Single polarization picosecond fiber MOPA power scaled to beyond 500W


          

刊名：Laser Physics Letters
作者：Peh Siong Teh（Optoelectronics Research Centre, University of Southampton）
Shaif-ul Alam（Optoelectronics Research Centre, University of Southampton）
Richard J. Lewis（Optoelectronics Research Centre, University of Southampton）
David J. Richardson（Optoelectronics Research Centre, University of Southampton）
刊号：537C0020
ISSN：1612-2011
出版年：2014
年卷期：2014, vol.11, no.8
页码：085103-1--085103-5
总页数：5
分类号：TN241
关键词：Fiber amplifier；High power laser；Picosecond；Nonlinear effects
参考中译：
语种：eng
文摘：We demonstrate a gain-switched diode-seeded, ytterbium-doped fiber based master oscillator power amplifier (MOPA) system, capable of delivering 2.4μJ, 35 ps pulses at a repetition frequency of 215 MHz in a single-polarization, close to diffraction limited beam. We are aware that the corresponding average power of > 500W is a record for such a MOPA system. Further pulse energy scaling was limited primarily by the onset of nonlinear effects such as self-phase modulation and stimulated Raman scattering which led to a compromised pulse quality at higher peak powers (> 70 kW).



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