基于全镱激光的500千赫兹光参量啁啾脉冲放大器，可产生平均功率为15瓦、可调谐的亚20飞秒脉冲。

500 kHz OPCPA delivering tunable sub-20 fs pulses with 15 W average power based on an all-ytterbium laser.

作者信息

Puppin Michele, Deng Yunpei, Prochnow Oliver, Ahrens Jan, Binhammer Thomas, Morgner Uwe, Krenz Marcel, Wolf Martin, Ernstorfer Ralph

出版信息

Opt Express. 2015 Jan 26;23(2):1491-7. doi: 10.1364/OE.23.001491.

DOI:10.1364/OE.23.001491

PMID:25835905

Abstract

An optical parametric chirped pulse amplifier fully based on Yb lasers at 500 kHz is described. Passive optical-synchronization is achieved between a fiber laser-pumped white-light and a 515 nm pump produced with a 200 W picosecond Yb:YAG InnoSlab amplifier. An output power up to 19.7 W with long-term stability of 0.3% is demonstrated for wavelength tunable pulses between 680 nm and 900 nm and spectral stability of 0.2%; 16.5 W can be achieved with a bandwidth supporting 5.4 fs pulses. We demonstrate compression of 30 µJ pulses to sub-20 fs duration with a prism compressor, suitable for high harmonic generation.

摘要

描述了一种完全基于500kHz的镱激光器的光学参量啁啾脉冲放大器。在光纤激光泵浦的白光与由200W皮秒镱：钇铝石榴石（Yb:YAG）InnoSlab放大器产生的515nm泵浦光之间实现了被动光学同步。对于680nm至900nm之间的波长可调脉冲，展示了高达19.7W的输出功率，长期稳定性为0.3%，光谱稳定性为0.2%；在支持5.4fs脉冲的带宽下可实现16.5W的功率。我们展示了使用棱镜压缩器将30µJ脉冲压缩至亚20fs持续时间，适用于高次谐波产生。