Device for laser detection of beam splitter

Abstract

The utility model relates to the technical field of laser detection equipment, in particular to a device for laser detection of a beam splitter, which solves the problem that the angles of different beam splitters in a BOSA cannot be detected in the prior art, and comprises a fixed plate, a laser and a support seat for placing a BOSA tube shell are arranged on the fixed plate, and a detection assembly is arranged on the support seat; the detection assembly comprises an arc-shaped slide way and a vertical plate, the arc-shaped slide way is horizontally arranged on the supporting seat, the vertical plate is in sliding connection with the arc-shaped slide way, and a through hole is formed in the vertical plate. The beneficial effects generated by the utility model are that the laser emitted by the laser reaches the vertical plate after being reflected by the beam splitter, and whether the installation angle of the beam splitter in the BOSA tube shell is accurate is determined by determining the position of the reflected light on the vertical plate and the relative position of the through hole, so that the angle detection of the beam splitter in the BOSA is realized; when the reflected light passes through the through hole, the installation angle of the beam splitter in the BOSA tube shell is accurate, and the BOSA product is qualified.

Description

Technical Field

[0001] This utility model relates to the field of laser detection equipment technology, and in particular to a device for laser detection beam splitter. Background Technology

[0002] A BOSA, or Bidirectional Optical Module, is a crucial component of an optical module. It consists of a light-emitting section and a light-receiving section, capable of simultaneously transmitting and receiving optical signals. In a BOSA, the TOSA (Transmitting Optical Module) converts electrical signals into optical signals for transmission, while the ROSA (Receiving Optical Module) receives optical signals from the optical fiber and converts them back into electrical signals. These two components, through precise optical and electronic design, achieve efficient and stable optical signal transmission. The BOSA's structure includes a housing containing a beam splitter. The installation angle of the beam splitter directly affects the performance of the optical system, such as optical signal transmission efficiency, optical path alignment accuracy, and system stability. Currently, the beam splitter is not subject to quality inspection during the manufacturing process of BOSAs, resulting in a low yield rate.

[0003] Patent CN221612352U discloses a built-in optical path alignment device for a beam quality analyzer, including a laser, an angle-adjustable reflector group, a beam splitter, a measuring lens, a camera A, a horizontal guide rail, and a beam detection structure. The laser is used to generate a horizontal beam A. The angle-adjustable reflector group receives the horizontal beam A generated by the laser and reflects it out as another horizontal beam B. The beam splitter is used to receive the horizontal beam B and split a beam C perpendicular to the horizontal beam B. The measuring lens is vertically arranged, and the camera A is slidably mounted on the horizontal guide rail with its target surface vertically arranged. The beam detection structure is located on one side of the beam splitter and forms a detection surface that coincides with the center of the beam C. The aforementioned optical path alignment device detects the installation angle of the beam splitter through a beam detection structure, which has high accuracy. However, after the detection structure is installed, it can only detect one installation angle of the beam splitter. Since the angle of the beam splitter is different in different BOSS modules, the detection structure needs to be re-determined when detecting the angle of the beam splitter in different BOSS modules. This is cumbersome and costly, and the detection structure has low applicability, which is not conducive to large-scale promotion and application. Utility Model Content

[0004] This invention proposes a device for laser detection of beam splitters, which solves the problem in the prior art that it is impossible to detect the angle of beam splitters in different BOSAs.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A device for laser detection of beam splitters includes a fixed plate on which a laser and a support base for placing a BOSA (Bodily Optimized Offset Filter) housing are mounted. A detection component is mounted on the support base. The detection component includes an arc-shaped slide rail and a vertical plate. The arc-shaped slide rail is horizontally positioned on the support base, and the vertical plate is slidably connected to the arc-shaped slide rail. A through hole is provided on the vertical plate. The laser emitted by the laser is reflected by the beam splitter inside the BOSA housing and reaches the vertical plate. When the reflected laser passes through the through hole, the beam splitter's installation angle within the BOSA is accurate, indicating that the BOSA product is qualified. By adjusting the position of the vertical plate on the arc-shaped slide rail, the installation angle of the beam splitter within different BOSAs can be detected, enhancing the applicability of the device.

[0007] The height of the through-hole is equal to the height of the laser beam emitted by the laser. This ensures that the light rays reflected by the beam splitter are on the same horizontal plane as the through-hole, preventing the reflected light rays from being located above or below the through-hole and thus unable to enter.

[0008] The arc-shaped slide is equipped with angle scale lines. By observing the alignment of the upright plate with the angle scale lines, the relative angle of the upright plate can be determined, thereby determining the position of the through hole, enabling the detection component to be adapted to BOSA tube housings with different beam splitter mounting angles.

[0009] The center of the arc-shaped slide coincides with the laser reflection point on the beam splitter inside the BOSA tube housing. When the beam splitter is installed at an accurate angle, the light reflected by the beam splitter is perpendicular to the vertical plate, ensuring detection accuracy.

[0010] The support base is equipped with a three-dimensional limiting platform, on which the BOSA tube shell is placed. The beam splitter is set inside the BOSA tube shell. After detecting the angle position of the beam splitter inside the BOSA, the BOSA tube shell can be removed to detect the angle of other beam splitters inside the BOSA. The BOSA tube shell is simple to position and easy to operate, facilitating the detection of angles of beam splitters inside a large number of BOSAs.

[0011] The BOSA housing has a light inlet and a light outlet. The light inlet corresponds to the laser, and the light outlet corresponds to the detection component. The laser emitted by the laser enters the BOSA housing through the light inlet, is reflected by the beam splitter inside the BOSA housing, and then exits through the light outlet to the detection component.

[0012] The three-dimensional positioning platform includes a first positioning surface, a second positioning surface, and a third positioning surface. The first and second positioning surfaces are arranged perpendicular to each other, as are the second and third positioning surfaces. These three surfaces work together to position the BOSA tube shell. The BOSA tube shell positioning method is simple and facilitates the rapid installation of the beam splitter.

[0013] The laser's input terminal is connected to a laser driver, which in turn is connected to a power connector. A retaining ring is provided on the mounting plate, and the laser is mounted on the retaining ring. The retaining ring is connected to the mounting plate with screws, ensuring stable mounting of the laser on the mounting plate.

[0014] The fixed plate is equipped with a slide rail arranged along the laser emission direction of the laser, and the support base is slidably connected to the slide rail. The distance between the beam splitter and the laser can be adjusted by moving the support base along the slide rail.

[0015] The beneficial effects of this invention are as follows: the laser emitted by the laser is reflected by the beam splitter and reaches the vertical plate. By determining the position of the reflected light on the vertical plate and the relative position of the through hole, the installation angle of the beam splitter inside the BOSA tube shell can be determined to be accurate, thereby realizing the angle detection of the beam splitter inside the BOSA. When the reflected light passes through the through hole, the installation angle of the beam splitter inside the BOSA tube shell is accurate, and the BOSA product is qualified.

[0016] Changing the relative position of the vertical plate on the arc-shaped slide can adjust the relative position of the through hole and the beam splitter, enabling the device to detect the installation angle of the beam splitter inside different BOSA tube shells, thus enhancing the applicability of the device.

[0017] The three-dimensional positioning platform quickly locates the position of the BOSA tube shell. After detecting the angle position of the beam splitter inside the BOSA, the BOSA tube shell can be removed to detect the angle of other beam splitters inside the BOSA. The positioning of the BOSA tube shell is simple and easy to operate, which facilitates the detection of the angle of beam splitters inside a large number of BOSAs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a laser detection beam splitter according to the present invention.

[0020] Figure 2 This is a schematic diagram of the support structure.

[0021] In the diagram: 1. Fixing plate, 2. Power connector, 3. Laser driver, 4. Laser, 5. Fixing ring, 6. Slide rail, 7. Detection component, 8. Support base, 9. BOSA tube shell, 81. First limiting surface, 82. Second limiting surface, 83. Third limiting surface, 71. Arc-shaped slide, 72. Vertical plate, 73. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1, as Figure 1 , Figure 2 As shown, a device for laser detection of a beam splitter includes a fixed plate 1, on which a laser 4 and a support base 8 for placing a BOSA tube shell 9 are mounted. The support base 8 is equipped with a detection component 7. The detection component 7 includes an arc-shaped slide 71 and a vertical plate 72. The arc-shaped slide 71 is horizontally positioned on the support base 8, and the vertical plate 72 is slidably connected to the arc-shaped slide 71. The vertical plate 72 has a through hole 73. When detecting the installation angle of the beam splitter inside the BOSA tube shell 9, the BOSA tube shell 9 is placed on the support base 8. The laser 4 emits a laser beam towards the beam splitter. After being reflected by the beam splitter, the laser beam irradiates the vertical plate 72. By judging the relative position of the laser irradiation point and the vertical plate 72, the accuracy of the installation angle of the beam splitter inside the BOSA tube shell 9 is determined, thereby determining whether the BOSA product is qualified. Specifically, when the reflected light passes through the through hole 73, the beam splitter installation position is accurate.

[0024] When it is necessary to inspect the beam splitter position of another BOSA product model, the angle of the reflected laser is calculated based on the beam splitter installation angle. Then, the upright plate 72 is adjusted according to the angle of the reflected laser, allowing it to slide within the arc-shaped slide rail 71, thereby adjusting the position of the through hole 73. After adjusting the position of the through hole 73, another BOSA product model is placed on the support base 8 for batch inspection of the beam splitter installation position. The inspection device has a simple adjustment method and is easy to operate. It can be applied to the inspection of the beam splitter installation position in different BOSA products, making the inspection device highly applicable and conducive to large-scale promotion and use.

[0025] Furthermore, the height of the through-hole 73 is equal to the height of the laser emitted by the laser 4. This ensures that the light rays reflected by the beam splitter are on the same horizontal plane as the through-hole 73, preventing the reflected light rays from being located above or below the through-hole 73 and thus preventing the light rays from entering the through-hole 73.

[0026] Furthermore, the curved slide 71 is equipped with angle scale lines. Operators can accurately determine the relative position of the upright plate 72 and the laser 4 through the angle scale lines, improving detection accuracy. Specifically, the deflection angle of the upright plate 72 is calculated from the deflection angle of the beam splitter inside the BOSA housing 9 to be tested. Then, the deflection angle of the upright plate 72 is determined by checking the alignment position of the upright plate 72 with the angle scale lines, ensuring the positional accuracy of the upright plate 72 and improving the accuracy of beam splitter angle detection.

[0027] Furthermore, the center of the arc-shaped slide 71 coincides with the laser reflection point on the beam splitter inside the BOSA tube housing 9. When the beam splitter is installed at an accurate angle, the light reflected by the beam splitter is perpendicular to the vertical plate 72, ensuring detection accuracy.

[0028] Example 2, based on Example 1, provides a device for detecting a laser beam splitter, such as... Figure 2 As shown, a three-dimensional positioning platform is provided on the support base 8, on which the BOSA tube shell 9 is placed. The three-dimensional positioning platform includes a first positioning surface 81, a second positioning surface 82, and a third positioning surface 83. The first positioning surface 81 and the second positioning surface 82 are arranged perpendicular to each other, as are the second positioning surface 82 and the third positioning surface 83. The first positioning surface 81, the second positioning surface 82, and the third positioning surface 83 work together to position the BOSA tube shell 9. The positioning method of the BOSA tube shell 9 is simple, and the three-dimensional positioning platform can quickly position the BOSA tube shell, facilitating the rapid replacement of the BOSA tube shell 9 on the support base 8 and benefiting the large-scale testing of BOSA products.

[0029] Furthermore, the BOSA housing 9 is provided with a light inlet and a light outlet. The light inlet corresponds to the laser 4, and the light outlet corresponds to the detection component 7. The light inlet and the light outlet are located on two adjacent sides of the BOSA housing 9. The laser emitted by the laser 4 enters the BOSA housing 9 through the light inlet, and after being reflected by the beam splitter inside the BOSA housing 9, it exits through the light outlet to the detection component 7.

[0030] The input terminal of laser 4 is connected to laser driver 3, and laser driver 3 is connected to power connector 2. Power connector 2 is connected to a power source. A fixing ring 5 is provided on the fixing plate 1, and laser 4 is mounted on the fixing ring 5. The fixing ring 5 is fixed to the fixing plate 1 with screws, ensuring that laser 4 is stably installed on the fixing plate 1.

[0031] Furthermore, the fixed plate 1 is provided with a slide rail 6 arranged along the laser emission direction of the laser 4, and the support base 8 is slidably connected to the slide rail 6. The support base 8 can adjust the distance between the beam splitter inside the BOSA tube housing 9 and the laser 4 by moving along the slide rail 6. The laser power can be adjusted by adjusting the distance between the laser and the beam splitter, which can accommodate various laser types with different power levels.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for laser detection of a beam splitter, comprising a fixing plate (1), on which a laser (4) is mounted and a support (8) for placing a BOSA tube shell (9), characterized in that, The support base (8) is provided with a detection component (7); the detection component (7) includes an arc-shaped slide (71) and a vertical plate (72). The arc-shaped slide (71) is horizontally set on the support base (8), and the vertical plate (72) is slidably connected to the arc-shaped slide (71). The vertical plate (72) is provided with a through hole (73).

2. The apparatus for detecting a laser beam splitter according to claim 1, characterized in that, The height of the through hole (73) is equal to the height at which the laser (4) emits laser light.

3. The apparatus for laser detection of beam splitters according to claim 2, characterized in that, Angle scale lines are provided on the curved slide (71).

4. The apparatus for laser detection of beam splitters according to claim 3, characterized in that, The center of the arc-shaped slide (71) coincides with the laser reflection point on the beam splitter inside the BOSA tube shell (9).

5. The apparatus for detecting a laser beam splitter according to any one of claims 1 to 4, characterized in that, A three-dimensional limiting platform is provided on the support base (8), and the BOSA tube shell (9) is placed on the three-dimensional limiting platform.

6. The apparatus for laser detection of beam splitters according to claim 5, characterized in that, The BOSA housing (9) is provided with an inlet hole and an outlet hole. The inlet hole corresponds to the laser (4), and the outlet hole corresponds to the detection component (7).

7. The apparatus for laser detection of beam splitters according to claim 6, characterized in that, The three-dimensional limiting platform includes a first limiting surface (81), a second limiting surface (82) and a third limiting surface (83). The first limiting surface (81) and the second limiting surface (82) are arranged perpendicular to each other, the second limiting surface (82) and the third limiting surface (83) are arranged perpendicular to each other, and the first limiting surface (81) and the third limiting surface (83) are arranged perpendicular to each other.

8. The apparatus for laser detection beam splitter according to claim 1 or 7, characterized in that, The input terminal of the laser (4) is connected to the laser driver (3), and the laser driver (3) is connected to the power connector (2).

9. The apparatus for laser detection of beam splitters according to claim 8, characterized in that, A fixing ring (5) is provided on the fixing plate (1), and the laser (4) is set on the fixing ring (5).

10. The apparatus for detecting a laser beam splitter according to claim 1 or 9, characterized in that, The fixed plate (1) is provided with a slide rail (6) arranged along the laser emission direction of the laser (4), and the support base (8) is slidably connected to the slide rail (6).

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