Vcsel laser device testing device

Abstract

The utility model discloses a Vcsel laser device testing device, which comprises a supporting table mounted on a plane, a first hemisphere is fixedly mounted at the upper end of the supporting table, a second hemisphere is hinged to the right side of the front end of the first hemisphere through a hinge, and the left ends of the first hemisphere and the second hemisphere are connected and fixed through a fixing piece; a receiving probe is mounted at the rear end of the first hemisphere, a diffuse reflection plate is fixed in the first hemisphere, a dodging sheet is mounted in the front end of the second hemisphere, a positioning mechanism is mounted at the front end of the second hemisphere, and the positioning mechanism is used for fixing a Vcsel laser device on the second hemisphere. According to the Vcsel laser device testing device, by rotating the driving ring, the four positioning plates can move towards the direction of the Vcsel laser device at the same time, clamping and fixing are achieved, stability is improved, and a Vcsel light beam can be made to be aligned with a light beam inlet in the second hemisphere.

Description

Technical Field

[0001] The utility model relates to the technical field of Vcsel laser devices, in particular to a Vcsel laser device testing device. Background Art

[0002] Vcsel laser devices are called vertical cavity surface emitting lasers. They are semiconductor lasers that emit lasers perpendicular to the substrate surface. They are one of the main light sources in the field of optical fiber communication or optical sensing. Vcsel laser devices need to be tested to ensure quality, evaluate performance, control processes, troubleshoot, and evaluate reliability, so as to ensure the normal operation and performance of Vcsel laser devices in various applications.

[0003] In the prior art, in a patent application entitled "A Vcsel Laser Device Testing Device" with an authorization publication number of CN220854114U and an authorization publication date of 2024-04-26, the outer surfaces of the two sliding rods are sleeved with reset springs, the two reset springs are respectively fixedly connected to the two fixing plates, and the two reset springs are respectively fixedly connected to the two clamping plates. After the clamping plates move, the reset springs can be compressed to produce elastic deformation, and the Vcsel laser device is clamped between the two clamping plates to complete the limit fixation, so that the Vcsel beam irradiated by the Vcsel laser device is aligned with the beam entrance on the second hemisphere;

[0004] During the actual use of the above-mentioned device, the Vcsel laser device is clamped by two clamps to align the Vcsel beam with the beam entrance on the second hemisphere. However, this clamping method easily causes the Vcsel laser device to deviate up and down, and the clamping is achieved by the elasticity of the return spring, and the clamping stability is poor.

[0005] Therefore, we propose a Vcsel laser device testing device to solve the above problems. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model:

[0007] The purpose of the utility model is to provide a Vcsel laser device testing device to solve the current market problems raised by the above background technology.

[0008] 2. Technical solution:

[0009] To achieve the above object, the utility model provides the following technical solutions: a Vcsel laser device testing device, comprising a support platform installed on a plane, a first hemisphere is fixedly installed on the upper end of the support platform, a second hemisphere is hingedly connected to the front right side of the first hemisphere through a hinge, and the left ends of the first hemisphere and the second hemisphere are connected and fixed by a fixing piece;

[0010] A receiving probe is installed at the rear end of the first hemisphere, and a diffuse reflection plate is fixed inside the first hemisphere. A light homogenizer is installed inside the front end of the second hemisphere, and a positioning mechanism is installed at the front end of the second hemisphere. The positioning mechanism is used to fix the Vcsel laser device on the second hemisphere.

[0011] Furthermore, the front end of the first hemisphere and the rear end of the second hemisphere fit each other.

[0012] The above technical solution ensures that the light beam is fully diffusely reflected inside the integrating sphere, which consumes the intensity of the light beam without affecting other optical properties.

[0013] Furthermore, the positioning mechanism includes a fixed seat fixedly installed on the front end of the second hemisphere, the outer threaded sleeve of the fixed seat is provided with a driving ring, and a circular ring is rotatably installed at the front end of the driving ring, and four driving blocks are fixedly installed at equal angles at the front end of the circular ring, and a positioning piece is correspondingly arranged on the front side of each driving block.

[0014] Through the above technical solution, when the driving ring is rotated, the circular ring and the driving block can be driven to move.

[0015] Furthermore, a limiting groove cooperating with the limiting block is formed on the outer wall of the fixing seat, and the limiting block is fixedly mounted on the inner wall of the circular ring.

[0016] Through the above technical solution, the limiting block can be driven to squeeze toward the positioning piece.

[0017] Furthermore, the positioning member is composed of a guide rod and a positioning plate, the positioning plate is fixed to one end of the guide rod close to the center of the fixing seat, and a pressure spring is sleeved on the outer side of the guide rod, and the two ends of the pressure spring are respectively connected to the positioning plate and the fixing seat.

[0018] Through the above technical solution, the positioning plate is driven to reset under the action of the pressure spring.

[0019] Furthermore, a guide groove matching with the guide rod is provided inside the front end of the fixing seat, and the side of the upper end of the guide rod close to the ring is inclined, and the side of the guide rod is in contact with one side of the driving block.

[0020] Through the above technical solution, when the limit block is displaced, it can be pressed toward the guide rod to drive the guide rod to be displaced.

[0021] 3. Beneficial effects:

[0022] By adopting the technical solution provided by the utility model, compared with the prior art, the utility model Vcsel laser device testing device can simultaneously move the four positioning plates toward the direction of the Vcsel laser by rotating the driving ring, thereby achieving clamping and fixing, improving stability, and aligning the Vcsel beam with the beam entrance on the second hemisphere. The specific contents are as follows:

[0023] The Vcsel laser device is placed on the light homogenizer, and then the driving ring is rotated. The driving ring is connected by the thread of the fixing seat to move outside the fixing seat. The circular ring installed at the end of the driving ring can move with the movement of the driving ring instead of rotating with the fitting effect of the limit block and the limit groove. The circular ring can drive the driving block to squeeze the guide rod. The guide rod is driven by force to drive the positioning plate to move in the direction of the Vcsel laser until the positioning plate fits on the outside of the Vcsel laser. The driving ring is stopped to achieve the fixing operation of the Vcsel laser. Due to the self-locking property of the thread, the fixing stability of the Vcsel laser is improved, and there are four positioning pieces distributed at equal angles. Under the action of the four positioning pieces, the Vcsel laser can align the Vcsel beam with the beam entrance on the second hemisphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall side-view stereoscopic structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the overall side-section three-dimensional structure of the utility model;

[0026] Figure 3 This is a side view of the stereoscopic structure of the positioning mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing seat of the utility model from a side view;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the drive ring of the utility model from a side view.

[0029] In the figure: 1. support table; 2. first hemisphere; 3. second hemisphere; 4. fixing part; 5. receiving probe; 6. diffuse reflection plate; 7. homogenizing plate; 8. positioning mechanism; 81. fixing seat; 811. limiting groove; 812. guide groove; 82. driving ring; 83. circular ring; 831. limiting block; 84. driving block; 85. positioning part; 851. guide rod; 852. positioning plate; 853. pressure spring. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0034] See also Figure 1-5, a Vcsel laser device testing device, comprising a support platform 1 installed on a plane, a first hemisphere 2 is fixedly installed on the upper end of the support platform 1, and a second hemisphere 3 is hinged to the right side of the front end of the first hemisphere 2 through a hinge, and the left ends of the first hemisphere 2 and the second hemisphere 3 are connected and fixed by a fixing member 4; a receiving probe 5 is installed at the rear end of the first hemisphere 2, and a diffuse reflection plate 6 is fixed inside the first hemisphere 2, a light homogenizer 7 is installed inside the front end of the second hemisphere 3, and a positioning mechanism 8 is installed at the front end of the second hemisphere 3, and the positioning mechanism 8 is used to fix the Vcsel laser device on the second hemisphere 3; the front end of the first hemisphere 2 and the rear end surface of the second hemisphere 3 are in contact with each other, and the inner walls of the first hemisphere 2 and the second hemisphere 3 are coated with a diffuse reflection coating;

[0035] Combination Figure 1-2 As shown, when the Vcsel laser device is detected and analyzed, the Vcsel light beam irradiated by the Vcsel laser device can be evenly irradiated to the inside of the integrating sphere and reciprocated inside the integrating sphere through the light homogenizer 7, the diffuse reflection plate 6, and the first hemisphere 2 and the second hemisphere 3 coated with a diffuse reflection layer, so as to effectively adjust the light shape of the Vcsel light beam, process the incident angle error, reduce the test error, and improve the accuracy of the test result;

[0036] The positioning mechanism 8 includes a fixed seat 81 fixedly mounted on the front end of the second hemisphere 3, a driving ring 82 is provided on the outer thread sleeve of the fixed seat 81, and a circular ring 83 is rotatably mounted on the front end of the driving ring 82, and four driving blocks 84 are fixedly mounted at equal angles on the front end of the circular ring 83, and a positioning member 85 is correspondingly arranged on the front side of each driving block 84; a limiting groove 811 matching with the limiting block 831 is opened on the outer wall of the fixed seat 81, and the limiting block 831 is fixedly mounted on the inner wall of the circular ring 83; the positioning member 85 is guided by a guide The guide rod 851 is composed of a rod 851 and a positioning plate 852, the positioning plate 852 is fixed to one end of the guide rod 851 close to the center of the fixing seat 81, and a pressure spring 853 is sleeved on the outer side of the guide rod 851, and the two ends of the pressure spring 853 are respectively connected to the positioning plate 852 and the fixing seat 81; a guide groove 812 matching with the guide rod 851 is opened inside the front end of the fixing seat 81, and the side of the upper end of the guide rod 851 close to the ring 83 is inclined, and the side of the guide rod 851 is in contact with one side of the driving block 84;

[0037] Combination Figure 2-5As shown, the Vcsel laser device is placed at the light homogenizer 7, and then the drive ring 82 is rotated. The drive ring 82 is connected by the thread of the fixed seat 81 to move outside the fixed seat 81. The circular ring 83 installed at the end of the drive ring 82 can move with the movement of the drive ring 82 instead of rotating with the rotation of the drive ring 82 by the fitting effect of the limit block 831 and the limit groove 811. The circular ring 83 can drive the drive block 84 to squeeze the guide rod 851. The guide rod 851 is forced to drive the positioning plate 852 to move in the direction of the Vcsel laser until the positioning plate 852 fits on the outside of the Vcsel laser. The rotation of the drive ring 82 is stopped to achieve the fixing operation of the Vcsel laser. Due to the self-locking property of the thread, the fixing stability of the Vcsel laser is improved, and there are four positioning members 85 distributed at equal angles. Under the action of the four positioning members 85, the Vcsel laser can align the Vcsel beam with the beam entrance on the second hemisphere 3.

[0038] Working principle: When using the Vcsel laser device test device, Figure 1-5 As shown, firstly, the Vcsel laser device is placed at the homogenizer 7, and then the drive ring 82 is rotated. The drive ring 82 utilizes the threaded connection of the fixing seat 81, and the fitting action of the limit block 831 and the limit groove 811. The drive block 84 can be squeezed toward the guide rod 851, driving the positioning plate 852 to fit the outside of the Vcsel laser, and then the rotation of the drive ring 82 is stopped to achieve the fixing operation of the Vcsel laser. Due to the self-locking property of the thread, the fixing stability of the Vcsel laser is improved, and under the action of the four positioning members 85, the Vcsel laser can align the Vcsel beam with the beam entrance on the second hemisphere 3. Subsequently, through the homogenizer 7, the diffuse reflection plate 6, and the first hemisphere 2 and the second hemisphere 3 coated with a diffuse reflection layer, the light shape of the Vcsel beam is effectively adjusted, the incident angle error is processed, the test error is reduced, and the accuracy of the test result is improved.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A Vcsel laser device testing device, characterized in that: It comprises a support platform (1) installed on a plane, a first hemisphere (2) being fixedly installed on the upper end of the support platform (1), a second hemisphere (3) being hingedly connected to the front right side of the first hemisphere (2) via a hinge, and the left ends of the first hemisphere (2) and the second hemisphere (3) being connected and fixed via a fixing member (4); A receiving probe (5) is installed at the rear end of the first hemisphere (2), and a diffuse reflection plate (6) is fixed inside the first hemisphere (2); a light homogenizer (7) is installed inside the front end of the second hemisphere (3), and a positioning mechanism (8) is installed at the front end of the second hemisphere (3); the positioning mechanism (8) is used to fix the Vcsel laser device on the second hemisphere (3); The positioning mechanism (8) comprises a fixing seat (81) fixedly mounted on the front end of the second hemisphere (3); a driving ring (82) is provided on the outer thread sleeve of the fixing seat (81); a circular ring (83) is rotatably mounted on the front end of the driving ring (82); four driving blocks (84) are fixedly mounted at the front end of the circular ring (83) at equal angles; and a positioning member (85) is correspondingly provided on the front side of each driving block (84); The outer wall of the fixing seat (81) is provided with a limiting groove (811) that matches the limiting block (831), and the limiting block (831) is fixedly mounted on the inner wall of the circular ring (83); The positioning member (85) is composed of a guide rod (851) and a positioning plate (852); the positioning plate (852) is fixed to one end of the guide rod (851) close to the center of the fixing seat (81); a pressure spring (853) is sleeved on the outer side of the guide rod (851); and two ends of the pressure spring (853) are respectively connected to the positioning plate (852) and the fixing seat (81).

2. A Vcsel laser device testing device according to claim 1, characterized in that: The front end of the first hemisphere (2) and the rear end of the second hemisphere (3) are in contact with each other, and the inner walls of the first hemisphere (2) and the second hemisphere (3) are coated with a diffuse reflection coating.

3. A Vcsel laser device testing device according to claim 1, characterized in that: A guide groove (812) matching with the guide rod (851) is provided inside the front end of the fixing seat (81), and the side of the upper end of the guide rod (851) close to the ring (83) is inclined, and the side of the guide rod (851) is in contact with one side of the driving block (84).

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