1 μJ, sub-300 fs pulse generation from a compact thulium-doped chirped pulse amplifier seeded by Raman shifted erbium-doped fiber laser

被引:30
作者
Tan, Fangzhou [1 ]
Shi, Hongxing [1 ]
Sun, Ruoyu [1 ]
Wang, Peng [1 ]
Wang, Pu [1 ]
机构
[1] Beijing Univ Technol, Inst Laser Engn, Beijing Engn Res Ctr Laser Appl Technol, Beijing 100124, Peoples R China
基金
中国国家自然科学基金;
关键词
HIGH-POWER; SUPERCONTINUUM GENERATION; PEAK POWER; AMPLIFICATION; SYSTEM; ULTRAFAST; EVOLUTION; COMB;
D O I
10.1364/OE.24.022461
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a compact thulium-doped chirped pulse amplifier producing 241 fs pulses with 1 mu J energy. The system is seeded with the Raman shifted soliton generated by the combination of an erbium-doped femtosecond laser and a nonlinear fiber. The Tm-doped large mode area fiber yields output power of 71 W, corresponding to pulse energy of 2.04 mu J, with a slope efficiency of 52.2%. The amplified pulses have been compressed to a duration time of 241 fs, using a folded Treacy grating setup. The pulse energy is measured to be 1.02 mu J, corresponding to a peak power of similar to 3 MW. To the best of our knowledge, this is the highest average power and pulse energy generated from an all-fiber, Raman shifted soliton seeded thulium-doped chirped pulse amplifier system. (C) 2016 Optical Society of America
引用
收藏
页码:22461 / 22468
页数:8
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