Experimental investigation on pulse-contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification
Experimental investigation on pulse-contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification
复制标题
光学参量啁啾脉冲放大中表面反射引起的脉冲对比度下降的实验研究
DOI：
10.3788/col201816.053201
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发表时间：
2018-05
影响因子：
3.5
通讯作者：
Leng Yuxin
中科院分区：
文献类型：
--
作者：
Wang Xinliang;Lu Xiaoming;Guo Xiaoyang;Xu Rongjie;Leng Yuxin
在这封信中，我们实验研究了光学参量啁啾脉冲放大中由表面反射引起的脉冲对比度退化。分别通过改变种子脉冲或泵浦脉冲的能量以及插入不同反射系数的标准具，获得不同的泵浦-信号转换效率和不同强度的后脉冲。对比度测量表明，产生的第一预脉冲强度与表面反射强度比和泵浦-信号转换效率的平方的乘积成正比。
In this Letter, we experimentally explore the pulse-contrast degradation caused by surface reflection in optical parameter chirped-pulse amplification. Different pump-to-signal conversion efficiencies and post-pulses with different intensities are obtained by changing the seed-pulse or pump-pulse energy and inserting etalons with different reflection coefficients, respectively. The contrast measurements show that the generated first pre-pulse intensity is proportional to the product of the surface reflection intensity ratio and the square of the pump-to-signal conversion efficiency.