fixing position 19.

[0051] Furthermore, the single-fiber collimator fixing groove 16 is parallel to the fixing positions of each optical fiber of the multi-channel optical fiber array 32. Therefore, after being limited by the gland 20, the single-fiber collimator 31 can be parallel to each optical fiber in the multi-channel optical fiber array 32.

[0052] Refer to Figure 8 and Figure 9, the lens array fixture 40 has a second base 41. The second base 41 is provided with two second threaded holes 42. Internal threads are provided in the second threaded holes 42. The second base 41 is fixed on the second adjustment bracket through the two second threaded holes 42. For example, screws are used to pass through the second threaded holes 42 and thereby fix the second base 41 on the second adjustment bracket. Preferably, the structures of the first adjustment bracket and the second adjustment bracket are basically the same and are arranged in a mirror image.

[0053] One side of the second base 41 is provided with a pressure lever 50. The pressure lever 50 is hinged to one side of the second base 41. Refer to Figure 10 With Figure 11 , a hinge shaft groove 46 is provided in the middle of the second base 41. A hinge shaft 47 is arranged in the hinge shaft groove 46. A hinge shaft hole 53 is provided in the middle of the pressure lever 50. The hinge shaft 47 can pass through the hinge shaft hole 53, so that the pressure lever 50 can rotate relative to the second base 41.

[0054] One end of the pressure lever 50 is provided with a pressure arm 51. A protrusion 52 is provided at the end of the pressure arm 51. One end of the second base 41 close to the pressure arm 51 is provided with an extension arm 43. A gasket groove 45 is formed on the side of the extension arm 43 close to the pressure arm 51. A gasket 61 is fixed in the gasket groove 45. Preferably, the gasket 61 is opposite to the protrusion 52. When the pressure lever 50 clamps the gasket 61, the protrusion 52 abuts against the surface of the gasket 61. In this way, the gasket 61 is clamped between the second base 41 and the pressure lever 50. A lens array fixing position is formed above the gasket 61. The lens array 62 is fixed on the lens array fixing position. For example, the lens array 62 is fixed above the gasket 61 in advance by means of glue or the like.

[0055] A reflector 44 is provided on the second base 41. The reflector 44 is arranged opposite to the gasket 61. From Figure 10 It can be seen that the reflector 44 is fixed on the side opposite to the gasket groove 45 of the extension arm 43. Therefore, the lens array 62 installed above the lens array fixing position is facing the reflector 44. In addition, the reflector 44 and the lens array 62 in this embodiment are not parallel to each other, but form a specific angle, such as 8°. By setting the angle between the reflector 44 and the lens array 62 to 8°, the return loss of the adjusted collimator can be reduced. Therefore, the reflector 44 is inclined relative to the gasket 61. In order to meet such requirements, the reflector 44 can be fixed on the extension arm 43 in an inclined manner, so that the angle between the gasket groove 45 and the reflector 44 is a preset acute angle, such as Figure 12 And Figure 13 As shown. In this way, the angle between the reflector 44 and the gasket 61 is also a preset acute angle, so that the lens array 62 and the reflector 44 are inclined, and the angle between the lens array 62 and the reflector 44 is 8°.

[0056] In addition, an elastic reset member is provided between the pressure rod 50 and the second base 41. In this embodiment, the elastic reset member is a spring 72. An elastic reset member mounting groove 71 is provided on the second base 41, and a part of the spring 72 is mounted in the elastic reset member mounting groove 71. In addition, a blind hole 54 is also provided on the pressure rod 50, and one end of the spring 72 is fixed in the blind hole 54. Therefore, both ends of the spring 72 are respectively abutted against the pressure rod 50 and the second base 41, and the spring 72 is provided at one end away from the pressure arm 51. In this way, under the elastic force of the spring 72, the pressure arm 51 of the pressure rod 50 keeps pressing against the gasket 61, so as to clamp the gasket 61 between the pressure rod 50 and the second base 41.

[0057] Embodiment of the linear multi-channel array collimator adjustment method: The following combines Figure 14 to introduce the method for adjusting the linear multi-channel array collimator by using the above-mentioned linear multi-channel array collimator adjustment device. First, perform step S1 to fix the first base on the first adjustment frame and fix the second base on the second adjustment frame. The structures of the first adjustment frame and the second adjustment frame in this embodiment are basically the same and are mirror-symmetrically arranged. The following combines Figure 15 to illustrate by taking the first adjustment frame 80 as an example. The first adjustment frame 80 has a third base 88, and an adjustment component 81 is provided on the third base 88. The adjustment component 81 can move relative to the third base 88 in multiple directions such as up and down, front and back, left and right. In addition, the adjustment component 81 can also rotate relative to the third base 88. For example, the pitch angle and yaw angle of the adjustment component 81 relative to the third base 88 can be adjusted.

[0058] A transfer member 82 is provided on the adjustment component 81, and the fiber array fixture 10 is fixed on the transfer member 82. For example, two threaded holes are provided on the transfer member 82, and the screw passes through the first threaded hole 12 on the first base 11 and the threaded hole on the transfer member 82, so that the fiber array fixture 10 can be fixed on the transfer member 82.

[0059] In addition, a height adjustment knob 83, a left and right adjustment knob 84, a front and back adjustment knob 85, a yaw angle adjustment knob 86, and a pitch angle adjustment knob 87 are provided on the first adjustment frame 80. By using the height adjustment knob 83, the left and right adjustment knob 84, the front and back adjustment knob 85, the yaw angle adjustment knob 86, and the pitch angle adjustment knob 87, the positional relationship between the adjustment component 81 and the third base 88 can be changed.

[0060] The structure of the second adjustment frame is basically the same as that of the first adjustment frame 80, except that they are in a mirror image relationship, which is convenient for the operator to operate the first adjustment frame with the left hand and the second adjustment frame with the right hand.

[0061] Fix the first base on the first adjusting bracket 80 and fix the second base on the second adjusting bracket. It is necessary to reasonably place the positions of the first adjusting bracket and the second adjusting bracket so that the positional relationship between the fiber array fixture and the lens array fixture is as shown in Figure 1 and Figure 2 , that is, both the single-fiber collimator and the multi-channel fiber array can face the mirror directly, and the lens array is located at one end of the multi-channel fiber array close to the mirror.

[0062] Then, perform step S2. Fix the single-fiber collimator in the single-fiber collimator fixing groove, place the multi-channel fiber array in the multi-channel fiber array fixing position, and by adjusting the position of the gland, fix the single-fiber collimator in the single-fiber collimator fixing groove and fix the multi-channel fiber array in the multi-channel fiber array fixing position.

[0063] Next, perform step S3. Adjust the positions of the fiber array fixture and the lens array fixture. Specifically, adjust the height, pitch angle, yaw angle, etc. of the first adjusting bracket and / or the second adjusting bracket so that the light beam emitted from the single-fiber collimator can return along the original path. Since each fiber of the single-fiber collimator and the multi-channel fiber array is parallel, at this time, the bottom surface of the multi-channel fiber array is substantially perpendicular to the end surface of the mirror.

[0064] Then, perform step S4. Remove the single-fiber collimator and move the multi-channel fiber array to a position directly facing the center of the mirror. In this way, the lens array installed above the lens array fixing position faces the multi-channel fiber array directly, which can ensure the alignment of the lens array and the lens array.

[0065] Finally, perform step S5. Fine-tune the positions of the multi-channel fiber array and the lens array. Specifically, adjust the relative distance, the relative height up and down, and the relative position front and back of the multi-channel fiber array and the lens array in three dimensions.

[0066] It can be seen that when using the linear multi-channel array type collimator adjusting device to adjust the collimator, since the relative angle between the multi-channel fiber array and the lens array has been calibrated by first adjusting the positions of the single-fiber collimator and the mirror, that is, the yaw angle and the pitch angle have both been calibrated in step S3. Therefore, in step S4, only the relative distance, the relative height up and down, and the relative position front and back of the multi-channel fiber array and the lens array need to be adjusted in three dimensions. Since step S3 uses the single-fiber collimator to calibrate the yaw angle and the pitch angle, the calibration difficulty is small and the process complexity is low. Therefore, by applying the method of the present invention, the adjustment difficulty of the multi-channel collimator can be greatly reduced, the adjustment time can be saved, thereby reducing the cost of station construction, and thus reducing the production cost of the multi-channel collimator.

[0067] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Linear multi-channel array collimator adjustment device, comprising an optical fiber array fixture and a lens array fixture, characterized in that: The optical fiber array fixture has a first base, on which a single-fiber collimator fixing groove and a multi-channel optical fiber array fixing position are provided. A gland is also provided on the first base, and the gland is used to fix the single-fiber collimator in the single-fiber collimator fixing groove and fix the multi-channel optical fiber array in the multi-channel optical fiber array fixing position; The lens array fixture has a second base, a pressure rod is hinged to one side of the second base, a gasket is clamped between the pressure rod and the second base, and a lens array fixing position is formed on the gasket; A reflector is provided on the second base, the reflector is arranged opposite to the gasket, and the lens array installed above the lens array fixing position faces the multi-channel optical fiber array.

2. The linear multi-channel array collimator adjustment device according to claim 1, characterized in that: The gland can slide relative to the first base, and one end of the gland can abut against the multi-channel optical fiber array.

3. The linear multi-channel array collimator adjustment device according to claim 2, characterized in that: The gland is provided with a sliding groove, and a plurality of positioning holes are provided on the first base. A screw passes through the sliding groove and is screwed into one of the positioning holes.

4. The linear multi-channel array collimator adjustment device according to any one of claims 1 to 3, characterized in that: A hinge shaft hole is provided in the middle of the pressure rod, and a hinge shaft is formed on the second base, and the hinge shaft passes through the hinge shaft hole; Near the reflector at the first end of the pressure rod, a gasket groove is provided on the second base, and the gasket is fixed in the gasket groove.

5. The linear multi-channel array collimator adjustment device according to claim 4, characterized in that: The reflector and the gasket are inclined, and the included angle between the reflector and the gasket is a preset acute angle.

6. The linear multi-channel array collimator adjustment device according to claim 4, characterized in that: An elastic reset member is provided between the second base and the second end of the pressure rod. An elastic reset member installation groove is provided on the second base, and a part of the elastic reset member is installed in the elastic reset member installation groove.

7. The linear multi-channel array collimator adjustment device according to any one of claims 1 to 3, characterized in that: One side of the multi-channel optical fiber array presses against the single-fiber collimator.

8. The linear multi-channel array collimator adjustment device according to any one of claims 1 to 3, characterized in that: A first threaded hole is provided on the first base, and the first base is fixed on a first adjustment bracket through the first threaded hole; A second threaded hole is provided on the second base, and the second base is fixed on a second adjustment bracket through the second threaded hole.

9. A method for adjusting a linear multi-channel array collimator, which is applied to the linear multi-channel array collimator adjusting device according to any one of claims 1 to 7, characterized in that, The method includes: Adjust the position of the gland so that the single-fiber collimator is fixed in the single-fiber collimator fixing groove and the multi-channel optical fiber array is fixed in the multi-channel optical fiber array fixing position; Adjust the positions of the optical fiber array fixture and the lens array fixture so that the single-fiber collimator is facing the mirror, and the light beam emitted by the single-fiber collimator can return along the original path after being reflected by the mirror; Move the single-fiber collimator away, and move the multi-channel optical fiber array to the position directly in the middle of the mirror, so that the lens array mounted above the fixed position of the lens array faces the multi-channel optical fiber array.

10. The method for adjusting a linear multi-channel array collimator according to claim 9, wherein: The first base is fixed on the first adjustment bracket, and the second base is fixed on the second adjustment bracket; Adjusting the positions of the optical fiber array fixture and the lens array fixture includes: adjusting the height, pitch angle, and yaw angle of the first adjustment bracket and / or the second adjustment bracket.

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