9 November 2016 1-MW peak power, 574-kHz repetition rate picosecond pulses at 515 nm from a frequency-doubled fiber amplifier
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Abstract
1-MW peak power picosecond, 574-kHz repetition rate green laser at 515-nm is generated from a frequency-doubled fiber amplifier. 12-ps pulses with 13.9-μJ energy at 515 nm are achieved with a noncritically phase-matched lithium triborate (LBO) crystal through second harmonic generation of a 1030 nm infrared source. The infrared source employs ultra-large-mode-area rod-type photonic crystal fiber (Rod-PCF) for direct picosecond amplification and delivers 20-W 11.6-ps 2.97-MW pulse train with near-diffraction-limited beam quality (M2 = 1.01).
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Feng Zou, Feng Zou, Ziwei Wang, Ziwei Wang, Zhaokun Wang, Zhaokun Wang, Yang Bai, Yang Bai, Qiurui Li, Qiurui Li, Jun Zhou, Jun Zhou, } "1-MW peak power, 574-kHz repetition rate picosecond pulses at 515 nm from a frequency-doubled fiber amplifier", Proc. SPIE 10016, High-Power Lasers and Applications VIII, 100160N (9 November 2016); doi: 10.1117/12.2245577; https://doi.org/10.1117/12.2245577
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