外文题目: Optimizing the performance of non-collinear optical parametric chirped pulse amplification via multi-pass structure based on two geometry configurations
作者: Li, Wenqi; Peng, Chun; Xu, Lu; Yu, Lianghong; Liang, Xiaoyan
刊名: Opt. Express
年: 2017 卷: 25 期: 24 页： 30672--30685
英文关键词:

HIGH-CONVERSION-EFFICIENCY; PHASE-MATCHING GEOMETRIES; HIGH-ENERGY; 800 NM; ANGULAR-DISPERSION; PUMP PULSES; AMPLIFIER; OPTIMIZATION; SYSTEM; LASER
英文摘要:
We propose a method for multi-pass non-collinear optical parametric chirped pulse amplification (MNOPCPA) based on two geometries, tangent phase-matching (TPM) and Poynting vector walk-off compensation (PVWC), which optimize the performance of optical parametric chirped pulse amplification (OPCPA). A feasible design scheme is also presented for use in implementing this approach. Employing this design, we construct and perform a numerical simulation, showing that back-conversion from the signal and idler to the pump can be inhibited, and that the conversion efficiency can be boosted dramatically, approaching the theoretical limit of similar to 64%, when amplification is nearly saturated at full bandwidth. In the MNOPCPA scheme, the output signal has a wider spectrum and a corresponding shorter Fourier-limited pulse duration with the pump being continuously depleted. A barycenter shift of the signal spot results from a spatial walk-off effect due to the pump, which can be offset and corrected well. To the best of our knowledge, this is the first demonstration of a multi-pass non-collinear OPCPA method employed the scheme of regenerative amplification. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/OE.25.030672


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