用于高功率掺钕放大器系统中波前校正的 Sn(2)P(2)S(6):Te 晶体对 1.06 微米皮秒脉冲的光学相位共轭

Optical phase conjugation of picosecond pulses at 1.06 mum in Sn(2)P(2)S(6):Te for wavefront correction in high-power Nd-doped amplifier systems.

作者信息

Bach Tobias, Nawata Kouji, Jazbinsek Mojca, Omatsu Takashige, Günter Peter

机构信息

Nonlinear Optics Laboratory, Institute of Quantum Electronics, ETH Zurich, CH-8093 Zurich, Switzerland.

出版信息

Opt Express. 2010 Jan 4;18(1):87-95. doi: 10.1364/OE.18.000087.

DOI:10.1364/OE.18.000087

PMID:20173826

Abstract

We report, for the first time to our knowledge, on picosecondpulse optical phase conjugation using photorefractive Sn(2)P(2)S(6) crystals. For 7.2-ps pulses at 1.06 mum, we have achieved phase-conjugate reflectivities of up to 45% with very fast build-up times, about 15 ms at an intensity of 23 W/cm(2) using Te-doped Sn(2)P(2)S(6). We furthermore demonstrate aberration-free 5 W optical output of 8-ps pulses at 1.06 mum from a side pumped Nd:YVO(4) amplifier using the Sn(2)P(2)S(6)-based phase-conjugate feedback.

摘要

据我们所知，我们首次报道了使用光折变晶体Sn(2)P(2)S(6)进行皮秒脉冲光相位共轭。对于1.06μm波长的7.2皮秒脉冲，我们使用掺碲的Sn(2)P(2)S(6)在强度为23W/cm(2)时实现了高达45%的相位共轭反射率，且建立时间非常快，约为15毫秒。此外，我们还展示了使用基于Sn(2)P(2)S(6)的相位共轭反馈，从侧面泵浦的Nd:YVO(4)放大器中获得1.06μm波长、8皮秒脉冲的无像差5W光输出。