CN217424716U

CN217424716U - Laser pumping source module aging device

Info

Publication number: CN217424716U
Application number: CN202220146501.0U
Authority: CN
Inventors: 王兴辉; 陈志远; 王以静
Original assignee: Zhongjiu Optoelectronic Industry Co ltd
Current assignee: Zhongjiu Optoelectronic Industry Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-09-13
Anticipated expiration: 2032-01-19

Abstract

The utility model relates to a fiber laser technical field especially relates to a laser pumping source module aging device, including optic fibre and beam receiving device, the one end and the laser instrument of optic fibre are connected, and in the other end embedding beam receiving device's the receiving hole, be equipped with one in the beam receiving device with the receiving chamber of receiving hole intercommunication, one side that optic fibre was kept away from in the receiving chamber is the hemisphere, and beam receiving device's side is equipped with optic fibre clamping component and push-and-pull subassembly, optic fibre clamping component presss from both sides optic fibre tightly, push-and-pull subassembly is connected with optic fibre clamping component and can adjusts the distance between optic fibre clamping component to the beam receiving device. In the utility model, the distance from the optical fiber clamping component to the light beam receiving device can be adjusted through the push-pull component, and the safety is higher; the shape of the receiving cavity can enable the light beam to be reflected in the cavity for multiple times, the effect of the cavity with the spherical structure on light energy conversion is close to 100%, and the damage which can not be sensed by an operator is effectively reduced.

Description

Laser pumping source module aging device

Technical Field

The utility model relates to a fiber laser technical field especially relates to a laser pumping source module aging device.

Background

The laser pumping source module is generally subjected to a module aging process in the production process, wherein the module aging process refers to the fact that the laser module continuously works for a certain time under the rated working current so as to test the working stability of the laser module, and whether the output performance of the laser module in the working period meets the standard or not can be monitored in the aging process. Several issues need to be considered for the module aging process: when the high-power laser pumping source module works normally, high-energy laser beams can be generated, for example, the light beams directly irradiate the surface of a human body or other objects which do not resist high temperature and threaten the life safety of personnel, so the mode of fixing the optical fiber output end of the module by operating personnel influences the emission direction of the light beams so as to determine the safety of aging work; the high energy laser beam must be designed to be a receiving device that needs to achieve high absorption of light and can house optoelectronic devices to ensure safety and performance detectability of the module output.

Because the module needs to be powered on uninterruptedly in the aging process, the light-emitting state of the optical fiber output end is observed through the infrared observation instrument to adjust the position of the optical fiber, the existing optical fiber output end clamping device can only adjust the position of the optical fiber output end in a mode of loosening a clamp, the adjustment mode needs personnel to directly contact the optical fiber output end, the collision of the output end is easy to cause optical fiber loss, and the safety risk of displacement caused by touching other modules also exists in the operation process; the existing light beam receiving device is cylindrical groove metal, the surface of the metal is provided with a design of black high-temperature-resistant coating, when the device works, light beams are emitted into the groove, the absorption of light beam energy is completed by utilizing the high absorption rate of special coating to spectrum, and finally the energy is guided into a cooling system, because the coating can not absorb 100% of full-spectrum wave bands, the rest reflected light can cause harm to operators.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an ageing device of laser pumping source module.

The utility model adopts the following technical scheme: the laser pumping source module aging device comprises an optical fiber and a light beam receiving device, wherein one end of the optical fiber is connected with a laser, the other end of the optical fiber is embedded into a receiving hole of the light beam receiving device, a receiving cavity communicated with the receiving hole is arranged in the light beam receiving device, one side, away from the optical fiber, of the receiving cavity is hemispherical, an optical fiber clamping component and a push-pull component are arranged at the side end of the light beam receiving device, the optical fiber is clamped by the optical fiber clamping component, and the push-pull component is connected with the optical fiber clamping component and can adjust the distance between the optical fiber clamping component and the light beam receiving device.

Preferably, the optical fiber clamping assembly and the push-pull assembly are both arranged on the bottom plate, the push-pull assembly is fixedly connected with the bottom plate, and the optical fiber clamping assembly is connected with the bottom plate in a sliding mode.

Preferably, the optical fiber clamping assembly comprises a base and a pressing plate, the pressing plate is hinged to the upper end face of the base, the lower end face of the base is connected with the bottom plate in a sliding mode, a rubber rod coaxial with the optical fiber is embedded in the lower end face of the pressing plate, and the rubber rod is matched with the upper end face of the base to clamp the optical fiber.

Preferably, one end of the pressing plate, which is not hinged to the base, is provided with a positioning column, the pressing plate is penetrated through by the positioning column, and the lower end of the positioning column is connected with the upper end face of the base in a magnetic absorption manner.

Preferably, the upper end face of the base is provided with a plurality of guide blocks which are coaxially distributed with the optical fibers, the guide blocks are provided with clamping grooves with openings at the left end, the right end and the upper end, and the bottom surfaces of the clamping grooves are the upper end faces of the base.

Preferably, the push-pull assembly is arranged on the right side of the optical fiber clamping assembly and comprises a positioning seat, a push rod, a connecting rod and a connecting column, two vertical plates perpendicular to each other are arranged at the left end and the right end of the positioning seat, the lower end of the push rod is hinged to the vertical plate on the right side, one end of the connecting column is fixedly connected with the base, the other end of the connecting column penetrates through the vertical plate on the left side, one end of the connecting rod is hinged to the middle of the push rod, and the other end of the connecting rod is hinged to the connecting column.

Preferably, a guide cylinder is further arranged on the left side of the positioning seat, the guide cylinder is connected with the side wall of the left vertical plate, and the connecting column penetrates through the guide cylinder and is matched with the guide cylinder.

Preferably, the push-pull assembly is located on the rear side of the optical fiber, and the connecting column is connected with the rear end of the right side wall of the base.

Preferably, the optical fiber is located on the central axis of the receiving cavity, and one side of the receiving cavity close to the optical fiber is cylindrical.

The utility model discloses one of following beneficial effect has at least:

in the utility model, the distance from the optical fiber clamping component to the light beam receiving device can be adjusted by the push-pull component, so that the position of the optical fiber output end is changed, the optical fiber clamping component is not required to be disassembled and assembled, the loss of the optical fiber is avoided, and the safety is higher; the laser beam penetrates into the receiving cavity through the receiving hole, the shape of the receiving cavity enables the light beam to be reflected for multiple times in the cavity, the cavity has high absorptivity to the reflected light beam every time, the effect of the cavity of the spherical structure on light energy conversion is close to 100%, and the damage which can not be sensed by an operator is effectively reduced.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a light beam receiving device according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a fiber clamping assembly according to a preferred embodiment of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Description of reference numerals:

the device comprises an optical fiber 1, a light beam receiving device 10, a receiving hole 11, a receiving cavity 12, a fiber clamping component 20, a base 21, a pressing plate 22, a rubber rod 221, a positioning column 23, a guide block 24, a clamping groove 241, a push-pull component 30, a positioning column 31, a vertical plate 311, a push rod 32, a connecting rod 33, a connecting column 34, a guide cylinder 35 and a bottom plate 40.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise" and the like refer to the orientation or positional relationship as shown in the drawings, which is only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a laser pump source module aging apparatus includes an optical fiber 1 and a light beam receiving device 10, one end of the optical fiber 1 is connected to a laser, the other end of the optical fiber is embedded into a receiving hole 11 of the light beam receiving device 10, a receiving cavity 12 communicated with the receiving hole 11 is provided in the light beam receiving device 10, one side of the receiving cavity 12 away from the optical fiber 1 is hemispherical, a side end of the light beam receiving device 10 is provided with an optical fiber clamping assembly 20 and a push-pull assembly 30, the optical fiber clamping assembly 20 clamps the optical fiber 1, and the push-pull assembly 30 is connected to the optical fiber clamping assembly 20 and can adjust a distance from the optical fiber clamping assembly 20 to the light beam receiving device 10. In the utility model, the distance from the optical fiber clamping component 20 to the light beam receiving device 10 can be adjusted by the push-pull component 30, so that the position of the output end of the optical fiber 1 is changed, the optical fiber clamping component 20 does not need to be disassembled and assembled, the loss of the optical fiber 1 is avoided, and the safety is higher; laser beams are emitted into the receiving cavity 12 through the receiving hole 11, the shape of the receiving cavity 12 enables the light beams to be reflected for multiple times in the cavity, the cavity has high absorptivity for reflected light beams every time, the effect of the cavity with a spherical structure on light energy conversion is close to 100%, and the damage which cannot be sensed by an operator is effectively reduced.

As a preferred embodiment of the present invention, it may also have the following additional technical features:

the optical fiber clamping assembly 20 and the push-pull assembly 30 are both arranged on the bottom plate 40, the push-pull assembly 30 is fixedly connected with the bottom plate 40, the optical fiber clamping assembly 20 is in sliding connection with the bottom plate 40, and the initial distance from the optical fiber clamping assembly 20 to the light beam receiving device 10 can be adjusted by adjusting the bottom plate 40; in this embodiment, the lower end of the light beam receiving device 10 is also provided with a bottom plate 40.

The optical fiber clamping assembly 20 comprises a base 21 and a pressing plate 22, the pressing plate 22 is hinged with the upper end face of the base 21, the lower end face of the base 21 is connected with a bottom plate 40 in a sliding mode, a rubber rod 221 coaxial with the optical fiber 1 is embedded in the lower end face of the pressing plate 22, the rubber rod 221 is matched with the upper end face of the base 21 to clamp the optical fiber 1, the push-pull assembly 30 drives the base 21 to move left and right, the position of the optical fiber 1 in the left and right direction can be changed, the pressing plate 22 is matched with the rubber rod 221 to press the optical fiber 1, and the rubber rod 221 can prevent the optical fiber 1 from being damaged by pressing; in this embodiment, the base 21 is a rectangular parallelepiped structure, and has a small rectangular parallelepiped at its upper end, the rear end of the pressing plate 22 is hinged to the small rectangular parallelepiped, and the center of the optical fiber 1 on the base 21 and the center of the receiving hole 11 are located on the same axis.

One end of the pressing plate 22, which is not hinged to the base 21, is provided with a positioning column 23, the pressing plate 22 is penetrated through by the positioning column 23, the lower end of the positioning column 23 is connected with the upper end face of the base 21 in a magnetic absorption manner, and the stability of the pressing plate 22 for fixing the optical fiber 1 can be further improved through the positioning column 23; in this embodiment, two positioning posts 23 are provided, and penetrate through the front end of the pressing plate 22 from top to bottom.

The upper end face of the base 21 is provided with a plurality of guide blocks 24 which are coaxially distributed with the optical fiber 1, the guide blocks 24 are provided with a clamping groove 241 with openings at the left, right and upper three ends, the bottom surface of the clamping groove 241 is the upper end face of the base 21, and the optical fiber 1 is embedded in the clamping groove 241 and plays a role in guiding the optical fiber 1; in this embodiment, the guide block 24 has three blocks, two blocks are provided on the right side and one block is provided on the left side of the pressing plate 22, and the section of the locking groove 241 is in an inverted isosceles trapezoid shape so as to be adapted to optical fibers 1 of various sizes.

The push-pull assembly 30 is arranged on the right side of the optical fiber clamping assembly 20 and comprises a positioning seat 31, a push rod 32, a connecting rod 33 and a connecting column 34, two vertical plates 311 which are perpendicular to each other are arranged at the left end and the right end of the positioning seat 31, the lower end of the push rod 32 is hinged with the vertical plate 311 on the right side, one end of the connecting column 34 is fixedly connected with the base 21, the other end of the connecting column 34 penetrates through the vertical plate 311 on the left side, one end of the connecting rod 33 is hinged with the middle of the push rod 32, the other end of the connecting column 34 is hinged with the push rod 32, the push rod 32 is pulled towards the right, the connecting column 34 is driven by the connecting rod 33 to move towards the right, so that the base 21 is driven to move towards the right, and the push rod 32 is pushed towards the left, so that the base 21 can move towards the left; during specific implementation, a sliding groove matched with the base 21 can be further arranged on the bottom plate 40, so that the sliding stability of the bottom plate is improved.

A guide cylinder 35 is further arranged on the left side of the positioning seat 31, the guide cylinder 35 is connected with the side wall of the left vertical plate 311, the connecting column 34 penetrates through the guide cylinder 35 and is matched with the guide cylinder 35, and the guide cylinder 35 can ensure that the connecting column 34 moves left and right stably; in this embodiment, the vertical plate 311, the guide cylinder 35 and the positioning seat 31 are integrated.

Push-and-pull subassembly 30 is located the rear side of optic fibre 1, and spliced pole 34 is connected with the rear end of base 21 right side wall, and during the staff operation, can not touch optic fibre 1, only need the operation push rod 32 can, the security is high.

The optical fiber 1 is positioned on the central axis of the receiving cavity 12, one side of the receiving cavity 12 close to the optical fiber 1 is cylindrical, the structure of the receiving cavity 12 enables light beams to be reflected for multiple times in the receiving cavity 12, the absorption efficiency of the receiving cavity 12 on the light beams is improved, and the optical fiber 1 has a certain distance from the hemispherical structure after extending into the receiving cavity 12; in this embodiment, the inner wall of the receiving cavity 12 may further be loaded with an integrating sphere probe, a photodetector, and other elements for monitoring the output condition of the laser pumping source module; in this embodiment, the light beam receiving device 10 is a rectangular parallelepiped, the receiving cavity 12 is disposed inside the light beam receiving device 10, and the light beam receiving device 10 is made of a metal material with good thermal conductivity and is connected to a cooling system, so that heat absorbed by the light beam receiving device 10 is conducted away; the inner wall of the receiving cavity 12 is not coated with black high-temperature resistant material, and the inner wall is silver, so that light beams emitted by the laser can be effectively absorbed.

The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.

The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.

Claims

1. The aging device for the laser pumping source module is characterized by comprising an optical fiber (1) and a light beam receiving device (10), wherein one end of the optical fiber (1) is connected with a laser, the other end of the optical fiber is embedded into a receiving hole (11) of the light beam receiving device (10), a receiving cavity (12) communicated with the receiving hole (11) is arranged in the light beam receiving device (10), one side, far away from the optical fiber (1), of the receiving cavity (12) is hemispherical, an optical fiber clamping component (20) and a push-pull component (30) are arranged at the side end of the light beam receiving device (10), the optical fiber (1) is clamped by the optical fiber clamping component (20), and the push-pull component (30) is connected with the optical fiber clamping component (20) and can adjust the distance from the optical fiber clamping component (20) to the light beam receiving device (10).

2. The laser pumping source module aging apparatus according to claim 1, wherein the fiber clamping assembly (20) and the push-pull assembly (30) are both disposed on the bottom plate (40), the push-pull assembly (30) is fixedly connected to the bottom plate (40), and the fiber clamping assembly (20) is slidably connected to the bottom plate (40).

3. The laser pumping source module aging device according to claim 2, wherein the optical fiber clamping assembly (20) comprises a base (21) and a pressing plate (22), the pressing plate (22) is hinged to an upper end face of the base (21), a lower end face of the base (21) is slidably connected with the bottom plate (40), a rubber rod (221) coaxial with the optical fiber (1) is embedded in a lower end face of the pressing plate (22), and the rubber rod (221) is matched with the upper end face of the base (21) to clamp the optical fiber (1).

4. The laser pumping source module aging apparatus according to claim 3, wherein a positioning column (23) is disposed at an end of the pressing plate (22) not hinged to the base (21), the positioning column (23) penetrates the pressing plate (22), and a lower end of the positioning column is magnetically connected to an upper end surface of the base (21).

5. The laser pumping source module aging apparatus according to claim 3, wherein the upper end surface of the base (21) is provided with a plurality of guide blocks (24) coaxially distributed with the optical fiber (1), the guide blocks (24) are provided with a locking groove (241) with openings at the left, right and upper three ends, and the bottom surface of the locking groove (241) is the upper end surface of the base (21).

6. The laser pumping source module aging device according to claim 3, wherein the push-pull assembly (30) is disposed on the right side of the fiber clamping assembly (20), and includes a positioning seat (31), a push rod (32), a connecting rod (33), and a connecting rod (34), two vertical plates (311) perpendicular to each other are disposed at the left and right ends of the positioning seat (31), the lower end of the push rod (32) is hinged to the vertical plate (311) on the right side, one end of the connecting rod (34) is fixedly connected to the base (21), the other end of the connecting rod penetrates through the vertical plate (311) on the left side, one end of the connecting rod (33) is hinged to the middle of the push rod (32), and the other end of the connecting rod (34) is hinged to the connecting rod.

7. The laser pumping source module aging apparatus according to claim 6, wherein a guide cylinder (35) is further disposed on a left side of the positioning seat (31), the guide cylinder (35) is connected to a sidewall of the left vertical plate (311), and the connection column (34) penetrates through the guide cylinder (35) and is adapted thereto.

8. The laser pumping source module aging apparatus of claim 6, wherein the push-pull assembly (30) is located at the rear side of the optical fiber (1), and the connection column (34) is connected with the rear end of the right side wall of the base (21).

9. A laser pump source module aging device according to claim 1, characterized in that the optical fiber (1) is located on the central axis of the receiving cavity (12), and the side of the receiving cavity (12) close to the optical fiber (1) is cylindrical.