Efficiency optimization of the square pulse pumped terawatt level Optical Parametric Chirped Pulse Amplifier

被引：0

作者：

Stepanenko, Yuriy ^{[1
]}

Wnuk, Pawel ^{[1
]}

Nejbauer, Michal ^{[1
]}

Radzewicz, Czeslaw ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Phys Chem, PL-01224 Warsaw, Poland

来源：

TECHNOLOGIES FOR OPTICAL COUNTERMEASURES VIII | 2011年 / 8187卷

关键词：

Ultrafast lasers; Parametric oscillators and amplifiers; Pulse compression; HIGH-CONVERSION-EFFICIENCY; ND-YAG LASERS; LIGHT-PULSES; 2ND-HARMONIC GENERATION; AMPLIFICATION SYSTEM; SINGLE-CRYSTALS; MULTI-TERAWATT; GAIN BANDWIDTH; NANOSECOND; TRIBORATE;

D O I：

10.1117/12.903732

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Numerical simulations and analysis of a very efficient and stable non-collinear Optical Parametric Chirped Pulse Amplification (OPCPA) femtosecond system are presented. The system is optimized for a long (nanosecond), rectangular temporal profile and a flat-top spatial profile of the pump laser pulse. We show that a two stage system consisting of a multipass preamplifier and a time-sheared power amplifier operating around 850 nm and pumped by a 532 nm pulse can amplify pulses directly from a femtosecond oscillator up to multi-terawat levels with quantum efficiencies as high as 0.9. We also discuss practical schemes of the few-cycle multi-terawatt OPCPA systems employing different nonlinear crystals. The results of the Monte-Carlo simulations are used to balance the stability and efficiency of the parametric amplifier system.

引用

页数：12

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