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Multi-pass amplifying system for high-power laser separation chirp pulses

A chirped pulse and amplification system technology, which is applied in the field of high-power laser separation chirped pulse multi-pass amplification system, can solve problems such as insufficient power amplification capability, and achieve the effect of improving pulse amplification efficiency

Active Publication Date: 2014-07-16
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the existing CPA system, the power amplification capability of the existing DPA related system is still insufficient

Method used

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  • Multi-pass amplifying system for high-power laser separation chirp pulses
  • Multi-pass amplifying system for high-power laser separation chirp pulses
  • Multi-pass amplifying system for high-power laser separation chirp pulses

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Embodiment Construction

[0018] The present invention will be further described below through examples and accompanying drawings, but the protection scope of the present invention should not be limited by this.

[0019] see first figure 1 , figure 1It is a schematic structural diagram of the high-power laser separation chirped pulse multi-pass amplification system of the present invention. As can be seen from the figure, the high-power laser separation chirped pulse multi-pass amplification system of the present invention is composed of a laser seed pulse source 1, a pulse stretcher 2, a DPA regeneration cavity 3, a double-pass DPA module 4 and a pulse compressor 5. The pulse source 1 outputs the seed pulse, which is broadened into a chirped pulse by the pulse stretcher 2, and then the power is amplified by the DPA regeneration cavity 3 and the double-pass DPA module 4, and finally the amplified chirped pulse is processed by the pulse compressor 5. compression. The pulse stretcher 2 and the pulse c...

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Abstract

A multi-pass amplifying system for high-power laser separation chirp pulses is composed of a laser seed pulse source, a pulse stretcher, a DPA regeneration cavity, bi-pass DPA modules and a pulse compressor. Seed pulses are output by the laser seed pulse source and first stretched into the chirp pulses through the pulse stretcher, then the power of the chirp pulses is amplified through the DPA regeneration cavity and the bi-pass DPA modules, and finally the amplified chirp pulses are compressed through the pulse compressor. The multiple levels of DPA modules are connected in series in a CPA module, and the DPA modules have the function of multi-pass pulse amplifying, so that the pulse power amplifying capacity of the multi-pass amplifying system is improved, and the influence of the nonlinear effect is effectively restrained.

Description

technical field [0001] The invention relates to a high-power laser pulse amplification technology, in particular to a high-power laser separation chirped pulse multi-pass amplification system. Background technique [0002] In 1960, Maiman of Hughes Laboratory in the United States invented the ruby ​​pulse laser. Pumped by millisecond-level optical pulses, the ruby ​​laser outputs a microsecond-level spike train with a peak power of the kW order. Subsequently, Q-switching technology and mode-locking technology developed rapidly, and the peak power of laser pulses could reach GW (10 9 W) magnitude. When the laser power continues to be increased, the nonlinear effects such as self-focusing of the beam intensify, eventually leading to damage to the optical medium. In 1985, D. Strickland and G. Mourou of the University of Rochester in the United States solved the above problems by applying chirped pulse amplification (CPA) technology. The seed pulse is first stretched into a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/23H01S3/11H01S3/08G02F1/39
Inventor 张宗昕冷雨欣陆效明邹晓
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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