Novel high-power strip laser system

A slab laser, high-power technology, applied in the field of laser material surface treatment, laser radar and photoelectric countermeasures, laser processing, can solve the problems that affect the quality of laser output beam, unfavorable high-power amplification system, laser output non-uniformity, etc. Achieve the effects of improving the quality of the output beam, increasing the energy of light amplification, and avoiding the effect of thermally induced birefringence

Inactive Publication Date: 2009-04-01
JIANGSU UNIV
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Problems solved by technology

At present, the concentrating cavity is mainly made of glass or metal, but such a concentrating cavity has inhomogeneity in pumping, coupled with the high thermal effect caused by the large injection, it will cause serious thermal dis

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  • Novel high-power strip laser system

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Embodiment Construction

[0017] Combine below figure 1 The details and operation of the laser system proposed by the present invention are described in detail.

[0018] The invention mainly includes a laser cavity and an interstage beam expander compensation mirror, wherein the laser cavity is composed of a laser oscillator C 1 , pre-amplifier C 2 and main amplifier C 3 Consisting of three parts, the laser oscillator C 1 In the tightly hugging ceramic diffuse reflection cavity, place two parallel neodymium glass laser dielectric slabs PA with the same size, material and performance 01 and PA 02 , Slatted PA 01 and PA 02 The pumping source P composed of a large xenon lamp is placed in parallel on the outside 1 , in neodymium glass laser dielectric slab pa 01 and PA 02 One end is equipped with three total reflection mirrors M 2 , M 3 , M 4 A three-mirror retroreflective system composed of the first neodymium glass laser dielectric slab PA 01 The other end is provided with a total reflection...

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Abstract

The invention relates to a novel high power slab laser system. The high power slab laser system comprises a laser cavity and an interstage beam expanding compensation lens; the laser cavity is composed of a laser oscillator C1, a preamplifier C2 and a main amplifier C3, two neodymium glass laser medium slabs which are parallel with each other and have the same size, material and property are respectively put into an embraced ceramic diffuse reflection cavity composed of the laser oscillator, the preamplifier and the main amplifier, both pumping and cooling use a mirror symmetry mode, and a laser beam goes into the other neodymium glass slab through three refractions; and an interstage beam expanding compensation lens is arranged among the laser oscillator, the preamplifier and the main amplifier. The high power slab laser system has the advantages of improving the output laser beam quality, obtaining high power laser beam, having long service life of a xenon lamp and improving the beam quality of the laser beam.

Description

technical field [0001] The present invention relates to the fields of laser processing, laser material surface treatment, laser radar and photoelectric countermeasures, and particularly refers to a new type of high-power (gigawatt-level) slab laser system, especially suitable for laser systems that meet the following operating conditions: high High quality beam with repetition rate, high power, long xenon lamp life, low amplification spontaneous emission (ASE), weak wavefront distortion. Background technique [0002] With the continuous development of laser technology, high-power lasers have been more and more widely used due to their advantages such as high efficiency, long life, small size, and convenient use and maintenance. In civil, military, and space communications, factors such as repetition rate, pulse width, and beam quality of high-power solid-state lasers will directly affect the accuracy and efficiency of processing. In the design of solid-state lasers, thermal...

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Application Information

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IPC IPC(8): H01S3/00H01S3/17H01S3/06H01S3/08H01S3/09H01S3/042
Inventor 姚红兵张永康李国杰叶霞
Owner JIANGSU UNIV
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