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Kilowatt-level high power pulse Nd:YAG (neodymium-neodymium aluminum garnet) laser with one-level resonance and two-level amplification

A YAG laser, high-power technology, applied in the field of lasers, can solve the problem of insufficient beam quality and achieve significant economic and social benefits, stable power, and high beam quality.

Inactive Publication Date: 2012-02-15
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology

The above two domestically developed solid-state lasers cannot be coupled into the optical fiber because the beam quality is not high enough, and can only be transmitted through a hard optical path, so they can only be used in the laboratory

Method used

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  • Kilowatt-level high power pulse Nd:YAG (neodymium-neodymium aluminum garnet) laser with one-level resonance and two-level amplification
  • Kilowatt-level high power pulse Nd:YAG (neodymium-neodymium aluminum garnet) laser with one-level resonance and two-level amplification

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 The structure shown is a kilowatt-level high-power pulsed Nd:YAG laser with one-stage resonance and two-stage amplification according to Embodiment 1 of the present invention. It adopts a three-stage MOPA system structure with one-stage resonance and two-stage amplification and an optical fiber flexible output mode. It includes a laser collimation system 2, a resonant stage 4, a primary amplifier stage 5, a secondary amplifier stage 6 and a flexible output system respectively installed on the base 1, and the primary amplifier stage 5 is located on the centerline of the output end of the resonant stage 4 Above; the secondary amplification stage 6 is located on one side of the primary amplification stage 5, and is parallel to the primary amplification stage 5; the flexible output system is located at the output end of the ...

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Abstract

The invention discloses a kilowatt-level high power pulse Nd:YAG (neodymium-neodymium aluminum garnet) laser with one-level resonance and two-level amplification. An MOPA (master oscillator power amplifier) system structure with the one-level resonance and two-level amplification and an optical flexible output way are adopted, and the laser concretely comprises a laser alignment system, a resonance level, a one-level amplification stage, a two-level amplification stage and a flexible output system which are arranged on a base, wherein the one-level amplification stage is arranged on the central line of an output end of the resonance level; the two-level amplification stage is arranged at one side of the one-level amplification stage, and parallel to the one-level amplification stage; the flexible output system is arranged on an output end of the two-level amplification stage; and the laser alignment system is arranged on the central line of an input end of the resonance level. The laser has the advantages of high beam quality, stable power, availability of flexible output and the like, can meet demands of high-power industrial production and flexible processing, and has obvious economic benefits and social benefits.

Description

technical field [0001] The invention relates to a solid-state laser, in particular to an industrial kilowatt-level high-power pulse Nd:YAG laser, which belongs to the field of lasers. Background technique [0002] Lasers currently used in industrial processing are mainly CO 2 Lasers and solid-state Nd:YAG lasers, solid-state Nd:YAG lasers have large output energy, high peak power, compact device structure, easy fiber coupling, and better performance than CO 2 Gas lasers have the advantages of short wavelength, long service life and mature unit technology, and have been widely used in industrial laser material processing, laser medicine, laser chemistry, scientific research and development, and national defense and military, forming a broad world solid-state laser market. [0003] However, my country's industrialized solid-state lasers above kilowatts all rely on imports, which greatly restricts the development of my country's advanced manufacturing industry. At present, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/13H01S3/23
Inventor 张庆茂张健郭亮
Owner SOUTH CHINA NORMAL UNIVERSITY
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