Optical parametric amplification pumped by a phase-aberrated beam

被引:18
|
作者
Wei, Xiaohong [1 ]
Qian, Liejia [1 ]
Yuan, Peng [1 ]
Zhu, Heyuan [1 ]
Fan, Dianyuan [1 ]
机构
[1] Fudan Univ, State Key Lab Adv Photon Mat & Devices, Dept Opt Sci & Engn, Adv Mat Lab, Shanghai 200433, Peoples R China
关键词
D O I
10.1364/OE.16.008904
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper we theoretically study the spatial characteristics of optical parametric amplification (OPA) or chirped pulse OPA (OPCPA) pumped with a phase-aberrated beam. Due to the fact that pump-to-signal phase transfer caused by walk-off effect is highly gain-dependent, in a high gain OPA system the signal beam-quality will be significantly degraded even for a weak walk-off, accompanied with beam tilting and converging or diverging. It is demonstrated that an OPA configuration with walkoff-compensated crystal pair is capable of reducing the phase transfer and hence ensuring signal beam-quality, which may be of importance for designing high-energy OPCPA systems. (c) 2008 Optical Society of America.
引用
收藏
页码:8904 / 8915
页数:12
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