Open type pump laser detection device

Abstract

The utility model relates to an open type pump laser detection device, comprising a pedestal; the integrating sphere, the light beam quality analyzer, the laser power meter and the spectrum analyzer are arranged on the base, and the integrating sphere is connected with the light beam quality analyzer; the sample supporting mechanism is arranged on the base and comprises a sample mounting plate connected to the base, the sample mounting plate comprises a positioning plane for mounting a laser, and the sample mounting plate is connected with a temperature sensor for detecting the temperature of the laser connected to the sample mounting plate; the sample mounting plate can move relative to the base in the vertical direction and the first horizontal direction, the sample mounting plate can rotate relative to the base around a first axis and can rotate to a positioning plane to be perpendicular to the first direction, and the sample supporting mechanism and the integrating sphere are distributed at intervals in the first direction; and the positioning plane faces the incident window of the integrating sphere in a vertical state. According to the invention, the whole detection process of the laser is simple to operate, and the detection efficiency of the laser is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lasers, in particular to an open pump laser detection device. Background Art

[0002] In the field of laser technology, open-type pump lasers are widely used in many fields due to their unique structure and operating principle. Testing the performance of lasers, such as output power, beam quality, spectrum, and operating temperature, is crucial for laser quality control.

[0003] The quality detection of the laser output beam is generally carried out through an integrating sphere and a beam quality analyzer. The laser output beam is input into the integrating sphere, and the beam quality analyzer is connected to the integrating sphere through an optical fiber jumper, so that the laser output beam quality is analyzed by the beam quality analyzer.

[0004] When testing a laser, the laser is usually connected to an integrating sphere so that the laser output beam enters the integrating sphere from the incident window of the integrating sphere. The operation of connecting the laser and the integrating sphere is relatively complicated, resulting in low efficiency of the testing work. Utility Model Content

[0005] Based on the above description, the present invention provides an open pump laser detection device to solve the problem in the related art that the operation of connecting the laser and the integrating sphere is relatively complicated, resulting in low efficiency of the detection work.

[0006] The technical solution of the utility model to solve the above technical problems is as follows:

[0007] This application provides an open pump laser detection device, the technical solution adopted is as follows:

[0008] An open pump laser detection device, comprising:

[0009] base;

[0010] An integrating sphere, a beam quality analyzer, a laser power meter and a spectrum analyzer are arranged on the base, wherein the integrating sphere is connected to the beam quality analyzer;

[0011] A sample support mechanism is provided on the base, the sample support mechanism includes a sample mounting plate connected to the base, the sample mounting plate includes a positioning plane for sample mounting, the sample mounting plate is connected to a temperature sensor for detecting the temperature of a laser connected thereto, the sample mounting plate can move relative to the base in a vertical direction and a first horizontal direction, the sample mounting plate can rotate relative to the base around a first axis, and can be rotated until the positioning plane is perpendicular to the first direction, the sample support mechanism and the integrating sphere are spaced apart in the first direction, and the positioning plane faces the incident window of the integrating sphere when in a vertical state.

[0012] Preferably, the sample support mechanism further comprises a connecting structure connecting the sample mounting plate and the base, wherein the connecting structure comprises:

[0013] a fixed support connected to the base and movable relative to the base in a vertical direction and a first direction;

[0014] a rotating connecting plate connected to the fixed support and rotatable relative to the fixed support about a first axis, the sample mounting plate being connected to the rotating connecting plate;

[0015] A driving mechanism connects the fixed support and the base, and is used to drive the fixed support to move along the vertical direction and the first direction.

[0016] Preferably, a water cooling plate is connected to a side of the sample mounting plate away from the positioning plane.

[0017] Preferably, the sample mounting plate and the water cooling plate are connected via an insulating block.

[0018] Preferably, the driving mechanism includes a translation platform and a lifting platform, the translation platform is used to drive the fixed support to move along the first direction, and the lifting platform is used to drive the fixed support to move along the vertical direction.

[0019] Preferably, the sample support mechanism can be moved relative to the base along a horizontal second direction, the second direction is perpendicular to the first direction, and in the first direction, the laser power meter and the sample support mechanism are spaced apart, the spectrum analyzer and the sample support mechanism are spaced apart, and the integrating sphere, the laser power meter and the spectrum analyzer are spaced apart in the second direction.

[0020] Preferably, the first axis is horizontal and parallel to the positioning plane.

[0021] Compared with the prior art, the technical solution of this application has at least the following beneficial technical effects:

[0022] 1. This application detects the quality of the laser output beam by cooperating with an integrating sphere and a beam quality analyzer, detects the output power of the laser by a laser power meter, detects the spectral characteristics of the laser output laser by a spectrum analyzer, and detects the operating temperature of the laser by a temperature sensor to achieve the detection of laser performance. A sample support mechanism is set to support the sample, wherein a sample mounting plate is provided for laser mounting. During detection, the laser is mounted on the positioning plane of the sample mounting plate. When the sample mounting plate is rotated to a vertical position, the positioning plane faces the incident window of the integrating sphere, that is, the laser faces the incident window of the integrating sphere. The height of the laser is adjusted by lifting and lowering the sample mounting plate so that it is consistent with the height of the incident window of the laser. The sample mounting plate is moved close to the integrating sphere in a first direction so that the laser fits the side wall where the incident window of the integrating sphere is located, and the laser output is input into the integrating sphere, that is, the connection between the laser and the integrating sphere is achieved. The laser is easy to connect to the integrating sphere, and the laser can be connected to the laser power meter and spectrum analyzer via fiber optic jumpers. The operating temperature of the laser is detected by a temperature sensor connected to the sample mounting plate. The entire detection work only requires installing the laser on the sample mounting plate, rotating and moving the sample mounting plate, and performing wiring operations. The entire detection process is simple to operate, thereby effectively improving the efficiency of laser detection work.

[0023] 2. This application cools down the laser under test by setting a water-cooling plate to avoid damage caused by excessive operating temperature during the laser detection process, and sets an insulating block to insulate the laser from the water-cooling plate, even if the laser under test is insulated from other structures, reducing safety hazards.

[0024] 3. In the present application, the sample support mechanism is configured to be movable relative to the base along the second direction, and the integrating sphere, the laser power meter, and the spectrum analyzer are spaced apart in the second direction. The sample mounting plate can be moved along the second direction by moving the sample support mechanism. The sample mounting plate can be moved to the point where the laser power meter is located on the output laser optical path or the spectrum analyzer is located on the output laser optical path, respectively, so that the laser output can be directly input into the laser power meter or the spectrum analyzer, thereby directly detecting the output power and spectral characteristics of the laser, thereby improving the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of an open pump laser detection device provided in an embodiment of the present utility model;

[0026] Figure 2 A schematic structural diagram of a sample support mechanism in an open pump laser detection device provided by an embodiment of the present utility model;

[0027] Figure 3This is a schematic diagram of the sample mounting plate in the open pump laser detection device provided by an embodiment of the present utility model when it is rotated to a vertical state.

[0028] Description of reference numerals:

[0029] 1. Base; 2. Integrating sphere; 3. Laser power meter; 4. Spectrum analyzer; 5. Sample support mechanism; 51. Sample mounting plate; 511. Positioning plane; 52. Temperature sensor; 53. Fixed support; 531. Bottom plate; 532. Side plate; 533. Limit block; 54. Rotating connecting plate; 55. Water cooling plate; 56. Insulation block; 57. Translation stage; 58. Lifting platform; 6. Guide rail. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0032] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0033] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.

[0034] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0035] Reference Figure 1-3 As shown, an embodiment of the present application provides an open pump laser detection device, including a base 1 and an integrating sphere 2 provided on the base 1, a beam quality analyzer (not shown in the figure), a laser power meter 3, a spectrum analyzer 4 and a sample support mechanism 5, wherein the integrating sphere 2 is connected to the beam quality analyzer and is used to detect the output laser quality of the laser, the laser power meter 3 is used to detect the output power of the laser, and the spectrum analyzer 4 is used to detect the spectral characteristics of the laser output laser.

[0036] Reference Figure 1-2 As shown, the sample supporting mechanism 5 is used to support the sample, and includes a sample mounting plate 51 connected to the base 1. The sample mounting plate 51 includes a positioning plane 511 for mounting the laser. The sample mounting plate 51 is connected to a temperature sensor 52 for detecting the temperature of the laser connected thereto. The sample mounting plate 51 can move relative to the base 1 in the vertical direction and the first horizontal direction. The sample mounting plate 51 can rotate relative to the base 1 around the first axis and can be rotated until the positioning plane 511 is perpendicular to the first direction. The sample supporting mechanism 5 and the integrating sphere 2 are spaced apart in the first direction. The positioning plane 511 faces the incident window of the integrating sphere 2 when in the vertical state.

[0037] Reference Figure 1-2 Specifically, when setting up the integrating sphere 2, the sidewall where the incident window is located is vertical. This allows the laser to maintain a stable fit with the sidewall where the incident window is located when the positioning plane 511 is vertical. To facilitate installation of the laser on the sample mounting plate 51, the sample mounting plate 51 is provided with a threaded hole located on the positioning plane 511 for mounting the laser. When the laser is mounted on the sample mounting plate 51, its output laser is perpendicular to the positioning plane 511.

[0038] When testing the laser, the laser is mounted on the positioning plane 511 of the sample mounting plate 51, and the sample mounting plate 51 is rotated until the positioning plane 511 is vertical. At this time, the positioning plane 511 faces the incident window of the integrating sphere 2, that is, the laser faces the incident window of the integrating sphere 2. The height of the laser is adjusted by raising and lowering the sample mounting plate 51 so that it is consistent with the height of the laser's incident window. The sample mounting plate 51 is moved along the first direction close to the integrating sphere 2 to make the laser fit with the side wall where the incident window of the integrating sphere 2 is located, and the laser output is input into the integrating sphere 2, that is, the connection between the laser and the integrating sphere 2 is achieved. The connection between the laser and the integrating sphere 2 is easy to operate, and the laser can be connected to the laser power meter 3 and the spectrum analyzer 4 through optical fiber jumpers to realize the detection of the laser output power and the output laser spectrum. The operating temperature of the laser is detected by the temperature sensor 52 connected to the sample mounting plate 51. The entire detection work only requires installing the laser on the sample mounting plate 51, rotating and moving the sample mounting plate 51, and performing wiring operations. The entire detection process is simple to operate, effectively improving the efficiency of laser detection work.

[0039] Reference Figure 2-3 As shown, in order to realize the connection between the sample mounting plate 51 and the base 1, the sample support mechanism 5 also includes a connecting structure connecting the sample mounting plate 51 and the base 1, and the connecting structure includes a fixed support 53, a rotating connecting plate 54 and a driving mechanism. The fixed support 53 is connected to the base 1 and can move relative to the base 1 in the vertical direction and the first direction. The rotating connecting plate 54 is connected to the fixed support 53 and can rotate relative to the fixed support 53 around the first axis, and the sample mounting plate 51 is connected to the rotating connecting plate 54. The driving mechanism connects the fixed support 53 and the base 1 and is used to drive the fixed support 53 to move in the vertical direction and the first direction.

[0040] Reference Figure 2-3 As shown, in this embodiment, the first axis is set to be horizontal and parallel to the positioning plane 511, so that the sample mounting plate 51 can be rotated to the level of the positioning plane 511 to facilitate the installation operation of the laser on the sample mounting plate 51.

[0041] Reference Figure 2-3As shown, the fixed support 53 includes a horizontal base plate 531 and two vertical side plates 532. The two side plates 532 are parallel to each other and connected to the ends of the fixed support 53. The rotating connecting plate 54 is disposed between the two side plates 532 and is rotatably connected to the two side plates 532 via a rotating shaft coaxial with the first axis. Specifically, the rotating connecting plate 54 is arranged parallel to the positioning plane 511. Therefore, when the rotating connecting plate 54 rotates to the horizontal and vertical positions, the positioning plane 511 is respectively horizontal and vertical. In order to enable the rotatable connecting plate 54 to be maintained in both the horizontal and vertical states, so that the sample mounting plate 51 can be maintained with the positioning plane 511 vertical or the positioning plane 511 horizontal, a limit block 533 is connected to the side plate 532, so that when the rotatable connecting plate 54 rotates from the horizontal state to the vertical state, it abuts against the limit block 533 when rotating to the vertical state, thereby limiting the rotatable connecting plate 54 from continuing to rotate. At the same time, when the rotatable connecting plate 54 rotates from the vertical state to the horizontal state, it abuts against the limit block 533 when rotating to the horizontal state, similarly limiting the rotatable connecting plate 54 from continuing to rotate, thereby allowing the rotatable connecting plate 54 to be maintained in the vertical state or the horizontal state. Due to the limitation of the limit block 533, the rotatable connecting plate 54 cannot continue to rotate after rotating from the horizontal state to the vertical state, and can only rotate in the opposite direction from the vertical state to the horizontal state.

[0042] Reference Figure 2-3 As shown, in order to enable the temperature sensor 52 to accurately detect the operating temperature of the laser, the temperature sensor 52 is set to be connected to the side of the sample mounting plate 51 away from the positioning plane 511, and the temperature sensor 52 is directly in contact with the area on the sample mounting plate 51 for laser mounting, and the operating temperature of the laser is indirectly detected by detecting the temperature of the sample mounting plate 51.

[0043] Reference Figure 2-3 As shown, to prevent the laser from overheating during testing, a water cooling plate 55 is connected to the side of the sample mounting plate 51 away from the positioning plane 511. This cools the sample mounting plate 51 and the laser through the water cooling plate 55. Furthermore, an insulating block 56 connects the sample mounting plate 51 and the water cooling plate 55, insulating the laser under test from other structures and reducing safety risks.

[0044] Reference Figure 2-3 As shown, to achieve the functions of moving the sample mounting plate 51 in the first direction and vertically, the driving mechanism is configured to include a translation stage 57 and a lifting stage 58. The translation stage 57 is used to drive the fixed support 53 to move in the first direction, and the lifting stage 58 is used to drive the fixed support 53 to move in the vertical direction. Specifically, the lifting stage 58 is directly connected to the base 1, and the translation stage 57 is connected to the base of the lifting stage 58, and the corresponding fixed support 53 is fixed to the slide of the translation stage 57.

[0045] Reference Figure 1 As shown, further, the sample support mechanism 5 is configured to be movable relative to the base 1 along a horizontal second direction, the second direction being perpendicular to the first direction, and in the first direction, the laser power meter 3 and the sample support mechanism 5 are spaced apart, the spectrum analyzer 4 and the sample support mechanism 5 are spaced apart, and the integrating sphere 2, the laser power meter 3 and the spectrum analyzer 4 are spaced apart in the second direction.

[0046] Specifically, a guide rail 6 extending along the second direction is provided on the base 1, and a suitable slider is provided on the guide rail 6. A lifting platform 58 is mounted on the slider to enable the sample support mechanism 5 to move in the second direction, thereby enabling the sample mounting plate 51 and the laser thereon to move in the second direction. Furthermore, the integrating sphere 2, laser power meter 3, and spectrum analyzer 4 are arranged on the same side of the guide rail 6, so that the sample mounting plate 51 can be moved to a position where the laser power meter 3 is located in the output laser light path, or where the spectrum analyzer 4 is located in the output laser light path. This allows the laser power meter 3 to directly receive the output laser light and detect the laser's output power, and the spectrum analyzer 4 to directly receive the output laser light and detect its spectral characteristics, thereby improving the accuracy of the detection results.

[0047] The laser power meter 3, the beam quality analyzer, the temperature sensor 52 and the spectrum analyzer 4 are all connected to the data acquisition and processing module, and the detection data are processed by the data acquisition and processing module and displayed on the display.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An open pump laser detection device, characterized in that: include: Base (1); An integrating sphere (2), a beam quality analyzer, a laser power meter (3) and a spectrum analyzer (4) are arranged on the base (1), wherein the integrating sphere (2) is connected to the beam quality analyzer; A sample support mechanism (5) is provided on the base (1), the sample support mechanism (5) comprising a sample mounting plate (51) connected to the base (1), the sample mounting plate (51) comprising a positioning plane (511) for mounting a laser, the sample mounting plate (51) being connected to a temperature sensor (52) for detecting the temperature of the laser connected thereto, the sample mounting plate (51) being movable relative to the base (1) in a vertical direction and in a first horizontal direction, the sample mounting plate (51) being rotatable relative to the base (1) about a first axis and being rotatable until the positioning plane (511) is perpendicular to the first direction, the sample support mechanism (5) and the integrating sphere (2) being spaced apart in the first direction, and the positioning plane (511) being oriented toward an incident window of the integrating sphere (2) when in a vertical state.

2. The open pump laser detection device according to claim 1, characterized in that: The sample support mechanism (5) further comprises a connection structure connecting the sample mounting plate (51) and the base (1), wherein the connection structure comprises: a fixed support (53) connected to the base (1) and movable relative to the base (1) in a vertical direction and a first direction; a rotating connecting plate (54) connected to the fixed support (53) and rotatable relative to the fixed support (53) around a first axis, and the sample mounting plate (51) is connected to the rotating connecting plate (54); A driving mechanism connects the fixed support (53) and the base (1) and is used to drive the fixed support (53) to move in a vertical direction and a first direction.

3. The open pump laser detection device according to claim 2, characterized in that: A water cooling plate (55) is connected to a side of the sample mounting plate (51) away from the positioning plane (511).

4. The open pump laser detection device according to claim 3, characterized in that: The sample mounting plate (51) and the water cooling plate (55) are connected via an insulating block (56).

5. The open pump laser detection device according to claim 2, characterized in that: The driving mechanism comprises a translation platform (57) and a lifting platform (58), wherein the translation platform (57) is used to drive the fixed support (53) to move along a first direction, and the lifting platform (58) is used to drive the fixed support (53) to move along a vertical direction.

6. The open pump laser detection device according to claim 1, characterized in that: The sample support mechanism (5) is movable relative to the base (1) along a second horizontal direction, the second direction being perpendicular to the first direction. In the first direction, the laser power meter (3) and the sample support mechanism (5) are spaced apart, the spectrum analyzer (4) and the sample support mechanism (5) are spaced apart, and the integrating sphere (2), the laser power meter (3) and the spectrum analyzer (4) are spaced apart in the second direction.

7. The open pump laser detection device according to claim 1, characterized in that: The first axis is horizontal and parallel to the positioning plane (511).

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