Generation of 46 W green-light by frequency doubling of 96 W picosecond unpolarized Yb-doped fiber amplifier
Generation of 46 W green-light by frequency doubling of 96 W picosecond unpolarized Yb-doped fiber amplifier
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通过 96 W 皮秒非偏振掺镱光纤放大器倍频产生 46 W 绿光
DOI:
10.1016/j.optlastec.2017.11.048
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发表时间:
2018-05
影响因子:
5
通讯作者:
Lin Xuechun
中科院分区:
文献类型:
--
作者:
Qi Yaoyao;Yu Haijuan;Zhang Jingyuan;Zhang Ling;He Chaojian;Lin Xuechun
We demonstrated a high efficiency and high average power picosecond green light source based on SHG (second harmonic generation) of an unpolarized ytterbium-doped fiber amplifier chain. Using single-pass frequency doubling in two temperature-tuned type-I phase-matching LBO crystals, we were able to generate 46 W, >70 ps pulses at 532 nm from a fundamental beam at 1064 nm, whose output is 96 W, 4.8 μJ, with a repetition frequency of 20 MHz and nearly diffraction limited. The optical conversion efficiency was ∼48% in a highly compact design. To the best of our knowledge, this is the first reported on ps green source through SHG of an unpolarized fiber laser with such a high output and high efficiency.
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