A coaxial coupling laser array aging system

Abstract

The application discloses a coaxial coupling laser array aging system, which comprises a base plate, a support, a vertical pressing device, a crossbeam, a guide, a light absorption plate, a light shield and an adjustable positioning mechanism. The base plate is provided with at least two supports which are spaced apart and fixed on the base plate, and each support is provided with a vertical pressing device. The crossbeam is connected with the guide at both ends and can slide up and down along the guide, and the guide is fixed on the base plate. The vertical pressing device is connected with the crossbeam and is used for driving the crossbeam to slide up and down along the guide. The light absorption plate is fixed on the base plate and located on one side of the crossbeam. The light shield is arranged above the light absorption plate, and the light shield is provided with a light inlet between the lower part and the base plate. The adjustable positioning mechanism is connected with the crossbeam. The aging system can simultaneously fix a plurality of small-power coaxial coupling lasers with different specifications, is firm and convenient, and can effectively eliminate the laser pollution problem caused by the reflection of the light shield to the laser.

Description

Technical Field

[0001] This invention relates to the field of laser aging technology, and more specifically to a coaxially coupled laser array aging system. Background Technology

[0002] The information disclosed in the background section of this invention is intended only to enhance the understanding of the overall background of the invention and is not necessarily to be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0003] Low-power coaxially coupled lasers come in various shapes and require sophisticated aging fixtures. Designing different fixtures to hold the laser housing and dissipate heat would inevitably increase costs significantly. Low-power coaxially coupled lasers generally do not use optical fibers during the aging process. The laser light shines directly onto a light-shielding plate that has been treated to prevent laser reflection. However, due to limitations in anti-reflection technology, some laser light is still reflected. Furthermore, the laser is mostly fixed using screw connections and clamps, which is inefficient and prone to thread damage or even complete failure due to prolonged screw tightening.

[0004] In summary, the inventors have found that existing low-power coaxially coupled laser aging fixtures have the following shortcomings: (1) They are not compatible with the fixing of lasers of various shapes and sizes. (2) Fixing the laser takes a long time, and the fasteners are easily damaged. (3) The light-shielding plate cannot absorb the laser well, and some laser is still reflected, posing a risk of laser contamination. Summary of the Invention

[0005] In view of this, the present invention provides a coaxially coupled laser array aging system, which can simultaneously fix multiple low-power coaxially coupled lasers of different specifications. This system not only provides secure and convenient fixing but also effectively eliminates laser contamination caused by laser reflection from the light-shielding plate. To achieve the above objectives, the present invention discloses the following technical solution.

[0006] A coaxially coupled laser array aging system includes: a substrate, support members, a vertical pressure fixture, a crossbeam, a guide member, a light-absorbing plate, a light-shielding cover, and an adjustable positioning mechanism. At least two spaced-apart support members are fixed to the substrate, and a vertical pressure fixture is fixed to each support member. Both ends of the crossbeam are connected to the guide member, and the crossbeam is capable of sliding up and down along the guide member, which is fixed to the substrate. The vertical pressure fixture is connected to the crossbeam to drive the crossbeam to slide up and down along the guide member. The light-absorbing plate is fixed to the substrate and located on one side of the crossbeam. The light-shielding cover covers the light-absorbing plate, and the lower part of the light-shielding cover has a light inlet between itself and the substrate, so that the light beam from the laser under test can be incident on the light-absorbing plate. The adjustable positioning mechanism includes: a sliding rod, a limiting member, a universal pressure head, and a spring. At least one sliding rod is vertically slidably disposed on the crossbeam, and the limiting member is located on the upper surface of the crossbeam and connected to the upper end of the sliding rod. The universal pressure head is connected to the lower end of the slide rod and is used to press the laser below it. The spring is sleeved on the slide rod and is located between the crossbeam and the universal pressure head.

[0007] Furthermore, it also includes a carrier located below the universal pressure head, which is used to place the laser to be tested, and the laser beam is incident on the light-absorbing plate through the light inlet. Preferably, the upper surface of the carrier has a slot, and each universal pressure head corresponds to a slot, so as to align the laser limited in the slot with the upper universal pressure head.

[0008] Furthermore, a positioning element is fixed below the adjustable positioning mechanism, which restricts the carrier component to be positioned below the universal pressure head. This arrangement facilitates the replacement of carrier components with slots of different specifications, thereby enabling the installation and testing of lasers of different specifications.

[0009] Furthermore, the positioning element is a long strip structure with bends at both ends, thereby forming a space to accommodate and limit the support element. This positioning element is fixed below the adjustable positioning mechanism on the base plate.

[0010] Furthermore, the edge of the light shield adjacent to the adjustable positioning mechanism is bent downwards, and the light inlet is formed between this edge and the substrate. The edges of the light shield on both sides of this edge are sealed to the substrate to prevent reflected laser leakage.

[0011] Furthermore, the light-absorbing plate includes a vertical plate and several horizontal plates fixed vertically to the vertical plate. These horizontal plates are spaced apart from bottom to top, which helps to further prevent leakage of reflected laser light formed after the light beam is incident on the vertical plate.

[0012] Further, the vertical press includes: a fixed frame, a linkage plate, a handle, an L-shaped linkage bar, a telescopic component, and a crossbeam connector. The fixed frame is fixed to a support member, which is fixed to a base plate. One end of the linkage plate is rotatably connected to the upper end of the fixed frame, and one end of the handle is fixedly connected to the linkage plate. The upper end of the L-shaped linkage bar is rotatably connected to the linkage plate, and the lower end of the L-shaped linkage bar is rotatably connected to the upper end of the telescopic component. The lower end of the telescopic component passes through a guide hole on a guide plate of the fixed frame and connects to the crossbeam connector, which connects to the crossbeam to drive the crossbeam to slide up and down along the guide member.

[0013] Furthermore, the lower end of the slide bar is ball-jointed with the universal pressure head, thereby allowing the universal pressure head to rotate in any direction for pressing various lasers.

[0014] Furthermore, the lower part of the slide bar has a limiting part, the lower end of the spring abuts against the limiting part, and the upper end of the spring abuts against the lower surface of the crossbeam.

[0015] Furthermore, the substrate includes a cooling mechanism to dissipate heat from the light-absorbing plate and the laser. Optionally, the cooling mechanism includes cooling pipes for the flow of a refrigerant, such as water or air.

[0016] Furthermore, each side of the light-absorbing plate and the light-shielding cover is provided with a laser positioning mechanism, which includes the support member, vertical pressure fixture, crossbeam, guide member and adjustable positioning mechanism, so as to facilitate the simultaneous testing of more lasers.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] (1) This invention proposes a novel coaxially coupled laser array aging system. It can clamp multiple lasers under test simultaneously using a vertical clamp and an adjustable positioning mechanism mounted on a crossbeam, offering flexible and convenient operation and significantly improving testing efficiency. Furthermore, since the adjustable positioning mechanisms mounted on the crossbeam do not interfere with each other, it can accommodate the clamping and fixing of lasers of different specifications. In addition, the universal clamping head, which can rotate in any direction, automatically adjusts its direction according to the shape of the laser during the pressing process, ensuring close contact between the clamping head and the laser and improving the pressing firmness.

[0019] (2) In the coaxially coupled laser array aging system of the present invention, after the laser enters the light shield through the light inlet, the small amount of reflected laser generated after the laser irradiates the surface of the light absorber can be effectively blocked inside the light shield, thus preventing the problem of laser leakage. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 The following is a schematic diagram of the structure of the semiconductor laser chip in the embodiments.

[0022] Figure 2 This is a front view of the semiconductor laser chip in the following embodiments.

[0023] Figure 3 This is a side view of the semiconductor laser chip in the following embodiments.

[0024] Figure 4 This is a top view of the semiconductor laser chip in the following embodiments.

[0025] Figure 5 The following is a partial cross-sectional view of the semiconductor laser chip in the embodiments.

[0026] Figure 6 The following is a schematic diagram of the adjustable positioning mechanism in the embodiments below.

[0027] The numbers represent the following components: 1-Baseboard, 2-Support, 3-Vertical press, 4-Crossbeam, 5-Guide, 6-Light-absorbing plate, 7-Light shield, 8-Adjustable positioning mechanism, 9-Light inlet, 10-Bearing component, 11-Slot, 12-Positioning component, 301-Fixed frame, 302-Linkage plate, 303-Handle, 304-L-shaped linkage bar, 305-Telescopic component, 306-Crossbeam connector, 307-Guide plate, 308-First rotating shaft, 309-Second rotating shaft, 310-Third rotating shaft, 311-Fourth rotating shaft, 601-Vertical plate, 602-Horizontal plate, 801-Slide rod, 802-Limiting component, 803-Universal pressure head, 804-Spring. Detailed Implementation

[0028] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] For ease of description, the terms "up," "down," "left," and "right" appearing in this invention only indicate that they correspond to the up, down, left, and right directions in the accompanying drawings. They do not limit the structure and are merely for the purpose of describing the invention and simplifying the description. They do not indicate or imply that the device or component referred to needs to have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The coaxial coupled laser array aging system of the present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0030] refer to Figures 1 to 6 An example of a coaxially coupled laser array aging system includes: a substrate 1, a support 2, a vertical clamp 3, a crossbeam 4, a guide 5, a light-absorbing plate 6, a light-shielding cover 7, and an adjustable positioning mechanism 8. Wherein:

[0031] The base plate 1 is a horizontally arranged plate, mainly used for mounting and supporting various components. Two support members 2 form a group, and these two support members 2 are respectively distributed at both ends of the base plate 1. Each support member 2 is fixed with a set of vertical clamps 3. Specifically, refer to... Figure 6 The vertical pressure fixture 3 includes: a fixed frame 301, a linkage plate 302, a handle 303, an L-shaped linkage bar 304, a telescopic component 305, and a crossbeam connector 306. Specifically: the fixed frame 301 is fixedly connected to the support member 2 by bolts or other fasteners. One end of the linkage plate 302 is rotatably connected to the upper end of the fixed frame 301 via a first rotating shaft 308, allowing the linkage plate 302 to rotate up and down around the first rotating shaft 308. One end of the handle 303 is fixedly connected to the end of the linkage plate 302 via a second rotating shaft 309. Pressing down or lifting the handle 303 causes the linkage plate 302 to rotate up and down around the first rotating shaft 308, which in turn causes the telescopic component 305 to move up and down via the L-shaped linkage bar 304, and temporarily locks it in place. The upper end of the L-shaped linkage bar 304 is rotatably connected to the upper end of the linkage plate 302 via a third rotating shaft 310, and the lower end of the L-shaped linkage bar 304 is rotatably connected to the upper end of the telescopic member 305 via a fourth rotating shaft 311, so that the L-shaped linkage bar 304 can rotate up and down around the fourth rotating shaft 311, thereby driving the telescopic member 305 to move up and down. The lower end of the telescopic member 305 passes through the guide hole on the guide plate 307 on the fixed frame 301 and is connected to the crossbeam connector 306.

[0032] The inner sides of the two support members 2 are each vertically fixed with an optical axis as a guide member 5. The crossbeam 4 is a long strip structure. The crossbeam 4 is slidably sleeved on the guide member 5 through the sliding holes at both ends. The crossbeam connector 306 is connected to the end of the crossbeam 4 so that the crossbeam 4 can be driven to slide up and down along the guide member 5 when the telescopic member 305 moves up and down.

[0033] The light-absorbing plate 6 is vertically fixed to the substrate 1 and located on one side of the crossbeam 4. The light-shielding cover 7 covers the light-absorbing plate 6. The edge of the light-shielding cover 7 adjacent to the crossbeam 4 or the adjustable positioning mechanism 8 is bent downwards, forming a light inlet 9 between this edge and the substrate 1. The laser beam enters the light-absorbing plate 6 through the light inlet 9. The edges of the light-shielding cover 7 on both sides are sealed to the substrate 1 to prevent laser leakage.

[0034] refer to Figure 5 The adjustable positioning mechanism 8 includes: a slide rod 801, a limiting member 802, a universal pressure head 803, and a spring 804. Several sliding holes are distributed on the upper and lower surfaces of the crossbeam. Several slide rods 801 are arranged side-by-side and vertically sliding in the sliding holes to guide and constrain the movement of the slide rods 801, allowing them to move up and down to clamp or release the laser under test. The limiting member 802 is threadedly connected to its top end located above the crossbeam 4. Its main function is to lift the limiting member 802 when the telescopic member 305 moves upward, causing the crossbeam 4 to rise, thereby carrying the slide rods 801 upward. The lower end of the slide rod 801 is ball-jointed with the universal pressure head 804, allowing the universal pressure head 804 to rotate in any direction for clamping various lasers. The spring 804 is sleeved on the slide rod 801, and the lower part of the slide rod 801 has a protruding annular limiting part. The lower end of the spring 804 abuts against the limiting part, and the upper end of the spring 804 abuts against the lower surface of the crossbeam 4. Thus, the extrusion force formed by the compression spring 804 is used to press and tighten the laser under the universal pressure head 804. Moreover, since the various adjustable positioning mechanisms 8 distributed on the crossbeam 4 do not interfere with each other, they can accommodate the clamping and fixing of lasers of different specifications. For example, when it is necessary to test lasers of different heights, since the slide rod 801 can be raised to different heights along the sliding hole in the lifting crossbeam 4, the universal pressure head 804 can be used to press lasers of different heights. At the same time, the restoring force generated by the compression of the spring 804 by the upward lifting of the slide rod 801 along the sliding hole can firmly press the universal pressure head 804 onto the laser. In addition, since the universal pressure head can rotate in any direction, it can automatically adjust the direction of the pressure head according to the shape of the laser during the pressing process, ensuring that the pressure head is in close contact with the laser and improving the pressing firmness.

[0035] refer to Figure 1 , Figure 3 , Figure 5In another embodiment, the axially coupled laser array aging system exemplified in the above embodiment further includes a support member 10 located below the universal pressure head 803. The support member 10 is a long strip structure with a slot 11 on its upper surface. Each universal pressure head 803 is provided with a slot 11 to facilitate the insertion of the laser under test into the slot 11 for positioning and constraint, thereby allowing the universal pressure head 803 to press the laser more precisely and improve the installation efficiency of the laser.

[0036] refer to Figure 1 and Figure 4 In another embodiment, in the axially coupled laser array aging system exemplified in the above embodiment, a positioning member 12 is fixed on the substrate 1. It is located below the adjustable positioning mechanism 8 and distributed along the length direction of the crossbeam 4. Specifically, the positioning member 12 is a long strip structure with 90° bends at both ends, thereby forming a space to accommodate and limit the carrier member 10, so as to restrict the carrier member 10 below the universal pressure head 803. This arrangement facilitates the replacement of carrier members 10 with different specifications of slots 11, thereby enabling the installation and testing of lasers of different specifications.

[0037] refer to Figure 5 In another embodiment, in the axially coupled laser array aging system exemplified in the above embodiments, the light-absorbing plate 6 includes a vertical plate 601 and a plurality of horizontal plates 602 vertically fixed on the vertical plate 601. These horizontal plates 602 are spaced apart from bottom to top, which helps to further prevent leakage of reflected laser light formed after the beam is incident on the vertical plate 601.

[0038] In another embodiment, in the axially coupled laser array aging system exemplified in the above embodiment, the substrate 1 also has a cooling mechanism, which is a cooling pipe or the like that allows the flow of a cooling medium, including water, air, etc., and the heat generated by the laser is carried away by the flow of the cooling medium.

[0039] In another embodiment, in the axially coupled laser array aging system exemplified in the above embodiment, a laser positioning mechanism is provided on each side of the light-absorbing plate 6 and the light-shielding cover 7, including the support member 2, the vertical pressure fixture 3, the crossbeam 4, the guide member 5 and the adjustable positioning mechanism 8, so as to facilitate the simultaneous testing of more lasers.

[0040] In use, first press down the handle 303. Under the action of the L-shaped linkage bar 304, the telescopic member 305 moves upward, simultaneously carrying the crossbeam 4 and the adjustable positioning mechanism 8 upward to make room for placing the laser under test below the adjustable positioning mechanism 8. During placement, place the laser under test in the slot 11 on the support member 10 below the universal pressure head 803, and align the light-emitting end of the laser with the light inlet 9 formed between the edge of the light-absorbing plate 6 and the substrate 1, so that the laser beam can enter the light-absorbing plate 6 from the light inlet 9. Then, when the handle 303 is lifted upwards, the telescopic member 305 moves downwards, simultaneously carrying the crossbeam 4 downwards. During this process, the universal pressure head 803 of the adjustable positioning mechanism 8 gradually presses against the laser. As the crossbeam 4 continues to move downwards, the universal pressure head 803 continues to move downwards under the constraint of the laser, forcing the crossbeam 4 to move downwards alone with the telescopic member 305. Meanwhile, the slide rod 801 moves upwards relative to the slide hole on the crossbeam 4, thereby compressing the spring 804 and generating a rebound / restoring force, forcing the universal pressure head 804 to firmly press against the laser. When the handle 303 is lifted to its limit, temporary locking positioning can be achieved, allowing the pressure head 804 to continuously clamp the laser. When the handle 303 is pressed downwards again, the temporary locking positioning can be released under external force, allowing the crossbeam 4 and the adjustable positioning mechanism 8 to move upwards as a whole, so that the laser after testing can be removed.

[0041] Finally, it should be noted that any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention. Although specific embodiments of this invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this invention are still within the scope of protection of this invention.

Claims

1. A coaxially coupled laser array aging system, characterized in that, include: Substrate, support components, vertical clamps, crossbeams, guide components, light-absorbing plates, light shields, and adjustable positioning mechanisms; At least two spaced-apart support members are fixed on the substrate, and each support member is fixed with a vertical presser; both ends of the crossbeam are connected to guide members, and the crossbeam can slide up and down along the guide members, which are fixed on the substrate; the vertical presser is connected to the crossbeam and is used to drive the crossbeam to slide up and down along the guide members; the light-absorbing plate is fixed on the substrate and located on one side of the crossbeam. The light shield covers the light-absorbing plate, and the lower part of the light shield has a light inlet between it and the substrate. The adjustable positioning mechanism includes: a slide rod, a limiting member, a universal pressure head, and a spring; at least one of the slide rods is vertically slidably mounted on a crossbeam, the limiting member is located on the upper surface of the crossbeam and is connected to the upper end of the slide rod; the universal pressure head is connected to the lower end of the slide rod and is used to press the laser below it; the spring is sleeved on the slide rod and is located between the crossbeam and the universal pressure head; The edge of the light shield adjacent to the adjustable positioning mechanism is bent downwards, and the light inlet is formed between the edge and the substrate; the edges of the light shield on both sides of the edge are sealed to the substrate. The light-absorbing plate includes a vertical plate and several horizontal plates that are vertically fixed on the vertical plate. These horizontal plates are spaced apart from bottom to top. Each side of the light-absorbing plate and the light shield is provided with a laser positioning mechanism, which includes the support member, vertical pressure fixture, crossbeam, guide member and adjustable positioning mechanism.

2. The coaxially coupled laser array aging system according to claim 1, characterized in that, It also includes a support member located below the universal pressure head, which is used to place the laser to be tested, and the laser beam is incident on the light-absorbing plate through the light inlet.

3. The coaxially coupled laser array aging system according to claim 2, characterized in that, The upper surface of the carrier has a slot, and each universal pressure head corresponds to one slot.

4. The coaxially coupled laser array aging system according to claim 2, characterized in that, A positioning element is fixed below the adjustable positioning mechanism, which restricts the bearing element below the universal pressure head.

5. The coaxially coupled laser array aging system according to claim 4, characterized in that, The positioning element is a long strip structure with 90° bends at both ends, thereby forming a space to accommodate and limit the bearing element; the positioning element is fixed below the adjustable positioning mechanism on the base plate.

6. The coaxially coupled laser array aging system according to claim 1, characterized in that, The vertical press includes: a fixed frame, a linkage plate, a handle, an L-shaped linkage bar, a telescopic component, and a crossbeam connector; wherein: the fixed frame is fixed to a support member, and the support member is fixed to a base plate; one end of the linkage plate is rotatably connected to the upper end of the fixed frame, and one end of the handle is fixedly connected to the linkage plate; the upper end of the L-shaped linkage bar is rotatably connected to the linkage plate, and the lower end of the L-shaped linkage bar is rotatably connected to the upper end of the telescopic component; the lower end of the telescopic component passes through a guide hole on a guide plate on the fixed frame and is connected to the crossbeam connector, which is connected to the crossbeam.

7. The coaxially coupled laser array aging system according to claim 1, characterized in that, The lower end of the slide rod is ball-jointed with the universal pressure head.

8. The coaxially coupled laser array aging system according to claim 1, characterized in that, The lower part of the slide bar has a limiting part, the lower end of the spring abuts against the limiting part, and the upper end of the spring abuts against the lower surface of the crossbeam.

9. The coaxially coupled laser array aging system according to any one of claims 1-8, characterized in that, The substrate has a cooling mechanism.

10. The coaxially coupled laser array aging system according to claim 9, characterized in that, The cooling mechanism includes cooling pipes that allow refrigerant to flow through.

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