Miniature RGB fiber laser

Abstract

The utility model provides a miniature RGB fiber laser, which comprises a shell body, a thermistor and a plurality of red, green and blue lasers are arranged in the shell body, the thermistor is used for monitoring the working temperature inside the miniature RGB fiber laser, a plurality of electrodes are arranged on the side wall of the shell body, the electrodes are connected with the shell body through glass terminals, and the red, green and blue lasers are arranged in the shell body. The electrode is in bonding connection with the thermistor and the red-green-blue laser through gold wires; the working temperature of the laser is controlled with high precision, the performance of the laser is improved, the power supply mode of the laser is miniaturized, the size and the weight of the laser are reduced, and the reliability and the stability of laser connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber laser processing, in particular to a micro RGB optical fiber laser. Background Art

[0002] With the rapid development of fiber-optic communications, optoelectronics, and laser technologies, micro-RGB fiber lasers, due to their small size, light weight, low power consumption, and high beam quality, have shown broad application prospects in a variety of fields, including optical communications, optical sensing, medical laser equipment, optical displays, and scientific research experiments. However, existing micro-RGB fiber lasers still face a series of technical challenges in their design and manufacturing.

[0003] First, ensuring laser stability and reliability is a key issue during the miniaturization of lasers. Due to the size limitations of micro-lasers, the layout and connection of their internal components become particularly complex, increasing manufacturing difficulty and cost. Furthermore, miniaturization can exacerbate heat dissipation issues, which in turn affects the performance and lifespan of the laser.

[0004] Secondly, for the power supply and control of RGB lasers, traditional connection methods often use complex circuit boards and connecting cables. This not only increases the size and weight of the laser, but also may introduce additional noise and interference, affecting the laser output quality. In addition, traditional power supply methods also face challenges in connection reliability and stability during the miniaturization process.

[0005] Furthermore, monitoring the internal operating temperature of the laser is also an important task. Since the laser generates a lot of heat during operation, if the temperature is too high, it may cause the laser performance to degrade or even be damaged. Utility Model Content

[0006] In order to solve the challenges of connection reliability and stability faced by traditional power supply methods during the miniaturization process, and the technical problems that the laser generates a large amount of heat during operation, if the temperature is too high, it may cause the laser performance to degrade or even be damaged, the utility model proposes a miniature RGB fiber laser, which not only monitors the internal operating temperature of the laser with high precision and improves the performance of the laser; but also meets the miniaturization of the laser power supply method, reduces the volume and weight of the laser, and improves the reliability and stability of the laser connection.

[0007] In order to achieve the above object, the technical solution of the utility model is as follows:

[0008] The utility model provides a miniature RGB fiber laser, comprising: a shell body, wherein a thermistor and a plurality of red, green and blue lasers are arranged inside the shell body, wherein the thermistor is used to monitor the internal working temperature of the miniature RGB fiber laser, and a plurality of electrodes are provided on the side wall of the shell body, wherein the electrodes are connected to the shell body through glass terminals, and the electrodes are bonded to the thermistor and the red, green and blue lasers through gold wires.

[0009] The utility model proposes a miniature RGB fiber laser, which not only monitors the internal operating temperature of the laser with high precision and improves the performance of the laser, but also meets the miniaturization of the laser power supply mode, reduces the volume and weight of the laser, and improves the reliability and stability of the laser connection.

[0010] As a preferred technical solution, a first ceramic piece is provided in the shell body, a plurality of collimating lenses are provided on the first ceramic piece, and the collimating lenses are connected to the first ceramic piece.

[0011] As a preferred technical solution, in the y-axis direction of the shell body, each of the red, green and blue lasers is arranged corresponding to each of the collimating lenses.

[0012] As a preferred technical solution, a second ceramic piece is provided in the shell body, a plurality of dichroic mirrors are provided on the second ceramic piece, and the dichroic mirrors are connected to the second ceramic piece.

[0013] As a preferred technical solution, in the y-axis direction of the shell body, each collimating lens is arranged corresponding to each dichroic mirror.

[0014] As a preferred technical solution, in the x-axis direction of the shell body, the dichroic mirror and the focusing mirror are arranged correspondingly.

[0015] As an optimal technical solution, the dichroic mirror is arranged at an angle of ≥45° in the x-axis direction of the shell body; a red light reflecting dichroic mirror, a green light reflecting dichroic mirror and a blue light reflecting dichroic mirror are arranged in sequence towards the focusing mirror.

[0016] As a preferred technical solution, the focusing mirror is arranged corresponding to one end of the LC ferrule plane, and the other end of the LC ferrule plane passes through the shell body and is connected to the optical fiber.

[0017] As a preferred technical solution, the portion of the other end of the LC ferrule plane that passes through the shell body is connected to the shell body through an official cap.

[0018] As a preferred technical solution, it includes: a protective sleeve, which is arranged on the part of the other end of the LC core plane that passes through the shell body, the official cap and part of the optical fiber.

[0019] The utility model provides a miniature RGB fiber laser with the following beneficial effects:

[0020] 1) It not only monitors the internal working temperature of the laser with high precision and improves the performance of the laser, but also meets the miniaturization of the laser power supply mode, reduces the volume and weight of the laser, and improves the reliability and stability of the laser connection;

[0021] 2) By placing the electrodes directly on the side walls of the shell and connecting them with glass terminals, significant space savings can be achieved, making the overall layout of the laser more compact. This compact layout helps reduce the size of the laser, making it more suitable for miniaturized and integrated applications.

[0022] As a bridge connecting the electrode and the shell body, the glass terminal not only has excellent electrical insulation performance and chemical stability, but also can reduce the connection parts (such as wires, connectors, etc.) required in traditional connection methods; this further reduces the weight of the laser and simplifies its structure;

[0023] Glass terminals have good sealing performance and high temperature resistance, which can effectively prevent moisture, dust and other impurities in the external environment from entering the laser, thereby protecting the internal electrical connections from damage; this helps to improve the reliability of the laser connection and extend its service life;

[0024] The electrodes form a stable electrical connection with the conductive layer inside the shell body through the glass terminals. This connection method has low contact resistance and high stability.

[0025] The thermistor is used to monitor the operating temperature inside the laser, monitors the operating temperature inside the laser with high precision, and improves the performance of the laser. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front and side view of a miniature RGB fiber laser provided by the utility model;

[0027] Figure 2 A top view of a miniature RGB fiber laser provided by the utility model;

[0028] Figure 3 This is an exploded view of a micro RGB fiber laser provided by the utility model;

[0029] Among them, 1-shell body; 2-red, green and blue lasers; 3-thermistor; 4-electrode; 5-first ceramic part; 6-collimating lens; 7-second ceramic part; 8-dichroic mirror; 81-dichroic mirror for red light reflection; 82-dichroic mirror for green light reflection; 83-dichroic mirror for blue light reflection; 9-focusing mirror; 10-glass terminal; 11-LC core plane; 12-official cap; 13-protective cover; 14-optical fiber. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] It should be noted that the terms "first" and "second" and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0032] like Figure 1-3 As shown, a miniature RGB fiber laser comprises: a shell body 1, wherein a thermistor 3 and a plurality of red, green and blue lasers 2 are provided in the shell body 1, wherein the thermistor 3 is used to monitor the internal working temperature of the miniature RGB fiber laser; a plurality of electrodes 4 are provided on the side wall of the shell body 1, wherein the electrodes 4 are connected to the shell body 1 via glass terminals 10, and the electrodes 4 are bonded to the thermistor 3 and the red, green and blue lasers 2 via gold wires.

[0033] The utility model proposes a miniature RGB fiber laser, which not only monitors the internal operating temperature of the laser with high precision and improves the performance of the laser, but also meets the miniaturization of the laser power supply mode, reduces the volume and weight of the laser, and improves the reliability and stability of the laser connection.

[0034] The shell body 1 and the electrode 4 are preferably made of metal. The glass terminal 10 isolates the metal electrode 4 from the metal shell body 1 to play an insulating role.

[0035] The gold wire acts as a bridge between the electrode 4 and the thermistor 3 and the red, green and blue laser 2, ensuring electrical connection between them; connection via the gold wire simplifies the overall structure; this not only reduces manufacturing costs, but also improves the reliability and stability of the connection.

[0036] Preferably, a first ceramic piece 5 is provided in the shell body 1, and a plurality of collimating lenses 6 are provided on the first ceramic piece 5, and the collimating lenses 6 are connected to the first ceramic piece 5;

[0037] The main function of the collimating lens 6 is to collimate the laser, that is, to convert the divergent laser beam into parallel light or nearly parallel light; this helps to ensure that the laser beam maintains a stable shape and direction during transmission, thereby improving the output quality and efficiency of the laser; through the action of the collimating lens 6, the divergence angle of the laser beam is reduced, and the coherence and directionality of the beam are improved; this enables the laser beam to have a better focusing effect and higher energy density in applications;

[0038] The first ceramic member 5 serves as a supporting structure and has high strength and good thermal stability; it can effectively support the multiple collimating lenses 6, ensuring that they maintain a stable position during operation;

[0039] Ceramic materials have good thermal conductivity and can effectively transfer the heat generated by the laser to the surrounding environment; this helps to reduce the operating temperature of the laser, improve its thermal management performance, and thus extend its service life.

[0040] Preferably, in the y-axis direction of the shell body 1, each of the red, green and blue lasers 2 is arranged corresponding to each of the collimating lenses 6; arranging the red, green and blue lasers 2 and the collimating lenses 6 correspondingly can reduce beam interference between different lasers; this helps to ensure that the output beam of each laser remains independent and stable, thereby improving the stability of the entire system.

[0041] Preferably, a second ceramic member 7 is provided within the shell body 1, and a plurality of dichroic mirrors 8 are provided on the second ceramic member 7. The dichroic mirrors 8 are connected to the second ceramic member 7. In the y-axis direction of the shell body 1, each collimating lens 6 is arranged corresponding to each dichroic mirror 8, which can effectively reduce the structure of the device and realize a multifunctional optical path. The main function of the dichroic mirror 8 is to separate the light beam into transmitted light and reflected light according to the wavelength. In this design, the collimated light beam output by each collimating lens 6 will pass through the corresponding dichroic mirror 8, thereby realizing spectral separation, having the advantages of high transmittance, accurate wavelength positioning, and low light energy loss.

[0042] The second ceramic part 7 serves as a supporting structure with high strength and good thermal stability. It can effectively support multiple dichroic mirrors 8, ensuring that they maintain a stable position during operation. The ceramic material has good thermal conductivity and can effectively transfer the heat generated by the laser to the surrounding environment. This helps to reduce the operating temperature of the laser, improve its thermal management performance, and thus extend its service life.

[0043] Preferably, in the x-axis direction of the shell body 1, the dichroic mirror 8 and the focusing mirror 9 are arranged correspondingly; when the dichroic mirror 8 and the focusing mirror 9 are arranged correspondingly, it can ensure that the light beam of a specific wavelength is accurately guided to the focusing mirror 9, thereby realizing the combination of multi-color light beams.

[0044] Preferably, the dichroic mirror 8 is tilted at an angle of ≥45° along the x-axis of the housing. A red-light-reflecting dichroic mirror 81, a green-light-reflecting dichroic mirror 82, and a blue-light-reflecting dichroic mirror 83 are sequentially arranged toward the focusing mirror 9. Each color of laser light (red, green, and blue) is reflected by the corresponding dichroic mirror, while light of other colors is transmitted. This ensures that only light of the desired wavelength is received by the focusing mirror, thereby improving the optical performance of the system.

[0045] Setting the dichroic mirror 8 to an angle of ≥45° can ensure that the light beam is incident on the mirror surface at an appropriate angle, thereby achieving the best reflection effect; by precisely matching the position and angle of each dichroic mirror 8 and focusing mirror 9, it can be ensured that the light beam maintains the best focusing state during transmission; this helps to improve the focusing precision and accuracy of the system, thereby optimizing image quality and color performance.

[0046] Preferably, the focusing lens 9 is arranged corresponding to one end of the LC ferrule plane 11, and the other end of the LC ferrule plane 11 passes through the shell body 1 and is connected to the optical fiber 14;

[0047] The main function of the focusing mirror 9 is to focus the optical signals from different directions or different paths onto one point. The focusing mirror 9 ensures that the optical signals of a specific wavelength, after being separated and reflected by the dichroic mirror 8, can be efficiently focused.

[0048] The other end of the LC ferrule plane 11 passes through the shell body 1 and is directly connected to the optical fiber 14; this design realizes the seamless transmission of the optical signal from the optical component to the optical fiber, reduces the loss and interference of the optical signal, and at the same time, the laser transmitted through the optical fiber has good spot quality and good imaging effect.

[0049] Preferably, the other end of the LC ferrule plane 11 passing through the shell body 1 is connected to the shell body 1 through an official cap 12 , which has a simple structure, is easy to operate, and plays a protective and fixing role.

[0050] Preferably, it includes: a mirror protection 13, which is arranged on the part of the other end of the LC core plane 11 that passes through the shell body 1, the official cap 12 and part of the optical fiber 14. It has a simple structure, is easy to operate, and plays a protective and fixing role.

[0051] When the micro RGB fiber laser of the present application is working, the red, green and blue lasers 2 output lasers of different colors, red, green and blue. Each red, green and blue laser 2 outputs lasers of any one color, red, green and blue. Then, the laser is collimated by the collimating lens 6 to ensure that the transmission direction of the laser is consistent. Then, the lasers of different colors are combined by the dichroic mirror 8, and the combined lasers are focused onto the LC core plane 11 by the focusing lens 9. Finally, the laser passes through the shell body 1 at one end of the LC core plane 11 and is connected to the optical fiber 14 to realize the output of the laser, with good light spot quality and good imaging effect.

[0052] It will be understood that the present invention is described through some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the guidance of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all changes or equivalent substitutions may be made within the scope of the claims of this application. In addition, under the guidance of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope protected by the present invention.

Claims

1. A micro RGB fiber laser, characterized in that: include: A shell body is provided with a thermistor and multiple red, green and blue lasers. The thermistor is used to monitor the operating temperature inside the micro RGB fiber laser. Multiple electrodes are provided on the side wall of the shell body. The electrodes are connected to the shell body through glass terminals. The electrodes are bonded to the thermistor and the red, green and blue lasers through gold wires.

2. The micro RGB fiber laser according to claim 1, characterized in that: A first ceramic piece is provided in the shell body, a plurality of collimating lenses are provided on the first ceramic piece, and the collimating lenses are connected to the first ceramic piece.

3. The micro RGB fiber laser according to claim 2, characterized in that: In the y-axis direction of the shell body, each of the red, green and blue lasers is arranged corresponding to each of the collimating lenses.

4. The micro RGB fiber laser according to claim 3, characterized in that: A second ceramic piece is provided in the shell body, a plurality of dichroic mirrors are provided on the second ceramic piece, and the dichroic mirrors are connected to the second ceramic piece.

5. The micro RGB fiber laser according to claim 4, characterized in that: In the y-axis direction of the housing body, each collimating lens is arranged corresponding to each dichroic mirror.

6. The micro RGB fiber laser according to claim 5, characterized in that: In the x-axis direction of the shell body, the dichroic mirror and the focusing mirror are arranged correspondingly.

7. The micro RGB fiber laser according to claim 6, characterized in that: The dichroic mirror is arranged at an angle of ≥45° in the x-axis direction of the shell body; a red light reflecting dichroic mirror, a green light reflecting dichroic mirror and a blue light reflecting dichroic mirror are arranged in sequence towards the focusing mirror.

8. The micro RGB fiber laser according to claim 6, characterized in that: The focusing lens is arranged corresponding to one end of the LC ferrule plane, and the other end of the LC ferrule plane passes through the shell body and is connected to the optical fiber.

9. The micro RGB fiber laser according to claim 8, characterized in that: The other end of the LC ferrule plane passes through the shell body and is connected to the shell body through an official cap.

10. The micro RGB fiber laser according to claim 9, characterized in that: include: The protective sleeve is arranged on the portion of the other end of the LC ferrule plane that passes through the shell body, the official cap and a portion of the optical fiber.

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