首页> 外文期刊>Journal of the Optical Society of America, B. Optical Physics >Bandwidth control in 5 mu m pulse generation by dual-chirped optical parametric amplification
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Bandwidth control in 5 mu m pulse generation by dual-chirped optical parametric amplification

机译:通过双-光参量放大控制5μm脉冲中的带宽

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摘要

We extend the technique of difference-frequency mixing of broadband chirped near-infrared (IR) pulses to longer wavelengths, thereby generating high-energy, bandwidth-tunable laser pulses in the mid-IR spectral region. Numerical modeling has been performed to examine the influence of pump and seed chirp on the generated idler bandwidth and pulse duration. The amplifier is realized using zinc-germanium phosphide crystals pumped by a 2 mu m ultrafast parametric source. Idler pulses at a center wavelength of 5 mu m with adjustable bandwidth are produced by equally chirping the pump and seed pulses using material dispersion. Using this simple approach, efficient generation of narrowband, short, mid-IR laser pulses is achieved without the use of high-loss dispersive gratings or prism pairs. (C) 2016 Optical Society of America
机译:我们将宽带chi近红外(IR)脉冲的差频混合技术扩展到更长的波长,从而在中红外光谱范围内产生高能量,带宽可调的激光脉冲。已经进行了数值建模,以检查泵浦和种子chi对所产生的惰轮带宽和脉冲持续时间的影响。该放大器是使用由2μm超快参数源泵浦的磷化锌锗锗晶体实现的。中心波长为5μm且带宽可调的空转脉冲是通过使用材料分散均匀地chi激泵浦脉冲和种子脉冲而产生的。使用这种简单的方法,可以有效地生成窄带,短,中红外激光脉冲,而无需使用高损耗色散光栅或棱镜对。 (C)2016美国眼镜学会

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