首页|Suppression of nanosecond prepulses from regenerative amplifier and multipass amplifiers in the SULF-1PW laser

Suppression of nanosecond prepulses from regenerative amplifier and multipass amplifiers in the SULF-1PW laser

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In this research,we report the latest progress in the suppression of nanosecond prepulses from regenerative amplifier and multipass amplifiers in the SULF-1PW laser.The prepulse generated from the Pockels cell[PC]in a regenerative amplifier is delay-shifted by enlarging the distance between the PC and the nearby cavity mirror,and then removed by the extra pulse pickers outside the regenerative amplifier.The prepulses arising from multipass amplifiers are also further suppressed by adopting a novel amplifier configuration and properly rotating the Ti:sapphire crystals.After the optimizations,the temporal contrast on a nanosecond time scale is promoted to be better than a contrast level of 10-9.This research can provide beneficial guidance for the suppression of nanosecond prepulses in the high-peak-power femtosecond laser systems.

high-peak-power femtosecond lasernanosecond prepulsestemporal contrast

白培乐、张宗昕、王新亮、钱佳毅、朱佳诚、吴分翔、胡家兵、杨晓骏、归佳彦、陆效明、刘彦祺、许毅、梁晓燕、冷雨欣、李儒新

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State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science,Shanghai Institute of Optics and Fine Mechanics[SIOM],Chinese Academy of Sciences[CAS],Shanghai 201800,China

Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

National Key R&D Program of ChinaNational Key R&D Program of ChinaStrategic Priority Research Program of the Chinese Academy of SciencesNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaProgram of Shanghai Academic/Technology Research LeaderShanghai Municipal Science and Technology Major Project

2017YFE01237002022YFA1604401XDB1603619255076237527318XD14042002017SHZDZX02

2024

10.3788/COL202422.051404

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子：1.305
ISSN：1671-7694
年,卷(期)：2024.22(5)