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High Power Laser Separation Chirped Pulse Multipass Amplification System

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: 2017-01-25
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • 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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  • High Power Laser Separation Chirped Pulse Multipass Amplification System
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  • High Power Laser Separation Chirped Pulse Multipass Amplification System

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Embodiment Construction

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

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

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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. Under the pumping of millisecond-level light pulses, the ruby ​​laser outputs a spike sequence of microsecond level, and its peak power is on the order of kW. 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 increase, nonlinear effects such as beam self-focusing will intensify, which will eventually lead 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 well by using chirped pulse amplification (CPA) technology. The seed pulse is ...

Claims

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Application Information

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Patent Type & Authority Patents(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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