外文题目: High contrast amplification at 1053 nm limited by pulse stretching-compressing process
作者: 陆效明; 彭宇杰; 李妍妍; 郭晓杨; 冷雨欣; 隋展; 许毅; 王新亮
刊名: Chin. Opt. Lett.
年: 2016 卷: 14 期: 2 文章编号：23201
英文关键词:

OPTICAL-PARAMETRIC AMPLIFIER; LASER SYSTEM; TI/SAPPHIRE LASER; TEMPORAL CONTRAST; GENERATION; PETAWATT; DEGRADATION; SUPPRESSION; FACILITY; TI
英文摘要:
We report on our high-contrast laser based on high-contrast, high-energy seed injection, low-gain optical parametric chirped pulse amplification (OPCPA), and Nd:glass amplifiers, which can be used as the high-contrast front end of a high-power Nd:glass chirped pulse amplification (CPA) laser system. The energy of the stretched 1053 nm high-contrast seed pulse increases to 60 mu J by optimizing the frequency doubling crystal in the pulse cleaning device. After passing through a two-stage low-gain OPCPA, a 2-pass 2-rod Nd:glass amplifier, and a compressor the amplified pulse of 131 mJ/282 fs is achieved. The third-order correlation scanning measurement shows that the pulse contrast in the tens of ps range is about 10(-7)-10(-8). With the high-contrast seed passing through the stretcher and compressor only, the contrast measurement indicates that the stretching-compressing process leads mainly to the contrast degradation of the amplified pulse.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.3788/COL201614.023201


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