High-repetition-rate, 50-μJ-level, 1064-nm, CPA laser system based on a single-stage double-pass Yb-doped rod-type fiber amplifier

被引:17
作者
Zhao, Qikai [1 ,2 ]
Gao, Guanguang [1 ,2 ]
Cong, Zhenhua [1 ,2 ]
Zhang, Zhen [1 ,2 ]
Liu, Gaoyou [1 ,2 ]
Liu, Zhaojun [1 ,2 ]
Zhang, Xingyu [1 ,2 ]
Zhao, Zhigang [1 ,2 ,3 ]
机构
[1] Shandong Univ, Sch Informat Sci & Engn, Qingdao 266237, Peoples R China
[2] Shandong Univ, Shandong Prov Key Lab Laser Technol & Applicat, Qingdao 266237, Peoples R China
[3] Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
来源
OPTICS EXPRESS | 2022年 / 30卷 / 03期
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
CHIRP MANAGED AMPLIFICATION; W AVERAGE POWER; FEMTOSECOND FIBER; HIGH-GAIN; GENERATION; NM; CONVERSION; RADIATION; PULSES; ENERGY;
D O I
10.1364/OE.449112
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A 1064-nm femtosecond fiber chirped pulse amplification (FCPA) laser system based on a single-stage double-pass Yb-doped rod-type photonic crystal fiber (PCF) amplifier was demonstrated with a pulse repetition rate of 500 kHz, which was specially designed for expected conversion efficiency enhancement of a 10.8 eV source. With a series of Yb:fiber power amplifiers, the average output power was boosted to approximately 35 W. Further, using a transmission gratings-based pulse compressor, an average output power of 27.5 W was achieved, corresponding to a pulse energy of 55 mu J and a compression efficiency of 78.6%. The shortest pulse duration was optimized to be 204 fs, which was also accompanied by obvious pedestal. A pulse duration of 336 fs was also obtained when the pulse quality was at a top priority. To the best of our knowledge, this is the first demonstration of high-repetition-rate high-pulse-energy 1064-nm, instead of 1035-nm, femtosecond laser, based on commercially available Yb-doped rod-type PCF amplifier. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码:3611 / 3619
页数:9
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