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Direct Amplification of High Energy Pulsed Laser in Fiber-Single Crystal Fiber with High Average Power
Li, Feng1,2; Yang, Zhi1; Lv, Zhiguo1; Yang, Yang1; Wang, Yishan1,2; Yang, Xiaojun1; Zhao, Wei1,2; Li, Qianglong1; Wei, Yufeng1
作者部门光子制造系统与应用研究中心
2019-04
发表期刊CRYSTALS
ISSN2073-4352
卷号9期号:4
产权排序1
摘要

A laser master oscillator power amplifier (MOPA) system consisting of a fiber amplifier and a two-stage Yb:YAG single crystal fiber (SCF) is experimentally studied. The nonlinear stimulated Raman scattering (SRS) is avoided by limiting the output power of the fiber preamplifier to 600 mW. Due to the benefit from the low nonlinearity and high amplification gain of the SCF, a laser pulse duration of 16.95 ps and a high average power of 41.7 W at a repetition rate of 250 kHz are obtained by using a two-stage polarization controlled double-pass amplification of Yb:YAG SCF, corresponding to an output energy of 166.8 J and a peak power of 9.84 MW, respectively. The polarization controlled SCF amplification scheme achieved a gain as high as more than 69 times. During the amplification, the spectra gain narrowing effect and the polarization controlled four-pass amplification setup are also studied. The laser spectrum is narrowed from over 10 nm to less than 3 nm, and the pulse width is also compressed to hundreds of femtosecond by dechirping the laser pulse. This compact-sized, cost-effective laser source can be used in laser micromachining, or as the seeder source for generating much higher power and energy laser for scientific research. For some applications which need femtosecond laser, this laser source can also be compressed to femtosecond regime.

关键词single crystal fiber ytterbium doped fiber amplifier high-energy ultrashort laser amplification
DOI10.3390/cryst9040216
收录类别SCI
语种英语
WOS记录号WOS:000467300100036
出版者MDPI
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/31409
专题光子制造系统与应用研究中心
作者单位1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
2.Inst Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China
推荐引用方式
GB/T 7714
Li, Feng,Yang, Zhi,Lv, Zhiguo,et al. Direct Amplification of High Energy Pulsed Laser in Fiber-Single Crystal Fiber with High Average Power[J]. CRYSTALS,2019,9(4).
APA Li, Feng.,Yang, Zhi.,Lv, Zhiguo.,Yang, Yang.,Wang, Yishan.,...&Wei, Yufeng.(2019).Direct Amplification of High Energy Pulsed Laser in Fiber-Single Crystal Fiber with High Average Power.CRYSTALS,9(4).
MLA Li, Feng,et al."Direct Amplification of High Energy Pulsed Laser in Fiber-Single Crystal Fiber with High Average Power".CRYSTALS 9.4(2019).
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