外文题目: Numerical investigations of signal-spectrum shaping based on conformal profile theory in optical parametric chirped pulse amplification
作者: Li, Wenqi; Yu, Lianghong; Peng, Chun; Liang, Xiaoyan
刊名: Opt. Commun.
年: 2017 卷: 403 页： 81--86
英文关键词:

HIGH-CONVERSION-EFFICIENCY; HIGH-ENERGY; ANGULAR-DISPERSION; PUMP PULSES; 800 NM; OPTIMIZATION; GENERATION; AMPLIFIER; SYSTEM; LASER
英文摘要:
We proposed a theoretical description and numerical model of signal-spectrum shaping based on conformal profile theory and the three-dimensional coupling wave equations for improving the performance of optical parametric chirped pulse amplification (OPCPA). Using our model, we executed quantitative simulations of signal-spectrum shaping and compared the differences of spatiotemporal amplification characteristics between a shaped signal-spectrum and Gaussian signal-spectrum of an OPCPA based on LiB3O5 near 800 nm. By comparison, we found that the conversion efficiency from pump to signal can be dramatically boosted via signal-spectrum shaping. Meanwhile the amplified-spectrum profile, as well as the Fourier-limited pulse, can be improved significantly. We also found that the spatial spot profiles, for injecting a shaped signal or a Gaussian signal in OPCPA, are nearly the same before the saturation regime and at the maximum conversion efficiency or output energy.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1016/j.optcom.2017.07.018


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