A laser pumped automated test apparatus and method

Abstract

The application provides a kind of laser pumping automatic testing device and method, including three kinds of measuring functions of divergence angle, wavelength and power, wherein divergence angle value measurement adopts measurement head to rotate swing in light beam path and records and calculates light intensity distribution point by point, finally calculates NA value;Wavelength is measured by integrating the spectrometer probe inside the integrating sphere;Power is indirectly measured by integrating photodiode inside the integrating sphere.The laser pumping automatic testing device is composed of stock bin, first storage station, second storage station, laser beam divergence angle measuring mechanism, water wiping mechanism, wavelength and power testing mechanism, and discharge bin.The laser pump is fixed inside the customized fixture, and the double-head manipulator completes the automatic production conversion of pump source between each station by carrying the fixture.The laser pumping automatic testing device provided by the application can realize the automatic testing of three kinds of measuring functions of laser divergence angle, wavelength and power, and has high testing precision.

Description

Technical Field

[0001] This application relates to the field of laser technology, specifically to an automatic testing device and method for laser pumping. Background Technology

[0002] As a core component of fiber lasers, the performance parameters of semiconductor laser pump sources directly determine their reliability in industrial processing applications. During factory testing, characteristics such as divergence angle (NA), wavelength accuracy, and output power stability constitute core quality indicators: exceeding the NA value will cause beam coupling failure, wavelength deviation will lead to a significant decrease in the absorption efficiency of the gain fiber, and power fluctuations directly affect the laser's output lifetime. Traditional testing processes rely on manual measurement on separate equipment, resulting in efficiency bottlenecks and accumulated human errors, making it difficult to meet the mass production requirements of modern semiconductor lasers. Especially in high-power pump source scenarios, wavelength drift caused by thermal effects (typically 0.3 nm / ℃) and beam distortion further increase the complexity of testing.

[0003] In current mainstream production testing solutions, the NA value is generally measured on a single device using a movable aperture and a power meter, the wavelength is measured manually using a grating spectrometer on a single device, and the power is measured directly on a separate device using a power meter. However, this measurement method has the following problems: the measurement data is not accurate enough and the stability is poor; the degree of automation and measurement efficiency are low; the cost of wear and tear during measurement is high, and the power meter needs to be replaced and maintained regularly; and the thermal management effect is insufficient. Summary of the Invention

[0004] The purpose of this application is to provide an automatic testing device and method for laser pumping, which aims to solve the problems of low automation and low measurement accuracy in existing laser pumping measurements.

[0005] In a first aspect, this application discloses an automatic laser pump testing device, the device comprising: a worktable, a laser pump testing device, and a laser pump displacement device, both of which are fixed on the worktable; the laser pump testing device is used to test a laser pump, and the laser pump displacement device is used to move the laser pump under test within the laser pump testing device to perform different types of tests on the laser pump under test; The laser pump testing device comprises, in sequence, a loading bin, a first storage station, a second storage station, a laser beam divergence angle measuring mechanism, a water wiping mechanism, a wavelength power testing mechanism, and a unloading bin. The loading bin holds the laser pump to be tested. The first storage station is used to hold the laser pump to be tested with abnormal wavelength power. The second storage station is used to hold the laser pump to be tested with abnormal divergence angle. The water wiping mechanism is used to wipe the laser pump to be tested with water. The wavelength power testing mechanism is used to detect the wavelength power of the laser pump to be tested. The unloading bin is used to hold the laser pump to be tested without abnormalities. The laser pump displacement device includes a dual-head three-axis manipulator mechanism, which includes a manipulator slide, a left manipulator and a right manipulator slidably disposed on the manipulator slide. The manipulator slide extends along the direction from the upper hopper to the lower hopper, and the left manipulator and the right manipulator are disposed opposite to each other. When the divergence angle of the laser pump under test meets the preset divergence angle, the right robotic arm is used to transport the laser pump under test to the wavelength power testing mechanism. When the divergence angle of the laser pump under test does not meet the preset divergence angle requirement, the right robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then move the wiped laser pump under test to the second storage station for storage. When the wavelength power of the laser pump under test meets the preset wavelength power requirement, the left robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then transport the wiped laser pump under test to the unloading hopper for storage. When the wavelength power of the laser pump under test does not meet the preset wavelength power requirement, the left robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then transport the wiped laser pump under test to the first storage station for storage.

[0006] In some possible embodiments, the robotic arm slide includes an X-axis beam extending along the direction from the upper hopper to the lower hopper, an X-axis guide rail formed above the X-axis beam, and the left robotic arm / right robotic arm spans the X-axis beam and is slidably mounted on the X-axis beam, and the left robotic arm / right robotic arm can slide left and right along the X-axis guide rail; The left / right robotic arm includes a Y-axis guide rail that is perpendicular to the X-axis guide rail and parallel to the horizontal plane. The Y-axis guide rail is connected to the X-axis crossbeam via a Y-axis longitudinal beam. The left / right robotic arm can move back and forth along the Y-axis guide rail. The left / right robotic arm also includes a Z-axis guide rail that is perpendicular to the Y-axis guide rail and perpendicular to the horizontal plane. The Z-axis guide rail is connected to the X-axis crossbeam via an X-axis longitudinal beam. The left / right robotic arm can move up and down along the Z-axis guide rail. The left / right robotic arm also includes a gripper, which is fixed to the bottom of the Z-axis guide rail and can move along the XYZ direction.

[0007] In some possible embodiments, the laser beam divergence angle measuring mechanism includes a measuring device body, a second water cooling mechanism, and a second power supply mechanism, all of which are fixed on the worktable; The main body of the measuring device is used to measure the divergence angle of the laser pump under test; The second water-cooling mechanism is disposed on the side of the measuring device body away from the laser pump displacement device. The laser pump to be tested is placed above the second water-cooling mechanism, and the light-emitting side of the laser pump to be tested faces the measuring device body. The second water-cooling mechanism is used to inject water into the bottom of the laser pump to be tested to reduce the thermal resistance between the second water-cooling mechanism and the laser pump to be tested. The second power-on mechanism is used to power the laser pump under test so that the laser pump under test emits laser light for divergence angle testing.

[0008] In some possible embodiments, the second water-cooling mechanism includes: a water-cooling mechanism body; a water-cooling plate, which is fixed above the water-cooling mechanism body by a clamping cylinder; a pressure claw, which is fixed above the water-cooling mechanism body and disposed on the side of the water-cooling plate, and is used to press the laser pump onto the water-cooling plate; and a clamping cylinder, which is used to provide pressure to the pressure claw.

[0009] In some possible embodiments, the water-cooled plate includes: an upper cover and a lower cover of the water-cooled plate disposed opposite to each other; and heat dissipation fins disposed on the side of the upper cover of the water-cooled plate facing the lower cover of the water-cooled plate, the heat dissipation fins being used to dissipate heat from the laser pump. An internal water channel is provided between the upper cover of the water-cooled plate and the lower cover of the water-cooled plate. The internal water channel includes an internal water passage, an internal water inlet, and an internal water outlet. The internal water inlet is used to inject water into the internal water passage, and the internal water outlet is used to discharge water from the internal water passage. The water spray hole and water spray pipe are provided. The water spray hole is disposed on the cover of the water-cooled plate, and the water spray pipe is disposed through the water-cooled plate. One end of the water spray pipe is connected to the water spray hole. The water spray pipe is used to inject water into the cover of the water-cooled plate through the water spray hole. The surface overflow micro-groove is disposed on the cover of the water-cooled plate. The water sprayed from the water spray hole is stored in the surface overflow micro-groove.

[0010] In some possible embodiments, the second energizing mechanism includes: an energizing probe, the second energizing mechanism being electrically connected to the main body of the measuring device via the energizing probe; a cylinder, the cylinder being used to control the movement of the energizing probe to adjust the position of the energizing probe; and a micro switch, the micro switch being used to control the on / off state of the energizing probe.

[0011] In some possible embodiments, the wavelength power testing mechanism includes a first water cooling mechanism, a first power-on mechanism, a fiber-gluing mechanism, and an integrating sphere, wherein the first water cooling mechanism, the first power-on mechanism, the fiber-gluing mechanism, and the integrating sphere are all fixed on the worktable; The laser pump is placed above the first water-cooling mechanism, which is used to cool the laser pump with water; the first power supply mechanism is fixed on the first water-cooling mechanism, which is used to supply power to the laser pump. The fiber-pulling mechanism is disposed between the first water-cooling mechanism and the integrating sphere. The fiber-pulling mechanism is used to pull the fiber head out of the laser pump and send the fiber head into the integrating sphere. The integrating sphere is used to test the wavelength and power of the laser pump.

[0012] In some possible embodiments, the fiber picking mechanism includes a fiber picking cylinder and a lever, wherein the fiber picking cylinder is used to drive the lever to move, and the lever is used to clamp the fiber head in the laser pump and send the fiber head into the integrating sphere.

[0013] In some possible embodiments, the integrating sphere is a hollow sphere, the integrating sphere includes an entrance aperture to allow the laser emitted by the laser pump to enter the interior of the integrating sphere, the integrating sphere also includes two exit apertures, a photodiode and a spectrometer arranged opposite each other, the photodiode and the spectrometer are respectively arranged corresponding to one of the exit apertures, the photodiode is used to test the power of the laser pump, and the spectrometer is used to test the wavelength of the laser pump.

[0014] Secondly, this application provides an automatic laser pumping testing method, applied to the automatic laser pumping testing apparatus as described in any of the preceding claims, the method comprising: The laser pump to be tested is loaded into the loading bin; the right robotic arm is controlled to move the laser pump to be tested to the laser beam divergence angle measuring mechanism to measure the divergence angle; If the divergence angle of the laser pump under test meets the preset divergence angle, the right robotic arm is controlled to move the laser pump under test to the wavelength power testing mechanism for testing; if the divergence angle of the laser pump under test does not meet the preset divergence angle requirement, the right robotic arm is controlled to move the laser pump under test to the wiping mechanism for wiping, and the wiped laser pump under test is moved to the second storage station for storage. If the wavelength power of the laser pump under test meets the preset wavelength power requirement, the left robotic arm is controlled to move the laser pump under test to the wiping mechanism for wiping, and the wiped laser pump under test is moved to the unloading bin for storage. If the wavelength power of the laser pump under test does not meet the preset wavelength power requirement, the left robotic arm is controlled to move the laser pump under test to the wiping mechanism for wiping, and the wiped laser pump under test is then moved to the first storage station for storage.

[0015] This application provides an automatic laser pump testing device, including three measurement functions: divergence angle, wavelength, and power. The divergence angle is measured by rotating and oscillating a measuring head within the beam path, recording and calculating the light intensity distribution point by point, and finally calculating the NA value. The wavelength is measured using a spectrometer probe integrated into the integrating sphere. The power is measured indirectly using a photodiode integrated into the integrating sphere. The complete automatic laser pump testing device consists of a hopper, a first storage station, a second storage station, a laser beam divergence angle measuring mechanism, a water wiping mechanism, a wavelength and power testing mechanism, and a unloading hopper. The laser pump is placed and fixed inside a customized fixture, and a dual-headed robotic arm automatically transfers the pump source between the various stations by moving the fixture. The automatic laser pump testing device provided in this application can achieve automated testing of laser divergence angle, wavelength, and power with high testing accuracy. Attached Figure Description

[0016] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0017] Figure 1 A schematic diagram of the overall structure of the laser-pumped automatic testing device provided in this application; Figure 2 A schematic diagram of the internal structure of the laser-pumped automatic testing device provided in this application; Figure 3 This is a schematic diagram of the internal structure layout of the fixture provided in the embodiments of this application; Figure 4 This is a schematic diagram of the internal structure layout of another fixture provided in an embodiment of this application; Figure 5This is a schematic diagram of a hydraulic trolley loading materials according to an embodiment of this application; Figure 6 This is a schematic diagram of the hydraulic trolley structure provided in an embodiment of this application; Figure 7 This is a schematic diagram of the loading and unloading hopper bracket structure provided in this application; Figure 8 This application provides an embodiment of the empty state diagram of the loading and unloading hoppers. Figure 9 A schematic diagram of the structure of the laser pump displacement device provided in the embodiments of this application; Figure 10 This is a schematic diagram of the main body of the measuring device provided in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of the second water-cooling mechanism provided in the embodiments of this application; Figure 12 This is a schematic diagram of the internal structure of the second water-cooling mechanism provided in an embodiment of this application; Figure 13 A schematic diagram of the upper surface structure of the water-cooled plate provided in the embodiments of this application; Figure 14 This is a schematic diagram of the internal structure of the water-cooled plate provided in an embodiment of this application; Figure 15 This is a schematic diagram of another internal structure of a water-cooled plate provided in an embodiment of this application; Figure 16 This is a schematic diagram of the internal structure of another water-cooled plate provided in an embodiment of this application; Figure 17 A schematic diagram of the second power-on mechanism provided in this application; Figure 18 This is a schematic diagram of the fiber optic power-off assembly provided in this application; Figure 19 A schematic diagram of the internal structure of the fiber optic power-off component provided in this application; Figure 20 A diagram showing the vertical state of the main swing arm axis of the measuring device provided in this application; Figure 21 A horizontal state diagram of the main swing arm axis of the measuring device provided in this application; Figure 22 A schematic diagram of the structure of the first displacement module provided in this application; Figure 23 Another structural schematic diagram of the swing arm provided in this application; Figure 24 A schematic diagram of an embodiment of the measurement module provided in this application; Figure 25 This is a schematic flowchart of an embodiment of the laser beam divergence angle measurement method provided in this application; Figure 26 A schematic flowchart illustrating an embodiment of adjusting the position of the optical fiber head provided in this application; Figure 27 A schematic diagram of the field of view of the positioning camera provided in this application; Figure 28 This application provides a coordinate diagram showing the relationship between angle and light intensity during the measurement of the light spot center in an embodiment of the present application. Figure 29 A schematic diagram of the maximum light intensity fitted rectangular coordinates for embodiments of this application. Figure 1 ; Figure 30 A schematic diagram of the maximum light intensity fitted rectangular coordinates for embodiments of this application. Figure 2 ; Figure 31 This is a schematic diagram showing the angle between the swing arm and the center of the light spot, provided in an embodiment of this application. Figure 32 This is a schematic diagram of a single measurement of the swing arm shaft provided in an embodiment of this application; Figure 33 This is a schematic diagram of the rotation of the first displacement module when measuring the divergence angle value, provided in an embodiment of this application. Figure 34 This is a schematic diagram of the measured light intensity distribution spherical cap surface provided in an embodiment of this application; Figure 35 A schematic diagram showing the relationship between the number of scanning points and the spot ring when the number of measurement points in a single measurement is odd, provided for an embodiment of this application. Figure 36 A schematic diagram showing the relationship between the number of scanning points and the spot ring when the number of measurement points in a single measurement is even, provided for an embodiment of this application. Figure 37 A schematic diagram illustrating the calculation of the divergence angle provided in an embodiment of this application; Figure 38 This is a schematic diagram of the water-wiping mechanism provided in the embodiments of this application; Figure 39 A schematic diagram of the storage station provided in this application; Figure 40 This is a schematic diagram of the wavelength power testing mechanism provided in this application; Figure 41 This is a schematic diagram of the fiber-picking mechanism provided in an embodiment of this application; Figure 42 This is a schematic diagram of the integrating sphere provided in an embodiment of this application; Figure 43 This is a schematic diagram of the overall water circuit provided in the embodiments of this application; Figure 44 This is a flowchart illustrating the automatic laser pumping testing method provided in an embodiment of this application. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0019] In the following description of this application, "some embodiments" are referred to, which describe a subset of all possible embodiments. However, it is understood that "some embodiments" may be the same subset or different subset of all possible embodiments, and may be combined with each other without conflict.

[0020] In the following description of this application, the terms "first, second, third" are used merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first, second, third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0022] The following detailed description, in conjunction with specific embodiments, should be noted. It should be understood that the sequence numbers of the embodiments are not intended to limit the preferred order of the embodiments. This application provides an automatic laser pump testing device, which can automatically test data such as the divergence angle and wavelength power of laser pumps. The bridge-building machine provided in this application will be described in detail below with reference to the accompanying drawings.

[0023] Please refer to Figure 1 This is a layout view of the laser-pumped automatic testing device provided in this application. Figure 1The automatic laser pump testing device is a rectangular structure enclosed by a protective plate. The outer protective plate has opposing loading and unloading positions. The laser pump to be tested enters the automatic testing device from the loading position, undergoes testing, and then exits from the unloading position. A loading-side safety light curtain is installed at the loading position, and a unloading-side safety light curtain is installed at the unloading position. These two safety light curtains allow observation of the loading and unloading processes, preventing abnormalities. A three-color light is installed on the top of the automatic laser pump testing device. This light can switch colors to indicate the current operating status of the automatic laser pump testing device to the operator. For example, red indicates normal operation, green indicates idle operation, and blue indicates abnormal maintenance. The operating status of the automatic laser pump testing device can be determined by observing the color of the three-color light. Figure 1 The protective panel of the laser-pumped automatic testing device also features a keyboard, mouse, and control button area. Operators can control the device's operation using these tools, such as pressing a button to initiate the automatic testing process. It's important to note that the laser-pumped automatic testing device generates laser light during testing; therefore, the protective panel also includes laser-protective glass. This allows operators to observe the device's internal workings while protecting them from laser interference.

[0024] like Figure 2 The diagram shown is a schematic representation of the internal structure of the laser-pumped automatic testing device provided in an embodiment of this application. Figure 2 The automatic laser pump testing device mainly consists of two parts: a laser pump testing unit and a laser pump positioning unit. The laser pump testing unit is primarily used to test the laser pump, including but not limited to detecting the divergence angle and wavelength power of the laser pump. The laser pump positioning unit can move the laser pump under test within the laser pump testing unit to perform different types of tests. Figure 2In the illustrated embodiment, the laser pump testing device includes a loading bin, a first storage station, a second storage station, a measuring device body, a water-wiping mechanism, a wavelength power testing mechanism, and a unloading bin arranged sequentially. The loading bin holds the laser pump to be tested, the first storage station holds laser pumps with abnormal wavelength power, and the second storage station holds laser pumps with abnormal divergence angles. Since water is needed to cool the laser pump during divergence angle testing, a water-wiping mechanism is also required to wipe the tested laser pump. The wavelength power testing mechanism is used to detect the wavelength power of the laser pump under test, and the unloading bin holds laser pumps without abnormalities. The laser pump displacement device includes a dual-head three-axis robotic arm mechanism, which mainly includes a robotic arm slide and a left and right robotic arm slidably mounted on the slide. The robotic arm slide extends from the loading bin to the unloading bin, and the left and right robotic arms are positioned opposite each other. Both the left and right robotic arms can slide along robotic arm tracks to move the fixture carrying the laser pump under test, thereby moving the laser pump under test to different workstations for different tests. Specifically, when the divergence angle of the laser pump under test meets the preset divergence angle, the right robotic arm is used to transport the laser pump under test to the wavelength power testing mechanism. When the divergence angle of the laser pump under test does not meet the preset divergence angle, the right robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then moves the wiped laser pump under test to the second storage station for storage. When the wavelength power of the laser pump under test meets the preset wavelength power requirement, the left robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then moves the wiped laser pump under test to the unloading hopper for storage. When the wavelength power of the laser pump under test does not meet the preset wavelength power requirement, the left robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then moves the wiped laser pump under test to the first storage station for storage. The specific structures of the laser-pumped testing device and the laser-pumped displacement device provided in this application are described in detail below with reference to the accompanying drawings: like Figure 3 The diagram shown is an internal structural layout of the fixture provided in an embodiment of this application. The fixture provided in this application is mainly used to support the laser pump under test; subsequently, the fixture carrying the laser pump under test is moved, rather than the laser pump under test being moved directly. Figure 3 In this design, the laser pump under test includes a pump source 1, an optical fiber, an optical fiber head, an optical fiber clamp, a support column, and a guide rail. These structures are primarily used to control the laser emitted from the pump source for subsequent testing. One pin of the pump source 1 is electrically connected to a negative electrode plate via a negative wire, and the other pin is electrically connected to a positive electrode plate via a positive wire. For example... Figure 4 The diagram shown is an internal structural layout of another fixture provided for implementation of this application, and is consistent with... Figure 3Similarly, Figure 4 The laser pump shown also includes structures such as pump source 2, optical fiber, fiber optic head, fiber optic clamp, support column, and guide rail. And compared to... Figure 3 The difference is, Figure 4 One pin of pump source 2 is electrically connected to the negative electrode via a negative wire, and the other pin of pump source 1 is electrically connected to the positive electrode via a positive wire; and the other two pins of pump source 2 are electrically connected to each other via a jumper wire.

[0025] like Figure 5 The diagram shown is a schematic of a hydraulic trolley loading materials according to an embodiment of this application. Figure 6 The diagram shown is a schematic representation of the hydraulic trolley structure provided in an embodiment of this application. For Figure 3 Figure 4 For the fixture shown, which is equipped with a laser pump for testing, it is necessary to utilize, as Figure 5 Figure 6 The hydraulic trolley shown is used for loading materials for subsequent testing processes. Specifically, the hydraulic trolley has an overall L-shaped structure and includes multiple functional modules such as hydraulic jacks, guide shaft assemblies, lifting brackets, and linkage mechanisms. The guide shaft assembly is slidably connected to the longitudinal portion of the L-shaped structure of the hydraulic trolley, the lifting bracket is slidably connected to the guide shaft assembly via a linkage structure, and the hydraulic jack is fixed above the transverse portion of the L-shaped structure of the hydraulic trolley to support the lifting bracket. Figure 7 The diagram shown is a schematic of the upper and lower hopper support structure provided in this application. The lifting support includes a movable support plate and multiple guide shafts perpendicularly arranged to the movable support plate. The multiple guide shafts are respectively fixedly connected to the movable support plate perpendicularly via linear bearings, and are used to limit the movement of multiple laser pumps to be tested. Figure 8 The diagram shown illustrates the empty state of the upper and lower hoppers according to an embodiment of this application. Taking the upper hopper as an example, it is mainly used to store and place laser pumps to be tested, stacking multiple laser pumps to be tested in the hopper. Figure 7 In the upper and lower hopper brackets shown, and using Figure 5 Figure 6 The hydraulic trolley shown loads material onto the hopper bracket via a laser pump. Figure 8 The laser pumps are placed in the loading hopper shown for subsequent testing procedures. Specifically, when multiple laser pumps to be tested are stacked and placed... Figure 7 After placing the feeding hopper bracket as shown, position the feeding hopper bracket above the lifting bracket and control the hydraulic trolley to move to... Figure 8 Near the feeding hopper shown, the hydraulic jacks of the hydraulic trolley are used to lift the lifting bracket, thereby driving... Figure 7 The feeding hopper bracket shown moves upward. When the feeding hopper reaches the set height, the control linkage slides to move the lifting bracket toward the feeding hopper, thereby... Figure 7The shown feeding hopper bracket moves and is placed Figure 8 The material is in the feeding hopper shown. Figure 8 The shown feeding hopper includes a hopper module perpendicular to the horizontal plane, a support plate parallel to the horizontal plane, and a lifting support plate positioned above the support plate; when Figure 7 The shown feeding hopper bracket moves and is placed Figure 8 When above the feeding hopper shown, Figure 7 The bottom of the movable support plate in the feeding hopper bracket has a protrusion that is embedded in... Figure 8 The top of the lifting support plate has a groove to fix the feeding hopper bracket to the lifting support plate. Simultaneously, the bottom plate of the movable support plate has a positioning pin, and the top of the lifting support plate has a pin sleeve. When the feeding hopper bracket is fixed to the lifting support plate, the positioning pin of the feeding hopper bracket needs to be inserted into the pin sleeve of the lifting support plate. Furthermore, the movable support plate is also equipped with a latch 1, and the support plate of the feeding hopper is equipped with a latch 2. When the feeding hopper bracket is fixed to the feeding hopper, latches 1 and 2 can be connected and locked to ensure the stability of the fixed connection between the feeding hopper and the feeding hopper bracket.

[0026] Please refer to Figure 9 This is a schematic diagram of an embodiment of the laser-pumped displacement device provided in this application. Figure 9 In this laser pump displacement device, there is a dual-head three-axis manipulator mechanism. The dual-head refers to the two three-axis manipulators arranged opposite each other, which can be used to pick up and move the position of the fixture. The three-axis means that the manipulators can move along three different directions: X, Y, and Z. Specifically, the robotic arm slide includes an X-axis beam extending from the upper hopper to the lower hopper, with an X-axis guide rail formed above the beam. The left / right robotic arm spans the X-axis beam and slides on it, allowing it to slide left and right along the X-axis guide rail. The left / right robotic arm also includes a Y-axis guide rail perpendicular to the X-axis guide rail and parallel to the horizontal plane, connected to the X-axis beam via a Y-axis longitudinal beam, allowing it to move back and forth along the Y-axis guide rail. Furthermore, the left / right robotic arm includes a Z-axis guide rail perpendicular to the Y-axis guide rail and perpendicular to the horizontal plane, connected to the X-axis beam via the X-axis longitudinal beam, allowing it to move up and down along the Z-axis guide rail. Finally, the left / right robotic arm also includes grippers fixed to the bottom of the Z-axis guide rail, which can move along the XYZ directions.

[0027] by Figure 9Taking the left robotic arm located on the left as an example, the left robotic arm includes X1, Y1, and Z1 axes. The X1 and Y1 axes are perpendicular to and parallel to the X-axis guide rail, and both can slide left and right along the extension direction of the X-axis guide rail. It also includes a Y1 axis guide rail, which is parallel to the horizontal plane and perpendicular to the Y1 axis. A Y1 axis rack is formed on the Y1 axis guide rail to control the forward and backward sliding of the Y-axis. It also includes a Z1 axis guide rail, which is parallel to the Y1 axis guide rail and has a Z1 axis rack. The Z1 axis guide rail can slide up and down along the extension direction of the Z1 axis rack. By setting the X1, Y1, and Z1 axes, the left gripper can be controlled to move in three different directions: X, Y, and Z. Similarly, the structure of the right robotic arm is similar to that of the left robotic arm, and the two are positioned opposite each other.

[0028] Please refer to Figure 10 This is a schematic diagram of an embodiment of the measuring device body provided in this application. The measuring device body mainly includes a measuring device body, a second water-cooling mechanism, and a second power-on mechanism, all of which are fixed on a worktable. Specifically, the measuring device body is the main power supply module for measuring the divergence angle of the laser pump under test. The second water-cooling mechanism is located on the side of the measuring device body away from the laser pump displacement device. After the laser pump under test is loaded, it is moved by a robotic arm and placed above the second water-cooling mechanism, with the light-emitting side of the laser pump under test facing the measuring device body. When measuring the divergence angle of the laser pump, the second power-on mechanism is used to power the laser pump under test so that it emits laser light to the measuring device body for divergence angle measurement. Since heat is generated during the laser emission process, the second water-cooling mechanism is provided to cool the laser pump.

[0029] like Figure 11 The diagram shown is a structural schematic of one embodiment of the second water-cooling mechanism provided in this application. Figure 12 This is a schematic diagram of the internal structure of the second water-cooling mechanism provided in an embodiment of this application. Figure 13 This is a schematic diagram of the upper surface structure of the water-cooled plate provided in an embodiment of this application. Figure 14 This is a schematic diagram of the internal structure of the water-cooled plate provided in an embodiment of this application. Figure 15 This is a schematic diagram of the internal structure of another water-cooled plate provided in an embodiment of this application. Figure 16 This is a schematic diagram of the internal structure of another water-cooled plate provided in an embodiment of this application; the following is in conjunction with... Figures 11 to 16 This application provides a detailed description of the second water-cooling mechanism. Please refer to [link / reference needed]. Figure 11The second water-cooling mechanism mainly comprises several modules, including the main body, water-cooling plate, pressure claws, and cylinders. The main body provides a platform for mounting and securing the water-cooling plate, pressure claws, and cylinders. The water-cooling plate is the primary functional module for cooling; the laser pump to be measured needs to be placed on the water-cooling plate when measuring its divergence angle. The pressure claws are mainly used to clamp the laser pump, preventing displacement during testing that could affect the results, while the cylinders provide pressure. Figure 11 In this system, the cylinders include clamping cylinders and pressing cylinders. The clamping cylinders are mainly used to fix the water-cooled plate to the main body of the water-cooling mechanism. The pressing claws include pressing claw 1 and pressing claw 2, which are respectively located on the left and right sides of the water-cooled plate. There are also two pressing cylinders, which are used to control the pressure of pressing claw 1 and pressing claw 2 respectively. Since the sizes of different models of laser pumps are different, pressing claw 1 and pressing claw 2 are moved by meshing motors, gears, rack 1 and rack 2 respectively, so as to change their orthogonal projection position on the laser pump, that is, to change the pressing position of pressing claw 1 and pressing claw 2 on the laser pump.

[0030] After the laser pump generates laser light under the action of the second power-on mechanism, it needs to be cooled by water cooling plates. Specifically, for example... Figure 13 As shown, the water-cooled plate includes an upper cover and a lower cover of the water-cooled plate, which are arranged opposite each other, and heat dissipation fins on the side of the upper cover facing the lower cover. The water-cooled plate has internal water channels and corresponding internal inlets and outlets, through which water is injected into the internal water channels. The water-cooled plate also includes a water spray pipe, and the upper cover of the water-cooled pipe has a water spray hole and a surface overflow micro-groove. The water spray pipe penetrates the water-cooled plate, and one end of the pipe is connected to a water spray nozzle. The water spray pipe can inject water into the upper cover of the water-cooled plate through the water spray hole, and the water sprayed from the nozzle will further flow into the surface overflow micro-groove. At this time, there is water flow between the upper surface of the water-cooled plate and the surface overflow micro-groove of the laser pump bottom surface, which can expel air between them to reduce contact thermal resistance and achieve cooling. Figures 13 to 16 In the illustrated embodiment, the upper surface of the water-cooled plate is further formed with a water-retaining dam surrounding its perimeter, a drainage channel surrounding the water-retaining dam, and a drainage hole. When the accumulated water level on the upper surface of the water-cooled plate exceeds the height of the surrounding water-retaining dam, the excess water overflows the water-retaining dam and flows through the drainage channel on the water-cooled plate into the drainage hole for discharge. The water-cooled plate in this application includes an internal water channel located inside the water-cooled plate, comprising an internal water channel, an internal inlet, and an internal outlet, as well as an external water channel. The external water channel includes a spray hole, an overflow micro-channel, a water-retaining dam, a drainage channel, and a drainage hole. Utilizing both internal and external water channels effectively removes the heat generated during the test, ensuring that the laser pump can operate normally even under high current.

[0031] like Figure 17The diagram shown is a structural schematic of the second power-applying mechanism provided in this application. This second power-applying mechanism is mainly used to apply voltage to the laser pump under test to cause it to emit laser light. Figure 17 The second power-on mechanism mainly includes a power-on probe, which is electrically connected to the laser pump to supply power to the laser pump. It also includes a microswitch and a sensor, which can be used to control the stability of the power-on and power-off processes. The second power-on mechanism also includes cylinders 1 and 2, which can be used to control the position of the power-on probe.

[0032] Please continue to refer to this. Figure 9 The main body of the measuring device also includes a laser protective shield, which is located on the side and top of the main body of the measuring device. This shield blocks the propagation path of the laser, preventing direct laser radiation onto the human body, and also reduces the risk of laser reflection and scattering, ensuring measurement accuracy. The main body of the measuring device provided in this application also includes a fiber optic power-off component, which is located inside the laser protective shield and on the light-emitting side of the main body of the measuring device. This component is mainly used to detect the energy level of the laser emitted by the laser pump, preventing excessive laser power from burning out the optical fiber and affecting the test. Specifically, as... Figure 18 The diagram shown is a structural schematic of one embodiment of the fiber optic power-off component provided in this application. Figure 19 This is a schematic diagram of the internal structure of the fiber optic power-off assembly provided in this embodiment. The assembly includes a water-cooled plate 3 and laser detection heads 1 and 2 fixedly connected to the water-cooled plate 3. Laser detection heads 1 and 2 receive laser beams to determine their energy or power. The water-cooled plate 3 has an inlet and an outlet on its side away from the laser detection heads 1 and 2, respectively. Water is supplied to the water-cooled plate 3 to cool the laser detection heads 1 and 2, preventing damage from excessive laser beam energy. When the laser beam is normal, it enters the laser detection heads 1 and 2 through the light inlets, is attenuated by attenuators in the laser detection heads 1 and 2, and is then transmitted to a photodiode. The photodiode determines the energy of the laser beam. If the second power-up mechanism applies a large voltage to both ends of the laser pump under test, causing the optical fiber in the laser pump to burn out and fail to generate a laser beam normally, then laser detection head 1 / laser detection head 2 will not receive a light signal. In this case, the controllable second power-up mechanism can immediately stop powering the laser pump to prevent damage to the internal components. In this application, if neither laser detection head 1 nor laser detection head 2 receives a light signal, it can be determined that a fiber burn-out problem has occurred, and power supply to the laser pump must be stopped immediately.

[0033] This application provides a measuring device body, which is mainly used to measure the divergence angle of a laser beam; Figure 20 A diagram showing the vertical position of the main swing arm axis of the measuring device provided in this application. Figure 21 This diagram shows the horizontal state of the main swing arm of the measuring device provided in this application. The main body of the measuring device comprises two modules: a support displacement stage and a multi-axis beam measuring device, with the multi-axis beam measuring device fixed above the support displacement stage. The support displacement stage supports the multi-axis beam measuring device and can move in multiple directions, causing the fixed multi-axis beam measuring device to move. The multi-axis beam measuring device is the main module for measuring the laser beam divergence angle, and it further includes several more subdivided functional modules that work together to detect the laser beam divergence angle.

[0034] exist Figure 20 and Figure 21 In the illustrated embodiment, the multi-axis beam measuring device is fixed above a support displacement stage, which can drive the multi-axis beam measuring device to move in multiple directions; for example, it can move in three directions corresponding to the X-axis, Y-axis, and Z-axis, which are perpendicular to each other. The multi-axis beam measuring device further includes a measuring device displacement stage, which is fixed above the support displacement stage. Other functional structures in the multi-axis beam measuring device are fixed on the measuring device displacement stage. The support displacement stage in this application can drive the multi-axis beam measuring device to perform displacements with lower precision but a larger range, while the measuring device displacement stage can drive other functional structures in the multi-axis beam measuring device to perform displacements with higher precision but a smaller range. Figure 20 and Figure 21 In the middle, the displacement stage of the measuring device includes a first displacement module Ry axis, such as Figure 22 The diagram shown is a structural schematic of one embodiment of the first displacement module provided in this application. Figure 22 In the structure shown, the first displacement module is a hollow disk-shaped structure. The first displacement module also includes a protruding structure with a through hole at its center to form a hollow region. The first displacement module in this application includes a first hollow region, and the first displacement module is perpendicular to the supporting displacement stage.

[0035] The multi-axis beam measurement device also includes a swing arm shaft. The swing arm shaft has a rectangular parallelepiped structure, with one end being a hollow disk-shaped structure. The swing arm shaft includes a second hollow region. One end of the disk-shaped structure of the swing arm shaft is fitted into the first displacement module. Please refer to [reference needed]. Figure 20 and Figure 21The disc-shaped structure in the swing arm shaft is fitted to the disc-shaped structure in the first displacement module, and one end of the disc-shaped structure of the swing arm shaft can rotate relative to the first displacement module. When one end of the disc-shaped structure of the swing arm shaft rotates relative to the first displacement module, the swing arm shaft rotates mainly around the axis where its second hollow region is located as the center of rotation. The position of the first displacement module remains unchanged, and the relative position between one end of the disc-shaped structure of the swing arm shaft and the first displacement module also remains unchanged, while the position of the other end of the swing arm shaft away from the first displacement module changes. Therefore, in this application, rotating one end of the disc-shaped structure on the swing arm shaft can drive the entire swing arm shaft to rotate and displace.

[0036] Please continue to refer to this. Figure 20 and Figure 21 The multi-axis beam measuring device provided in this application also includes a swing arm and a swing arm connector. The swing arm connector is sleeved on the swing arm shaft, and one end of the swing arm is connected to the outside of the swing arm connector to movably connect the swing arm to the swing arm shaft. The swing arm connector can rotate to drive the swing arm to rotate around the swing arm shaft. Figure 20 In the illustrated embodiment, the swing arm shaft is perpendicular to the horizontal plane, and the swing arm is perpendicular to and movably connected to the swing arm shaft via a swing arm connector, while the swing arm is parallel to the horizontal plane; Figure 21 In the illustrated embodiment, after rotating the swing arm, the swing arm is positioned perpendicular to the horizontal plane, and at this time, the swing arm remains perpendicular to the swing arm axis. However, it should be noted that... Figure 20 and Figure 21 In the embodiment shown, the swing arm can rotate about the swing arm axis, so the swing arm axis is not always perpendicular to the swing arm.

[0037] The multi-axis beam measuring device provided in this application is mainly for measuring laser beams. Therefore, it also includes a measuring module, which is fixedly connected to the swing arm and fixed at the end of the swing arm away from the swing arm axis. The measuring module includes a measuring head, which is disposed at the end of the measuring module away from the swing arm. In one specific embodiment, the measuring head can be a photodiode, that is, a photodiode is used to detect the laser beam. It should be noted that the first hollow region on the first displacement module, the second hollow region on the swing arm, the measuring head, and the laser beam to be measured need to be on the same optical path so that the laser beam to be measured can pass through the second hollow region and the first hollow region in sequence before reaching the measuring head, and the measuring head can receive the laser beam to be measured for subsequent detection.

[0038] like Figure 23The diagram shown is another structural schematic of the swing arm provided in this application. In this application, the multi-axis beam measuring device also includes a positioning camera, which is also fixed on the swing arm shaft. The positioning camera is typically fixedly connected to the swing arm shaft. In some embodiments, the positioning camera can also be fixed on the swing arm connector, and the positioning camera and the swing arm are respectively located on opposite sides of the swing arm shaft or the swing arm connector. When the swing arm connector rotates, both the positioning camera and the swing arm will rotate accordingly, but the relative positions of the positioning camera and the swing arm will not change.

[0039] Before laser beam measurement, it is necessary to adjust the positions of the laser beam under test, the swing arm axis, the swing arm, and the measurement module to ensure that the laser beam under test, the first hollow region, the second hollow region, and the measurement module are on the same optical path. Therefore, a positioning camera is needed to position the laser beam under test to adjust its position. The specific process of using a positioning camera to position the laser beam under test to adjust its position will be described in subsequent embodiments and is not limited here. Since the laser generated by laser pumping is emitted through the fiber optic head, controlling the laser beam under test, the first hollow region, the second hollow region, and the measurement module to be on the same optical path is essentially controlling the fiber optic head, the first hollow region, the second hollow region, and the measurement module to be on the same optical path. Therefore, using a positioning camera to position the laser beam is also essentially using the positioning camera to position and adjust the position of the fiber optic head. In this embodiment, the measuring device displacement stage further includes a second displacement module (Rz axis) and a third displacement module (Rx axis). The second displacement module is fixed above the supporting displacement stage, and the third displacement module is fixed above the second displacement module. A mounting platform is formed on the side of the third displacement module away from the supporting displacement stage, and the first displacement module is vertically fixed on the mounting platform. That is, the second displacement module is in direct contact with the supporting displacement stage and is fixedly connected above it; while the first and third displacement modules are not in direct contact with the supporting displacement stage. In this embodiment, the first, second, and third displacement modules can drive the swing arm to move to adjust its position, thereby aligning the first hollow region, the second hollow region, the fiber optic head, and the measuring module.

[0040] Please continue to refer to this. Figure 20 and Figure 21The measuring device provided in this application also includes a first light source module and a second light source module. The bottom of the first light source module is fixed above the mounting platform formed by the third displacement module, and the first light source module and the swing arm shaft are respectively positioned at opposite edges of the mounting platform. The third displacement module includes a mounting component, one end of which is fixed to the edge of the mounting platform, and the second light source module is fixedly connected to the other end of the mounting component to connect the second light source module to the mounting platform. Both the first and second light source modules provided in this application are semi-enclosed modules. The first light source module includes a first light-emitting surface, and the second light source module includes a second light-emitting surface; both the first and second light-emitting surfaces face the fiber optic head. This allows the first and second light source modules to provide light-assisted positioning when positioning the fiber optic head using a positioning camera. When positioning the fiber optic head, the first / second light source module, the fiber optic head, and the positioning camera are all on the same positioning axis. In this embodiment, it is typically only necessary to position the fiber optic head in two different directions and adjust its position based on the positioning results; therefore, setting two light source modules at different locations is sufficient. In other embodiments, more or fewer light source modules can be set to position the fiber optic head according to actual needs; this application does not impose any limitations. Figure 20 Taking the illustrated embodiment as an example, the positioning camera is located above the fiber optic head, and the first light source module is located below the fiber optic head; at this time, the fiber optic head can be photographed and positioned in the vertical direction; Figure 21 In the embodiment shown, the positioning camera is located on the right side of the fiber optic head, and the second light source module is located on the left side of the fiber optic head. At this time, the fiber optic head can be photographed and positioned in the horizontal direction.

[0041] like Figure 24 The diagram shown is a schematic representation of an embodiment of the measurement module provided in this application. The measurement module includes a measuring head and a water-cooled plate. The two ends of the water-cooled plate are connected to the swing arm shaft and the measuring head, respectively. The measuring head includes a baffle on the periphery and a photodiode inside. A light inlet is provided on the baffle. The laser light emitted from the fiber optic head enters the measuring head through the light inlet and is captured by the photodiode inside the measuring head, thereby achieving the detection of the laser light. Please refer to... Figure 24 This is a schematic diagram of another embodiment of the multi-axis beam measurement device provided in this application. Figure 24The multi-axis beam measuring device also includes a measuring rod. One end of the measuring rod is connected to the first displacement module, and the measuring rod is parallel to the swing arm axis and both are located on the same side of the first displacement module. More specifically, the measuring rod is hollow so that the laser beam reaches the measuring head through the measuring rod. The other end of the measuring rod needs to extend to fit against the measuring module; more specifically, it needs to fit against the periphery of the measuring head in the measuring module, and the side of the measuring rod closest to the measuring head forms a light-emitting hole. The light-emitting hole on the measuring rod needs to coincide with the light-inlet hole on the periphery of the measuring head to guide the laser beam into the measuring head. It should be noted that the measuring rod in this application can be a telescopic measuring rod to accommodate more measuring device bodies, and before actual measurement, it is necessary to use a positioning camera to position and adjust the fiber optic head, as well as adjust the positions of the swing arm, swing arm axis, measuring head, and other structures to ensure that the fiber optic head, the first hollow region, the second hollow region, and the measuring head are located on the same optical axis. During the adjustment process, a measuring rod is needed to adjust the position of the measuring head to ensure that the laser beam fully enters the measuring head. After the adjustment is completed, when performing the actual divergence angle detection, since the swing arm axis needs to be moved to drive the measuring head, the measuring rod is not needed, and it is not necessary to ensure that the fiber optic head, the first hollow region, the second hollow region, and the measuring head are on the same optical axis. That is, this application actually performs two positioning and alignment processes. The first positioning and alignment requires the use of a measuring rod to structurally align the fiber optic head, the second hollow region of the swing arm, the first hollow region of the first displacement module, and the measuring head. The second positioning and alignment does not require the use of a measuring rod. Instead, the laser beam is used directly to determine the angular deviation between the measuring head and the center position of the first / second hollow region to adjust the position of the measuring head and ensure that the measuring head is aligned with the laser beam.

[0042] Based on the laser divergence angle measuring device disclosed in the foregoing embodiments, this application also provides a laser beam divergence angle measuring method, such as... Figure 25 As shown, the method includes: 101. Use a positioning camera to position the fiber optic head and adjust its position to align with the second hollow area.

[0043] 102. Control the swing arm to control the measuring head to obtain multiple first light intensity data.

[0044] 103. Use multiple first light intensity data to perform secondary positioning of the fiber optic head, and adjust the position of the fiber optic head to align with the measuring head.

[0045] For the laser beam divergence angle measurement method provided in this application, before measuring the laser beam to determine the divergence angle, it is necessary to adjust the positions of the fiber optic head, the first displacement module, the swing arm, and the measuring head to ensure subsequent measurement accuracy. In this application, the positions of these functional modules can be adjusted twice. The first adjustment can be performed using a support displacement stage for a smaller precision but wider adjustment range, while the second adjustment uses a measuring device displacement stage for a higher precision but smaller adjustment range. The final adjustment aims to ensure that the fiber optic head, the second hollow region on the swing arm, the first hollow region on the first displacement module, and the photodiode in the measuring head are all aligned on the same optical axis.

[0046] Since one end of the swing arm disc-shaped structure in this application is fixed to the first displacement module, when fixing the two, their positions can be adjusted to ensure that the first hollow region and the second hollow region coincide and align. In subsequent position adjustments, it is not necessary to adjust their relative positions again; only the relative positions between the swing arm, the fiber optic head, and the measuring head need to be adjusted. First, a positioning camera can be used to photograph and position the fiber optic head, and the position of the fiber optic head can be adjusted to coincide and align with the second hollow region based on the photographic positioning results. For example... Figure 26 The diagram shown is a flowchart illustrating an embodiment of adjusting the position of the optical fiber head provided in this application. In some embodiments, using a positioning camera to position the optical fiber head and adjusting its position to align with the second hollow region may include: 201. Move the positioning camera to the first preset position and take a picture of the fiber optic head to determine the first position of the fiber optic head.

[0047] 202. Move the positioning camera to the second preset position and take a picture of the fiber optic head to determine the second position of the fiber optic head.

[0048] 203. Based on the first position and the second position, determine the first distance coordinates between the fiber optic head and the center of the positioning camera's field of view; 204. Determine the second distance coordinates between the center of the positioning camera's field of view and the center of the second hollow region; 205. Based on the first distance coordinate and the second distance coordinate, control the movement of the support displacement stage to adjust the position of the fiber head to align with the center of the second hollow region.

[0049] like Figure 27 The image shown is a schematic diagram of the field of view of the positioning camera provided in this application. Figure 27 Taking the illustrated embodiment as an example, after the fiber optic head is fixed, the positioning camera can be moved to the first preset position, and the positioning camera is in a vertical position. Figure 20The location shown is used to photograph and position the fiber optic head, determining its initial position and calculating the distance between the fiber optic head end face and the camera's field of view. Then, the first displacement module is rotated 90° to move the positioning camera to a second preset position, with the camera in a horizontal position. Figure 20 The fiber optic head is positioned by taking pictures at the specified location, and the second position of the fiber optic head is determined, along with the distance between the fiber optic head end face and the center of the camera's field of view. Based on the first and second positions determined by the pictures taken from both sides, the first distance coordinates (x1, y1, z1) between the fiber optic head and the center of the camera's field of view can be calculated. In this application, the center of the swing arm sphere during rotation is defined as the virtual intersection point of the swing arm axis and the rotation axis corresponding to the first displacement module, i.e., the virtual intersection point of the rotation axis corresponding to the first hollow region and the second hollow region. It is also necessary to obtain the second distance coordinates (x2, y2, z2) between the center of the swing arm sphere and the center of the camera's field of view, which can also be considered as determining the second distance coordinates between the center of the camera's field of view and the center of the first hollow region / the center of the second central region. Based on the first and second distance coordinates, the support displacement stage can be moved to control the movement of the fiber optic head, ensuring that the center of the swing arm sphere coincides with the end face of the fiber optic head, i.e., controlling the position of the fiber optic head to coincide and align with the second hollow region. Specifically, the support displacement stage can be controlled to move x1+x2, y1+y2, and z1+z2 in the X, Y, and Z axes respectively, so that the position of the fiber head coincides and aligns with the second hollow region.

[0050] The foregoing embodiments describe a preliminary alignment using a support displacement stage with lower precision but a larger adjustment range. A secondary alignment using a measuring device displacement stage is then required, with higher precision but a smaller adjustment range. Prior to this, a measuring rod can be used to adjust the position of the measuring head to ensure alignment between the photodiode in the measuring head and the first hollow region in the first displacement module. At this point, the center of the swing arm sphere becomes the moving center of the sphere during the subsequent photodiode displacement process. After aligning the fiber optic head and the second hollow region, as well as the photodiode and the first hollow region, the position of the fiber optic head needs to be fine-tuned to ensure alignment between the fiber optic head end face and the photodiode. In some embodiments of this application, the swing arm can be controlled to measure multiple first light intensity data points, and the deviation between the fiber optic head and the measuring head can be determined based on these multiple first light intensity data points, thereby adjusting the position of the fiber optic head.

[0051] like Figure 28 The figure shown is a coordinate diagram illustrating the relationship between angle and light intensity during the measurement of the light spot center according to an embodiment of this application. Figure 28In this diagram, the center of the light spot is the center of the laser beam to be measured. Before obtaining multiple first light intensity data, the end face of the fiber optic head is aligned with the second hollow region, that is, the center of the light spot is aligned with the center of the swing arm sphere. During the swinging of the swing arm, the measuring head will shift and form a certain angle with the center of the light spot. At this time, the angle between the measuring head and the center of the light spot, as well as the light intensity at different positions of the measuring head, are recorded, thus obtaining the following data: Figure 28 The graph shows the relationship between angle and light intensity. Figure 28 In the coordinate graph, the horizontal axis α represents the angle between the measuring head and the center of the light spot, and the vertical axis a represents the light intensity; however, it should be noted that... Figure 28 In this process, the angle corresponding to the maximum light intensity is usually set as the zero-degree angle between the center of the light spot and the measuring head, while the angles on both sides of the zero-degree angle represent the two different directions in which the measuring head can be displaced.

[0052] for Figure 28 In this case, the maximum value (amax) among multiple initial light intensity data can be determined, and a straight line parallel to the horizontal axis can be drawn with a1 (80% of the maximum light intensity value) intersecting the curve at points P1 and P2. For example... Figure 29 As shown, the equation of the straight line between two adjacent points P4 and P5 of P1 is obtained by fitting the lines together: Since a1 = 80%amax, substituting it into the aforementioned linear equation yields: Similarly, such as Figure 30 As shown, the equation of the straight line between points P6 and P7 is fitted. Substituting a2 = 80% amax into the equation, we obtain the fitted equation. Therefore, the angle between the zero-degree angle of the photodiode arm and the center of the laser beam spot in the horizontal direction can be calculated:

[0053] like Figure 31 As shown, at this time, the second displacement module can be controlled to deflect the corresponding angle α3 to ensure that the zero-degree angle of the photodiode arm coincides with the center of the light spot. Similar to the previous embodiment, the same calculation method can be used to measure the angle between the zero-degree angle of the photodiode arm and the center of the light spot in the vertical direction, and the third displacement module can be controlled to deflect the corresponding angle to ensure that the zero-degree angle of the photodiode arm coincides with the center of the light spot. For this application, the first alignment mainly ensures the structural alignment of the fiber optic head, the arm, and the measuring head, while the second alignment ensures the alignment of the light emitted from the fiber optic head and the measuring head.

[0054] 204. Control the swing arm to swing at a constant speed within a first preset range to control the measuring head to measure and obtain multiple second light intensity data.

[0055] 205. The position and magnitude of the divergence angle are calculated using multiple second light intensity data.

[0056] After aligning the fiber optic head and the measuring head, the swing arm can be controlled to swing within a certain range, and light intensity data can be acquired. Based on the acquired light intensity data after alignment, the position and magnitude of the divergence angle can be calculated. Specifically, for example... Figure 31 The diagram shown illustrates the angle between the swing arm and the center of the light spot provided in this application. This allows the swing arm to control the photodiode within a preset angle range. The device moves at a constant speed within a defined area and performs point movements to control the photodiode in the measuring head to collect multiple second light intensity data at different positions. For example... Figure 32 The diagram shown is a schematic of a single measurement of the swing arm shaft provided in an embodiment of this application. Figure 33 The diagram shown is a rotational schematic of the first displacement module measuring the divergence angle according to an embodiment of this application. The rotation of the first displacement module can be controlled to control the swing arm to move at a constant speed within a certain angle range. The photodiode performs a constant-speed scan of m times, and the number of light intensity data points recorded in a single scan is n, thus obtaining a data set of m*n light intensity data points, aij (i=1, 2, ..., m; j=1, 2, ..., n) arranged in m rows and n columns, denoted as:

[0057] In the actual acquisition of the second light intensity data, the swing arm can be rotated in different directions with the center of the swing arm as the center. Each rotation follows a circular trajectory, and these circles form a sphere centered on the swing arm. The photodiode collects light intensity data at different locations on the spherical surface. For example... Figure 34 The diagram shown is a schematic representation of the light intensity distribution spherical cap surface provided in this application. As the swing arm moves, the photodiode can collect multiple second light intensity data. amn is called the element in the m-th row and n-th column of matrix A; a1 is the average value of the first column, a1=(a11+a21+…+am1) / m; a2 is the average value of the second column, a2=(a12+a22+…+am2) / m; an is the average value of the n-th column, an=(a1n+a2n+…+amn) / m like Figure 35 The diagram shows the relationship between the number of scanning points and the spot ring when the number of measurement points in a single measurement is odd. When n is odd, the relationship between the number of scanning points n and the spot ring is as follows: Figure 35 As shown, the formula for calculating the divergence angle based on multiple second light intensity data is as follows:

[0058] The swing arm scans at a constant speed along multiple directions at a certain angle to measure the light intensity distribution at various points on the spherical surface in space. The collected light intensity data is used to calculate the power distribution at different points on the spherical surface. The calculated light cone angle at the 99% light intensity power percentage lies between the k-th and (k+1)-th rings, with corresponding power percentages of... and The corresponding angle and It can be done through, for example Figure 37 The diagram shown illustrates the calculation of the divergence angle, fitting two points. and The equation of the straight line between ,Will Substituting the equation of the line into the equation will give you the corresponding angle. Then the divergence angle can be obtained. .

[0059] When n is even, the relationship between the number of scan points n and the spot ring is as follows: Figure 36 As shown, the formula for calculating the divergence angle is as follows:

[0060] The calculated light cone angle at the 99% light intensity power ratio falls between the k-th ring and the (k+1)-th ring, with corresponding power ratios of... and The corresponding angle and It can be done through, for example Figure 37 The two points are fitted as shown. and The equation of the straight line between them is:

[0061] Will Substituting the equation of the line into the equation of the line will give the corresponding angle. Then we can obtain .

[0062] In this application, the position corresponding to 99% power of the laser beam is determined by calculating multiple second light intensity data. The angle between this position and the center of the light spot at the fiber optic head is the divergence angle, which can be used to determine the position and magnitude of the divergence angle.

[0063] Because the laser pump is cooled using a water circuit during divergence angle measurement, it needs to be wiped dry after the measurement to remove any residual moisture. Figure 38 This is a schematic diagram of the water-wiping mechanism provided in the embodiments of this application. Figure 38In the illustrated embodiment, the wiping mechanism mainly includes a water receiving tank and a wiping cloth positioned above the water receiving tank. Since the water-cooled plate is located below the laser pump, moisture remains below the laser pump. A robotic arm can move the laser pump to the wiping mechanism, specifically, it can be moved and placed above the wiping cloth, which is then used to wipe the bottom of the laser pump dry. The water discharged by the laser pump flows into the water receiving tank and is then discharged through a drain outlet on the side of the tank, thus drying the laser pump.

[0064] like Figure 39 The diagram shown is a structural schematic of the storage station provided in this application. The storage station in this application includes a first storage station (NG1) and a second storage station (NG2). The two storage stations and the unloading bin are used to store laser pumps with different detection results. Figure 39 For example, the storage station mainly includes multiple limiting rods for limiting multiple laser pumps, allowing the multiple laser pumps to be stacked; it also includes a full-material detection sensor and an empty-material detection sensor, used to detect whether the storage station is full or empty, respectively. The first storage station and the second storage station in this application have the same structure.

[0065] like Figure 40 The diagram shown is a structural schematic of the wavelength power testing mechanism provided in this application. This wavelength power testing mechanism is mainly used to detect the wavelength and power of the laser emitted by the laser pump. Figure 40 In this application, the wavelength power testing mechanism mainly includes a first water-cooling mechanism, a first power-on mechanism, a fiber-gluing mechanism, and an integrating sphere. All four mechanisms are fixed to the worktable. The laser pump is placed above the first water-cooling mechanism, which is used to cool the laser pump. The first power-on mechanism is fixed to the first water-cooling mechanism and supplies power to the laser pump. The first and second water-cooling mechanisms in this application have the same structure, as do the first and second power-on mechanisms, and will not be described further here. Figure 41 The diagram shown is a schematic of the fiber-picking mechanism provided in an embodiment of this application. The laser pump in this application includes an optical fiber and an optical fiber head. Laser light is emitted from the optical fiber head to power the laser pump for testing. The fiber-picking mechanism in this application needs to pull out the optical fiber head from the laser pump and insert it into the integrating sphere for more accurate testing of the laser's wavelength and power. This fiber-picking mechanism mainly includes a fiber-picking cylinder and a lever. The fiber-picking cylinder can drive the lever to move in different directions to accurately clamp the optical fiber head and insert it into the integrating sphere. A clamp is provided at the end of the lever near the laser pump, which can be used to clamp the optical fiber head. Two fiber-picking cylinders may be included in this application. Figure 41 The illustrated embodiment is an example. Figure 41Cylinder 1 can control the lever to move back and forth along the extension direction of the laser pump towards the integrating sphere, and cylinder 2 can control the lever to move left and right along the extension direction from the upper hopper to the lower hopper.

[0066] like Figure 42 The diagram shown is a structural schematic of the integrating sphere provided in an embodiment of this application. The integrating sphere is a hollow sphere with a light-entry hole. A lever can hold the fiber optic tip and insert it into the integrating sphere through the light-entry hole. The interior of the integrating sphere is coated with a high-reflectivity material, exhibiting diffuse reflection characteristics. The laser light at the fiber optic tip undergoes multiple diffuse reflections within the integrating sphere, resulting in a uniform light distribution. Therefore, measuring the laser power and wavelength at this point yields higher accuracy. Please continue to refer to... Figure 42 The integrating sphere also includes two light-emitting apertures, a photodiode, and a spectrometer arranged opposite each other. The photodiode and the spectrometer are respectively arranged corresponding to one of the light-emitting apertures. The photodiode can test the power of the laser pump, while the spectrometer is used to test the wavelength of the laser pump.

[0067] like Figure 3 The diagram shown is a schematic of the overall water circuit provided in this application. For the wiping mechanism, the wastewater collected in the water receiving tank of the wiping mechanism can be directly discharged into the wastewater tank; the first water cooling mechanism and the second water cooling mechanism respectively use peristaltic pump 1 and peristaltic pump 2 to transport water in the water storage tank to the upper surface of water cooling plate 1 / water cooling plate 2 through water spray holes, and the wastewater flowing on the upper surface of water cooling plate 1 / water cooling plate 2 is also directly discharged into the wastewater tank. For water-cooled plate 1 / 2, water-cooled plate 3 in the fiber optic power-off assembly, and water-cooled plate 4 in the main body of the measuring device, the water chiller delivers water to the water pipe adapter block, which is connected to the integrating sphere, water-cooled plate 2, and water-cooled plate 4 respectively. The water discharged from the integrating sphere continues to flow into water-cooled plate 1, and the water discharged from water-cooled plate 2 flows into water-cooled plate 3. Finally, the water discharged from water-cooled plate 1, water-cooled plate 2, and water-cooled plate 4 all flow into a water pipe conversion module, which is then connected to the water inlet of the water chiller, thereby realizing the recycling of water.

[0068] like Figure 44 The flowchart shown is a process for an automated laser pumping testing method provided in this application, which may include the following steps: 301. Load the laser pump to be tested into the loading hopper.

[0069] 302. Control the right robotic arm to move the laser pump to be measured to the laser beam divergence angle measuring mechanism to measure the divergence angle.

[0070] 303. If the divergence angle of the laser pump under test meets the preset divergence angle, control the right robotic arm to move the laser pump under test to the wavelength power testing mechanism for testing.

[0071] 304. If the divergence angle of the laser pump under test does not meet the preset divergence angle, control the right robot arm to move the laser pump under test to the water wiping mechanism for water wiping, and then move the water-wiped laser pump under test to the second storage station for storage.

[0072] 305. If the wavelength power of the laser pump under test meets the preset wavelength power requirement, control the left robot to move the laser pump under test to the wiping mechanism for wiping, and then move the wiped laser pump under test to the unloading bin for storage.

[0073] 306. If the wavelength power of the laser pump under test does not meet the preset wavelength power requirement, control the left robot arm to move the laser pump under test to the wiping mechanism for wiping, and then move the wiped laser pump under test to the next first storage station for storage.

[0074] The automatic laser pumping testing process provided in this application will be described in detail below with reference to the accompanying drawings: The multiple laser pumps under test in this application are stacked in a manner such as Figure 3 Figure 4 The jig shown is placed in the fixture shown, and then the fixture is placed as follows: Figure 5 Figure 6 The hydraulic trolley shown is used for loading; specifically, the hydraulic trolley can be used to move the fixture loaded with multiple laser pumps to be tested to a position such as... Figure 7 The loading hopper bracket is shown. When automated testing of the laser pump under test is required, the right robotic arm can first pick up a laser pump under test and move it into the main body of the measuring device; specifically, the laser pump under test can be placed above the second water-cooling mechanism, with the light-emitting side of the laser pump facing the main body of the measuring device. When the laser pump is placed above the second water-cooling mechanism, the clamping cylinder and clamping claw in the second water-cooling mechanism are also needed to press the laser pump firmly above the water-cooling plate 2. At the same time, the second power-on mechanism in the main body of the measuring device applies voltage to the laser pump, causing the laser pump to emit laser light to the main body of the measuring device, and the main body of the measuring device works normally to measure the divergence angle of the laser beam. During the laser pump power-on test, the second water-cooling mechanism is also needed to cool the laser pump (mainly the fixture containing the laser pump); specifically, a peristaltic pump is used to inject water between the laser pump ground and the upper surface of the water-cooling plate 2 through the water spray holes and surface overflow micro-grooves in the water-cooling plate 2 to remove the air between them and reduce the contact thermal resistance. When the water level accumulated on the upper surface of the water-cooled plate 2 in the second water-cooling mechanism is higher than the height of the surrounding water-retaining dam, the excess water will overflow the water-retaining dam and be discharged from the drain hole at the lowest point of the drainage channel on the water-cooled plate 2. At the same time, the water-cooled plate 2 is also equipped with an internal water channel. By setting up external and internal water channels, a large amount of heat generated during the test can be removed, ensuring that the laser pump can work normally under high current.

[0075] During the divergence angle test of the laser emitted by the laser pump, a fiber burn-out power-off assembly is required to ensure the safe operation of the laser pump. Specifically, the fiber burn-out power-off assembly is located at the end of the measuring device body furthest from the second water-cooling mechanism. When neither laser detection head 1 nor laser detection head 2 in the fiber burn-out assembly receives a light signal, it can be determined that the laser power is too high and a fiber burn-out problem has occurred. Power to the laser pump must be stopped immediately to prevent damage to the internal components of the laser pump. A microswitch is installed at the power-on probe in the second power-on mechanism to ensure the stability of the power-on and power-off processes.

[0076] If the divergence angle of the laser pump under test meets the preset divergence angle, the right robotic arm can be controlled to move the laser pump under test to the wavelength power testing mechanism for subsequent testing. If the divergence angle of the laser pump under test does not meet the preset divergence angle, the right robotic arm is controlled to move the laser pump under test to the wiping mechanism for wiping and drying, and then the right robotic arm is controlled to move the wiped laser pump under test to the second storage station for storage. When the laser pump under test is moved to the wavelength power testing mechanism for testing, it is also placed above the first water-cooling mechanism and cooled down by the first water-cooling mechanism. At the same time, when the material sensor detects that the laser pump under test has moved above the first water-cooling mechanism, the motor in the first water-cooling mechanism can determine the product type loaded on the fixture at this time based on the barcode information corresponding to the laser pump, and drive the clamping cylinders and clamping claws on both sides to move to the designated position and press down on the laser pump to press the laser pump on top of the first water-cooling mechanism. The first and second water-cooling mechanisms have similar structures, both utilizing internal and external water channels for water cooling of the laser pump. When the laser pump is pressed against the first water-cooling mechanism, a fiber-feeding mechanism is used to clamp the fiber head of the laser pump. With the coordinated movement of cylinders 1 and 2 within the fiber-feeding mechanism, the fiber head is guided from the light inlet of the integrating sphere into the interior of the integrating sphere. The first power-on mechanism then powers the laser pump to control the laser emission from the fiber head. The laser light undergoes diffuse reflection within the integrating sphere, resulting in a uniform light distribution.

[0077] The integrating sphere also has two opposing light-emitting apertures. A spectrometer and a photodiode are respectively installed on the light-emitting side of each aperture. The spectrometer measures the wavelength of the laser pump, and the photodiode measures the power of the laser pump. Before the initial testing by the wavelength and power detection mechanism, the integrating sphere needs to be calibrated using a standard pump. The specific calibration method for wavelength is as follows: after energizing the standard pump to a specified current point, the initial wavelength parameter λ1 is obtained by measuring with the spectrometer integrated inside the integrating sphere. Given that the wavelength of the standard pump at a specific current is λ0, the standard deviation of the wavelength of this integrating sphere measurement system is Δλ = λ0 - λ1. The specific calibration method for power is as follows: after energizing the standard pump to a specified current point, the initial power value b1 is obtained by the photodiode integrated inside the integrating sphere. Given that the power of the standard pump at a specific current is P0, the power coefficient of this integrating sphere measurement system is k = P0 / b1. In actual production, before each shift, the stability of the integrating sphere measurement system's Δλ and k needs to be checked using standard parts and the calibration method described above. If the two parameters obtained from the standard parts calibration at the start of the day are within the allowable range of the process compared to the initial calibration, the equipment can begin normal production. During actual production, after the integrating sphere system measures the wavelength value λ2 and the photodiode value b2, the host computer needs to process the data and provide two measurement parameter results: wavelength λ3 = λ2 + Δλ and power P2 = k * b2 = P0 b2 / b1. If the two parameters obtained are not within the range, manual intervention is required to investigate the cause of the abnormality.

[0078] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0079] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic laser-pumped testing device, characterized in that, The device includes a worktable, a laser pump testing device, and a laser pump displacement device. Both the laser pump testing device and the laser pump displacement device are fixed on the worktable. The laser pump testing device is used to test the laser pump, and the laser pump displacement device is used to move the laser pump under test in the laser pump testing device to perform different types of tests on the laser pump under test. The laser pump testing device comprises, in sequence, a loading bin, a first storage station, a second storage station, a laser beam divergence angle measuring mechanism, a water wiping mechanism, a wavelength power testing mechanism, and a unloading bin. The loading bin holds the laser pump to be tested. The first storage station is used to hold the laser pump to be tested with abnormal wavelength power. The second storage station is used to hold the laser pump to be tested with abnormal divergence angle. The water wiping mechanism is used to wipe the laser pump to be tested with water. The wavelength power testing mechanism is used to detect the wavelength power of the laser pump to be tested. The unloading bin is used to hold the laser pump to be tested without abnormalities. The laser pump displacement device includes a dual-head three-axis manipulator mechanism, which includes a manipulator slide, a left manipulator and a right manipulator slidably disposed on the manipulator slide. The manipulator slide extends along the direction from the upper hopper to the lower hopper, and the left manipulator and the right manipulator are disposed opposite to each other. When the divergence angle of the laser pump under test meets the preset divergence angle, the right robotic arm is used to transport the laser pump under test to the wavelength power testing mechanism. When the divergence angle of the laser pump under test does not meet the preset divergence angle requirement, the right robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then move the wiped laser pump under test to the second storage station for storage. When the wavelength power of the laser pump under test meets the preset wavelength power requirement, the left robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then transport the wiped laser pump under test to the unloading hopper for storage. When the wavelength power of the laser pump under test does not meet the preset wavelength power requirement, the left robotic arm is used to transport the laser pump under test to the wiping mechanism for wiping, and then transport the wiped laser pump under test to the first storage station for storage. The laser beam divergence angle measuring mechanism includes a measuring device body, a second water cooling mechanism, and a second power supply mechanism, all of which are fixed on the worktable. The main body of the measuring device is used to measure the divergence angle of the laser pump under test; The second water-cooling mechanism is disposed on the side of the measuring device body away from the laser pump displacement device. The laser pump to be tested is placed above the second water-cooling mechanism, and the light-emitting side of the laser pump to be tested faces the measuring device body. The second water-cooling mechanism is used to inject water into the bottom of the laser pump to be tested to reduce the thermal resistance between the second water-cooling mechanism and the laser pump to be tested. The second power-on mechanism is used to power the laser pump under test so that the laser pump under test emits laser light for divergence angle testing; The wavelength power testing mechanism includes a first water-cooling mechanism, a first power-on mechanism, a fiber-gluing mechanism, and an integrating sphere, all of which are fixed on the worktable. The laser pump is placed above the first water-cooling mechanism, which is used to cool the laser pump with water. The first power supply mechanism is fixed on the first water cooling mechanism, and the first power supply mechanism is used to supply power to the laser pump; The fiber pulling mechanism is disposed between the first water cooling mechanism and the integrating sphere. The fiber pulling mechanism is used to pull the fiber head out of the laser pump and send the fiber head into the integrating sphere. The integrating sphere is used to test the wavelength and power of the laser pump.

2. The automatic laser-pumped testing device according to claim 1, characterized in that, The robotic arm slide includes an X-axis beam extending from the upper feed bin to the lower feed bin. An X-axis guide rail is formed above the X-axis beam. The left robotic arm / right robotic arm crosses the X-axis beam and is slidably mounted on the X-axis beam. The left robotic arm / right robotic arm can slide left and right along the X-axis guide rail. The left / right robotic arm includes a Y-axis guide rail that is perpendicular to the X-axis guide rail and parallel to the horizontal plane. The Y-axis guide rail is connected to the X-axis crossbeam via a Y-axis longitudinal beam. The left / right robotic arm can move back and forth along the Y-axis guide rail. The left / right robotic arm also includes a Z-axis guide rail that is perpendicular to the Y-axis guide rail and perpendicular to the horizontal plane. The Z-axis guide rail is connected to the X-axis crossbeam via an X-axis longitudinal beam. The left / right robotic arm can move up and down along the Z-axis guide rail. The left / right robotic arm also includes a gripper, which is fixed to the bottom of the Z-axis guide rail and can move along the XYZ direction.

3. The automatic laser-pumped testing device according to claim 1, characterized in that, The second water-cooling mechanism includes: Main body of the water-cooling mechanism; A water-cooled plate, which is fixed above the main body of the water-cooling mechanism by a clamping cylinder; The pressure claw is fixed above the main body of the water-cooling mechanism and positioned on the side of the water-cooling plate. The pressure claw is used to press the laser pump onto the water-cooling plate. A clamping cylinder is used to provide pressure to the clamping claw.

4. The automatic laser-pumped testing device according to claim 3, characterized in that, The water-cooled plate includes: The upper and lower covers of the water-cooled plate are positioned opposite each other; Heat dissipation fins are disposed on the side of the upper cover of the water-cooled plate facing the lower cover of the water-cooled plate, and the heat dissipation fins are used to dissipate heat from the laser pump. An internal water channel is provided between the upper cover of the water-cooled plate and the lower cover of the water-cooled plate. The internal water channel includes an internal water passage, an internal water inlet, and an internal water outlet. The internal water inlet is used to inject water into the internal water passage, and the internal water outlet is used to discharge water from the internal water passage. The water spray hole and the water spray pipe are provided. The water spray hole is disposed on the cover of the water-cooled plate, and the water spray pipe is disposed through the water-cooled plate. One end of the water spray pipe is connected to the water spray hole. The water spray pipe is used to inject water into the cover of the water-cooled plate through the water spray hole. A surface overflow micro-channel is provided on the cover of the water-cooled plate, and the water flow sprayed from the spray hole is stored in the surface overflow micro-channel.

5. The automatic laser-pumped testing device according to claim 1, characterized in that, The second power-on mechanism includes: An electrical probe is provided, and the second electrical mechanism is electrically connected to the main body of the measuring device via the electrical probe. A cylinder, used to control the movement of the electrical probe to adjust the position of the electrical probe; A microswitch is used to control the on / off state of the power-on probe.

6. The automatic laser-pumped testing device according to claim 1, characterized in that, The fiber picking mechanism includes a fiber picking cylinder and a lever. The fiber picking cylinder is used to drive the lever to move, and the lever is used to clamp the fiber head in the laser pump and send the fiber head into the integrating sphere.

7. The automatic laser-pumped testing device according to claim 1, characterized in that, The integrating sphere is a hollow sphere. The integrating sphere includes an entrance aperture to allow the laser emitted from the laser pump to enter the interior of the integrating sphere. The integrating sphere also includes two exit apertures, a photodiode, and a spectrometer arranged opposite each other. The photodiode and the spectrometer are respectively arranged corresponding to one of the exit apertures. The photodiode is used to test the power of the laser pump, and the spectrometer is used to test the wavelength of the laser pump.

8. An automatic testing method for laser pumping, characterized in that, The method, applied to the laser-pumped automatic testing apparatus as described in any one of claims 1 to 7, comprises: The laser pump to be tested is fed into the feeding hopper; The right robotic arm is controlled to move the laser pump under test to the laser beam divergence angle measuring mechanism to measure the divergence angle; If the divergence angle of the laser pump under test meets the preset divergence angle, the right robotic arm is controlled to move the laser pump under test to the wavelength power testing mechanism for testing; If the divergence angle of the laser pump under test does not meet the preset divergence angle requirement, the right robot arm is controlled to move the laser pump under test to the wiping mechanism for wiping, and the wiped laser pump under test is moved to the second storage station for storage. If the wavelength power of the laser pump under test meets the preset wavelength power requirement, the left robotic arm is controlled to move the laser pump under test to the wiping mechanism for wiping, and the wiped laser pump under test is moved to the unloading bin for storage. If the wavelength power of the laser pump under test does not meet the preset wavelength power requirement, the left robotic arm is controlled to move the laser pump under test to the wiping mechanism for wiping, and the wiped laser pump under test is then moved to the first storage station for storage.

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