A high-power semiconductor laser focusing output structure

A technology with output structure and high power, which is applied in the laser field, can solve the problems of difficult processing and unfavorable mass production, and achieve the effects of good stability, lower temperature and improved beam quality

Pending Publication Date: 2018-12-18
JIANGSU SKYERALASER TECH
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  • Abstract
  • Description
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Problems solved by technology

However, this method is difficult to process and is not conducive to mass production

Method used

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  • A high-power semiconductor laser focusing output structure
  • A high-power semiconductor laser focusing output structure
  • A high-power semiconductor laser focusing output structure

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Embodiment Construction

[0015] The implementation of the present application will be described in detail below with reference to the accompanying drawings and examples, so as to fully understand and implement the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects.

[0016] Depend on figure 1 It is known that it is the focus output structure in the embodiment of the present invention, including a focus lens 10, which is used to focus the superimposed spot formed after the laser light emitted by multiple laser chips is compressed by the fast and slow axes and deflected in the direction; the diaphragm 20 is placed in the focus lens 10 After the appropriate position, the diameter of the focused beam is controlled; the optical fiber output head 30 is placed at the focal point of the focusing lens 10 to receive the focused beam to realize optical fiber transmission of the laser.

[0017] The focusing lens 10 can be a single l...

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Abstract

A focusing output structure of a high-power semiconductor laser includes a focusing lens (10) for focusing a plurality of laser beam spots superposed after beam shaping; Characterized in that an aperture (20) is arranged behind the focusing lens (10) to control the diameter of the focused beam and the light transmission angle; An optical fiber output head (30) is arranged at the focal position ofthe focusing lens (10) to receive the focused light beam and realize the optical fiber transmission of the high-power laser. The invention adopts the diaphragm to optimize the spherical aberration ofthe focusing lens, the optical spot diameter and the light transmission angle at the output end of the optical fiber are limited initially, Effectively reduce the number of invalid light fiber outputhead, further reduce the temperature at the fiber output head, effectively improve the stability of the device, at the same time, the limiting effect of the aperture, can effectively improve the laserbeam quality of semiconductor laser output.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular relates to a focusing coupling structure for packaging high-power semiconductor lasers. Background technique [0002] Semiconductor lasers have the advantages of high electro-optical efficiency, small size, and long life, and are widely used in military, medical, communication, industrial processing and other fields, especially the development of special optical fiber drawing technology and laser crystal growth technology. Rare earth ions in optical fibers and laser crystals have the function of absorption and excitation, which makes semiconductor lasers have unique advantages in the application of pump sources for fiber laser and solid-state laser technology. In industrial processing applications, the requirements for laser output power levels are getting higher and higher. In recent years, fiber laser technology with kilowatt-level power levels has gradually matured, and semico...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/06H01S5/40
CPCH01S5/06H01S5/4012
Inventor 李军席道明陈云马永坤吕艳钊魏皓
Owner JIANGSU SKYERALASER TECH
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