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Proceedings Paper • new

Multipass stretcher for chirped-pulse amplification
Author(s): Hongpeng Su; Yujie Peng; Xinlin Lv; Junchi Chen; Yanyan Li; Pengfei Wang; Beijie Shao; Yuxin Leng
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Paper Abstract

We reported an active multipass stretcher which can deliver chirped pulse with high energy, adjustable duration and high beam quality. The stretcher system is based on a Martinez stretcher and a regenerative amplifier. The stretched pulse duration can be adjusted without changing the layout. With 1 ns stretched pulse output per roundtrip, chirped pulse with more than 10 ns can be obtained after several round-trips. A laser amplifier is introduced into the cavity to compensate the energy loss caused by the diffraction efficiency of gratings, and several millijoules pulse energy can be obtained after stretching and amplification. Benefit with the advantage of the regenerative structure, the stretched pulses have an excellent beam quality with M2 of 1.1. This novel stretcher is significant for high peak power laser systems.

Paper Details

Date Published: 5 November 2018
PDF: 6 pages
Proc. SPIE 10811, High-Power Lasers and Applications IX, 108110Q (5 November 2018); doi: 10.1117/12.2500891
Show Author Affiliations
Hongpeng Su, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Yujie Peng, Shanghai Institute of Optics and Fine Mechanics (China)
Xinlin Lv, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Junchi Chen, Shanghai Institute of Optics and Fine Mechanics (China)
Yanyan Li, Shanghai Institute of Optics and Fine Mechanics (China)
Pengfei Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Beijie Shao, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Yuxin Leng, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10811:
High-Power Lasers and Applications IX
Ruxin Li; Upendra N. Singh, Editor(s)

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