Fast axis direction compression and collimation device for optical fiber column and diode

Abstract

The utility model provides a fast axis direction compression collimation device of an optical fiber column and a diode, which comprises a high-power semiconductor laser diode, an optical fiber column lens, a laser diode bracket, a lens clamping rear plate, a lens clamping front plate, a laser diode fine tuning frame base and a lens clamping fine tuning frame base, according to the utility model, the spring is driven to compress by moving the lens clamping front plate, and then the optical fiber cylindrical lens is placed on the lens clamping rear plate, so that the optical fiber cylindrical lens is clamped and fixed on the lens clamping rear plate by utilizing the lens clamping front plate to be matched with the spring; and then a laser diode fine tuning frame base and / or a lens clamping fine tuning frame base are / is used for performing fine tuning on the high-power semiconductor laser diode and / or the optical fiber cylindrical lens in five dimension directions, so that the distance between the high-power semiconductor laser diode and the optical fiber cylindrical lens is adjusted to the optimal distance while compression collimation in the fast axis direction is completed.

Description

Technical Field

[0001] This utility model relates to a collimation device, specifically a fast-axis compression collimation device for an optical fiber column and a diode, belonging to the field of semiconductor laser technology. Background Technology

[0002] As the output power of high-power semiconductor laser diodes increases, their applications in military fields such as laser guidance, optoelectronic countermeasures, and anti-submarine communications, as well as civilian fields such as laser processing and laser welding, are becoming increasingly widespread.

[0003] The output beam of a high-power semiconductor laser diode is a narrow ellipse, such as... Figure 8 As shown, its divergence angle α in the fast axis direction is much larger than the divergence angle β in the slow axis direction. In order to make the output beam closer to a circle, it is necessary to compress and collimate the fast axis direction of the high-power semiconductor laser diode so that its fast axis divergence angle α is close to the slow axis divergence angle β.

[0004] Micropillar lenses can achieve compressed collimation of high-power semiconductor laser diodes along the fast axis. In practical applications, optical fibers are often used as micropillar lenses. Figure 9 This is a schematic diagram illustrating the principle of using a fiber optic column lens to compress and collimate a high-power semiconductor laser diode along its fast axis. Figure 9 As shown in (a), to achieve compressed collimation of the high-power semiconductor laser diode along the fast axis, the high-power semiconductor laser diode needs to be placed near the focal point of the fiber optic lens, such as... Figure 9 As shown in (b), the process requires fine-tuning the relative positions between the fiber optic pillar lens and the high-power semiconductor laser diode in five dimensions: three translational directions (X, Y, Z) and two angular directions (xy, xz). For example, using a single-mode fiber with an outer diameter of 125 micrometers as the fiber optic pillar lens, and compressing and collimating the high-power semiconductor laser diode with a 100-micrometer emitting area in the fast axis direction, the optimal distance between the fiber optic pillar lens and the high-power semiconductor laser diode is approximately 10 micrometers. In actual process, how to fix the 125-micrometer diameter fiber optic pillar lens and how to fine-tune it in the three translational directions (X, Y, Z) and the two angular directions (xy, xz) to achieve the optimal distance between the high-power semiconductor laser diode and the fiber optic pillar lens are challenges in existing processes. Therefore, a fast-axis compression and collimation device for the fiber optic pillar and the diode is proposed. Utility Model Content

[0005] In view of this, the present invention provides a fast-axis compression collimation device for an optical fiber post and a diode to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: a fast axis direction compression collimation device for an optical fiber column and a diode, including a high-power semiconductor laser diode and an optical fiber column lens, and also including a laser diode support, a lens clamping rear plate, a lens clamping front plate, a laser diode fine-tuning frame base and a lens clamping fine-tuning frame base.

[0007] The laser diode bracket is mounted on the top of the laser diode fine-tuning frame base. The high-power semiconductor laser diode is mounted on one side of the upper surface of the laser diode bracket. The lens clamping rear plate is mounted on the top of the lens clamping fine-tuning frame base. The lens clamping front plate is slidably connected to the middle of the inner sidewall of the lens clamping rear plate. A spring is installed between the lens clamping rear plate and the lens clamping front plate.

[0008] The lens clamping front plate is used in conjunction with the spring to clamp and fix the fiber optic column lens to the lens clamping rear plate.

[0009] The laser diode fine-tuning bracket base and / or lens clamping fine-tuning bracket base are used to adjust the high-power semiconductor laser diode and / or fiber column lens in five dimensions.

[0010] More preferably, a stepped support is provided on one side of the lens clamping rear plate, and a connecting rod slide is provided on the inner side wall of the lens clamping rear plate.

[0011] More preferably, a handle is fixedly connected to one side of the lens clamping front plate, and a connecting rod shaft is installed on the other side of the lens clamping front plate. An end cap is installed at the end of the connecting rod shaft away from the lens clamping front plate. The outer side wall of the connecting rod shaft is slidably connected to the inner side wall of the lens clamping rear plate, and the outer side wall of the end cap is slidably connected to the inner side wall of the connecting rod slide. The spring is sleeved on the side of the outer side wall of the connecting rod shaft near the end cap.

[0012] More preferably, the five dimensional directions are the three translational directions X, Y, and Z, and the two angular directions xy and xz.

[0013] More preferably, the laser diode bracket is made of aluminum or oxygen-free copper, and the laser diode bracket adopts a Г-shaped structure with a protruding portion of length L. 探 The width of the protruding part is W, and the length of the rear part of the lens clamping plate is L. 后 The width of the concave hollow portion of the lens clamping rear plate and the lens clamping front plate is W. 内 ;

[0014] Among them, L 探 Not less than L 后 W is less than W 内 .

[0015] More preferably, the upper half of both the lens clamping rear plate and the lens clamping front plate are concave, and the two are adapted to each other so that after the fiber column lens is fixed, the beam emitted by the high-power semiconductor laser diode can penetrate the fiber column lens without obstruction through the concave hollow part.

[0016] More preferably, the lens clamps the rear plate for a vertical length H after the lens clamps the rear plate, and the lens clamps the front plate for a vertical length H before the lens clamps the front plate.

[0017] Among them, the value after H is greater than the value before H;

[0018] The width of the stepped support is L, and the diameter of the fiber optic column lens is D;

[0019] Where L is less than D and L is greater than D / .

[0020] More preferably, there are two connecting rod shafts, two connecting rod slides, and two springs. The two connecting rod slides are symmetrically opened on the inner sidewall of the lens clamping rear plate, and the two connecting rod shafts are symmetrically installed on one side of the lens clamping front plate. The outer sidewalls of the two connecting rod shafts are slidably connected to the inner sidewalls of the two connecting rod slides, and the two springs are respectively sleeved on the outer sidewalls of the two connecting rod shafts.

[0021] More preferably, the end is a nut, and the outer side wall of the connecting rod shaft is threaded on the side away from the lens clamping front plate, and the inner side wall of the end is threadedly connected to one side of the outer side wall of the connecting rod shaft.

[0022] More preferably, the end and the connecting rod shaft are an integral structure, the outer side wall of the connecting rod shaft is threaded on the side near the lens clamping front plate, the inner side wall of the lens clamping front plate is threaded on the side, and the outer side wall of the connecting rod shaft is threadedly connected to the inner side wall of the lens clamping front plate.

[0023] The present invention has the following advantages due to the adoption of the above technical solution:

[0024] I. This utility model uses a movable lens clamping front plate to drive a spring for compression, and then places the fiber optic column lens on the lens clamping rear plate. The lens clamping front plate, in conjunction with the spring, clamps and fixes the fiber optic column lens on the lens clamping rear plate. Then, the laser diode fine-tuning bracket base and / or the lens clamping fine-tuning bracket base are used to fine-tune the high-power semiconductor laser diode and / or the fiber optic column lens in five dimensions, so as to complete the fast axis compression collimation and adjust the distance between the high-power semiconductor laser diode and the fiber optic column lens to the optimal distance.

[0025] Second, this utility model solves the difficulties existing in the current process, and is simple to operate. It can be widely used in the mass production of high-power semiconductor laser diodes for fast axis compression collimation using fiber optic pillar lenses.

[0026] The above overview is for illustrative purposes only and is not intended to limit the scope of the invention in any way. Further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description, in addition to the illustrative aspects, embodiments, and features described above. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a structural diagram of the present invention;

[0029] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of a single connecting rod shaft of this utility model;

[0031] Figure 4 This is a cross-sectional view of the lens clamping rear plate of this utility model.

[0032] Figure 5 This is a schematic diagram of the assembly structure of the connecting rod shaft and the end of this utility model;

[0033] Figure 6 This is a schematic diagram of the structure of the double connecting rod shaft of this utility model;

[0034] Figure 7 This is a schematic diagram of the dispensing and cutting of the fiber optic column lens of this utility model;

[0035] Figure 8 This is a schematic diagram of the output beam of the high-power semiconductor laser diode of this utility model;

[0036] Figure 9 This is a schematic diagram illustrating the principle of compression alignment in the fast axis direction of this utility model.

[0037] Reference numerals: 1. High-power semiconductor laser diode; 2. Fiber optic column lens; 3. Laser diode bracket; 4. Lens clamping rear plate; 5. Lens clamping front plate; 6. Spring; 41. Step support; 42. Linkage slide; 51. Handle; 52. Linkage shaft; 53. End; A. Laser diode fine-tuning bracket base; B. Lens clamping fine-tuning bracket base. Detailed Implementation

[0038] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0039] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0040] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0041] like Figures 1-7 As shown, this utility model embodiment provides a fast axis compression collimation device for an optical fiber column and a diode, including a high-power semiconductor laser diode 1 and an optical fiber column lens 2, as well as a laser diode support 3, a lens clamping rear plate 4, a lens clamping front plate 5, a laser diode fine-tuning frame base A, and a lens clamping fine-tuning frame base B.

[0042] The laser diode bracket 3 is mounted on the top of the laser diode fine-tuning frame base A. The high-power semiconductor laser diode 1 is mounted on one side of the upper surface of the laser diode bracket 3. The lens clamping rear plate 4 is mounted on the top of the lens clamping fine-tuning frame base B. The lens clamping front plate 5 is slidably connected to the middle of the inner side wall of the lens clamping rear plate 4. A spring 6 is installed between the lens clamping rear plate 4 and the lens clamping front plate 5.

[0043] The lens clamping front plate 5 is used in conjunction with the spring 6 to clamp and fix the fiber optic column lens 2 onto the lens clamping rear plate 4.

[0044] Among them, the laser diode fine-tuning bracket base A and / or the lens clamping fine-tuning bracket base B are used to adjust the high-power semiconductor laser diode 1 and / or the fiber column lens 2 in five dimensions.

[0045] A stepped support 41 is provided on one side of the lens clamping rear plate 4, and a connecting rod slide 42 is provided on the inner side wall of the lens clamping rear plate 4.

[0046] A handle 51 is fixedly connected to one side of the lens clamping front plate 5, and a connecting rod shaft 52 is installed on the other side of the lens clamping front plate 5. An end 53 is installed at the end of the connecting rod shaft 52 away from the lens clamping front plate 5. The outer side wall of the connecting rod shaft 52 is slidably connected to the inner side wall of the lens clamping rear plate 4, and the outer side wall of the end 53 is slidably connected to the inner side wall of the connecting rod slide 42. A spring 6 is sleeved on the side of the outer side wall of the connecting rod shaft 52 near the end 53.

[0047] The five dimensions are the three translational directions X, Y, and Z, and the two angular directions xy and xz.

[0048] The laser diode fine-tuning base A and the lens clamping fine-tuning base B can simultaneously achieve fine-tuning in one or more of the five dimensions. However, when combined, they must be able to achieve fine-tuning in all five dimensions between the high-power semiconductor laser diode 1 and the fiber optic lens 2. For example, if the laser diode fine-tuning base A is fixed (achieving fine-tuning in all five dimensions between the high-power semiconductor laser diode 1 and the fiber optic lens 2), then the lens clamping fine-tuning base B must have fine-tuning capabilities in all five dimensions. Furthermore, if the laser diode fine-tuning base A can achieve fine-tuning in the Y-direction and xz-direction angles, then the lens clamping fine-tuning base B must be able to achieve fine-tuning in the remaining three dimensions (x, z translation directions and xy-direction angle). For the y-direction and xz-direction fine-tuning that the laser diode fine-tuning base A can achieve, the lens clamping fine-tuning base B may or may not have these two-dimensional fine-tuning capabilities.

[0049] In one embodiment, the laser diode bracket 3 is made of aluminum or oxygen-free copper, and the laser diode bracket 3 adopts a Г-shaped structure with a protruding portion having a length of L. 探 The width of the protruding part is W, and the length of the rear part of the lens clamping rear plate 4 is L. 后 The width of the concave hollow portion of the lens clamping rear plate 4 and the lens clamping front plate 5 is W. 内 ;

[0050] Among them, L 探 Not less than L 后 W is less than W 内 ;

[0051] The Г-shaped structure of the laser diode bracket 3 allows the high-power semiconductor laser diode 1 fixed thereon to approach the fiber optic column lens 2 from the hollow part of the concave structure of the lens clamping rear plate 4 and the lens clamping front plate 5. This positions the high-power semiconductor laser diode 1 near the focal point of the fiber optic column lens 2, so that the relative position between the high-power semiconductor laser diode 1 and the fiber optic column lens 2 can be finely adjusted using the laser diode fine-tuning bracket base A and the lens clamping fine-tuning bracket base B.

[0052] In one embodiment, the upper half of both the lens clamping rear plate 4 and the lens clamping front plate 5 are concave and are adapted to each other so that after the fiber column lens 2 is fixed, the beam emitted by the high-power semiconductor laser diode 1 can penetrate the fiber column lens 2 through the concave hollow part without obstruction.

[0053] The concave shape of the lens clamping rear plate 4 matches the concave shape of the lens clamping front plate 5. After the fiber optic column lens 2 is clamped and fixed, the beam emitted by the high-power semiconductor laser diode 1 can pass through the fiber optic column lens 2 without obstruction through the hollow part of the concave shape, so as to achieve compression collimation of the high-power semiconductor laser diode 1 in the fast axis direction by the fiber optic column lens 2.

[0054] In one embodiment, the lens clamps the rear plate 4 with a vertical length H after it is closed, and the lens clamps the front plate 5 with a vertical length H before it is closed.

[0055] Among them, the value after H is greater than the value before H;

[0056] The width of the step support 41 is L, and the diameter of the fiber optic column lens 2 is D;

[0057] Where L is less than D and L is greater than D / 2;

[0058] The step support 41 of the lens clamping rear plate 4 has a length L that is less than the diameter D of the fiber optic column lens 2 and greater than the radius D / 2 of the fiber optic column lens 2, making it easy to place the fiber optic column lens 2 on the step support 41. When the fiber optic column lens 2 is clamped and fixed on the step support 41, there is a gap between the lens clamping rear plate 4 and the lens clamping front plate 5.

[0059] In one embodiment, there are two connecting rod shafts 52, two connecting rod slides 42, and two springs 6. The two connecting rod slides 42 are symmetrically opened on the inner sidewall of the lens clamping rear plate 4, and the two connecting rod shafts 52 are symmetrically installed on one side of the lens clamping front plate 5. The outer sidewalls of the two connecting rod shafts 52 are slidably connected to the inner sidewalls of the two connecting rod slides 42, and the two springs 6 are respectively sleeved on the outer sidewalls of the two connecting rod shafts 52.

[0060] like Figure 6As shown, the lens clamping front plate 5 has two connecting rod shafts 52, and each connecting rod shaft 52 is fitted with a spring 6. The lens clamping rear plate 4 has a connecting rod slide 42 at the corresponding position. The material, thickness and length of each spring 6 should be exactly the same to ensure that the two ends of the fiber optic column lens 2 are subjected to a balanced clamping force.

[0061] In one embodiment, the end 53 is a nut, and the outer side wall of the connecting rod shaft 52 away from the lens clamping front plate 5 is threaded, and the inner side wall of the end 53 is threadedly connected to the outer side wall of the connecting rod shaft 52.

[0062] like Figure 7 As shown in -a, end 53 is an internal nut, and the left end of connecting rod shaft 52 is an external thread. During installation... Figure 2 As shown, insert the connecting rod shaft 52 into the connecting rod slide 42 of the lens clamping rear plate 4 from the right side, put on the spring 6, and then screw the end 53 to the external thread of the connecting rod shaft 52 to form a whole.

[0063] In one embodiment, the end 53 and the connecting rod shaft 52 are an integral structure. The outer side wall of the connecting rod shaft 52 is threaded on the side near the lens clamping front plate 5, and the inner side wall of the lens clamping front plate 5 is threaded on the side. The outer side wall of the connecting rod shaft 52 is threadedly connected to the inner side wall of the lens clamping front plate 5.

[0064] like Figure 7 As shown in -b, an internal thread is provided on one side of the lens clamping front plate 5, and an external thread is provided on one end of the connecting rod shaft 52. During installation, the spring 6 is put on the connecting rod shaft 52, and the connecting rod shaft 52 with the spring 6 is inserted into the connecting rod slide 42 of the lens clamping rear plate 4 from the left side. The external thread on the right end of the connecting rod shaft 52 is screwed into the nut inside the lens clamping front plate 5 to form a whole, thus completing the assembly operation.

[0065] When this utility model is in operation: For example Figure 2 As shown, firstly, the high-power semiconductor laser diode 1 is fixed on the laser diode bracket 3. Then, using the spring 6 built into the device, the compressed and rebounding force simply pulls and releases the fiber optic column lens 2, which has a diameter of tens to hundreds of micrometers. The clamping force on the fiber optic column lens 2 can be changed by altering the number, material, thickness, and length of the springs 6. After fixing the high-power semiconductor laser diode 1 and the fiber optic column lens 2, the laser diode fine-tuning bracket base A and the lens clamping fine-tuning bracket base B are adjusted. The relative position between the high-power semiconductor laser diode 1 and the fiber optic column lens 2 is fine-tuned in five dimensions: three translational directions (X, Y, Z) and two angular directions (xy, xz), achieving compression collimation of the high-power semiconductor laser diode 1 along its fast axis by the fiber optic column lens 2.

[0066] Once the relative positions of the fiber optic lens 2 and the high-power semiconductor laser diode 1 are finely adjusted and determined, as follows: Figure 7 As shown in -a, apply UV adhesive to both sides of the high-power semiconductor laser diode 1, away from the heat sink of the chip, approximately 4 mm from the edge of the laser diode bracket 3-lens clamping back plate. Irradiate with a UV lamp to cure the UV adhesive. Then, use a glass cutter to cut the fiber optic column lens 2 at the edge of the heat sink. Figure 7 As shown in -b, the high-power semiconductor laser diode 1 with fiber optic column lens 2 is removed from the laser diode support 3 to complete the compression collimation of the high-power semiconductor laser diode 1 in the fast axis direction.

[0067] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A fast-axis compression collimation device for an optical fiber column and a diode, comprising a high-power semiconductor laser diode (1) and an optical fiber column lens (2), characterized in that, It also includes a laser diode bracket (3), a lens clamping rear plate (4), a lens clamping front plate (5), a laser diode fine-tuning frame base (A), and a lens clamping fine-tuning frame base (B); The laser diode bracket (3) is mounted on the top of the laser diode fine-tuning frame base (A), the high-power semiconductor laser diode (1) is mounted on one side of the upper surface of the laser diode bracket (3), the lens clamping rear plate (4) is mounted on the top of the lens clamping fine-tuning frame base (B), the lens clamping front plate (5) is slidably connected to the middle of the inner side wall of the lens clamping rear plate (4), and a spring (6) is installed between the lens clamping rear plate (4) and the lens clamping front plate (5). The lens clamping front plate (5) is used in conjunction with the spring (6) to clamp and fix the fiber column lens (2) on the lens clamping rear plate (4); The laser diode fine-tuning bracket base (A) and / or lens clamping fine-tuning bracket base (B) are used to adjust the high-power semiconductor laser diode (1) and / or fiber column lens (2) in five dimensions.

2. The optical fiber pillar and diode fast-axis compression collimation device according to claim 1, characterized in that: The lens clamping rear plate (4) has a stepped support (41) on one side, and a connecting rod slide (42) is provided on the inner side wall of the lens clamping rear plate (4).

3. The fast-axis compression collimation device for the fiber optic column and diode according to claim 2, characterized in that: A handle (51) is fixedly connected to one side of the lens clamping front plate (5), and a connecting rod shaft (52) is installed on the other side of the lens clamping front plate (5). An end (53) is installed at the end of the connecting rod shaft (52) away from the lens clamping front plate (5). The outer side wall of the connecting rod shaft (52) is slidably connected to the inner side wall of the lens clamping rear plate (4), and the outer side wall of the end (53) is slidably connected to the inner side wall of the connecting rod slide (42). The spring (6) is sleeved on the side of the outer side wall of the connecting rod shaft (52) near the end (53).

4. The fast-axis compression collimation device for the fiber optic column and diode according to claim 1, characterized in that: The five dimensions are the three translational directions X, Y, and Z, and the two angular directions xy and xz.

5. The optical fiber pillar and diode fast-axis compression collimation device according to claim 1, characterized in that: The laser diode bracket (3) is made of aluminum or oxygen-free copper. The laser diode bracket (3) adopts a Г-shaped structure, and the length of the protruding part is L. 探 The width of the protruding part is W, and the length of the rear part of the lens clamping plate (4) is L. 后 The width of the concave hollow portion of the lens clamping rear plate (4) and the lens clamping front plate (5) is W. 内 ; Among them, L 探 Not less than L 后 W is less than W 内 .

6. The fast-axis compression collimation device for the fiber optic column and diode according to claim 1, characterized in that: The upper half of the lens clamping rear plate (4) and the lens clamping front plate (5) are both concave and are adapted to each other so that after the fiber column lens (2) is fixed, the beam emitted by the high-power semiconductor laser diode (1) can penetrate the fiber column lens (2) without obstruction through the concave hollow part.

7. The fast-axis compression collimation device for the fiber optic column and diode according to claim 2, characterized in that: The lens clamps the rear plate (4) with a vertical length H after it, and the lens clamps the front plate (5) with a vertical length H before it. Among them, the value after H is greater than the value before H; The width of the step support (41) is L, and the diameter of the fiber optic column lens (2) is D; Where L is less than D and L is greater than D / (2).

8. The fast-axis compression collimation device for fiber optic pillars and diodes according to claim 3, characterized in that: The number of each of the connecting rod shaft (52), connecting rod slide (42) and spring (6) is two. The two connecting rod slides (42) are symmetrically opened on the inner side wall of the lens clamping rear plate (4). The two connecting rod shafts (52) are symmetrically installed on one side of the lens clamping front plate (5). The outer side walls of the two connecting rod shafts (52) are slidably connected to the inner side walls of the two connecting rod slides (42). The two springs (6) are respectively sleeved on the outer side walls of the two connecting rod shafts (52).

9. The fast-axis compression collimation device for fiber optic pillars and diodes according to claim 3, characterized in that: The end (53) is a nut, and the outer side wall of the connecting rod shaft (52) away from the lens clamping front plate (5) is threaded. The inner side wall of the end (53) is threadedly connected to the outer side wall of the connecting rod shaft (52).

10. The fast-axis compression collimation device for the fiber optic column and diode according to claim 3, characterized in that: The end (53) and the connecting rod shaft (52) are an integral structure. The outer side wall of the connecting rod shaft (52) is threaded on the side near the lens clamping front plate (5), and the inner side wall of the lens clamping front plate (5) is threaded on the side. The outer side wall of the connecting rod shaft (52) is threadedly connected to the inner side wall of the lens clamping front plate (5).

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