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首页> 外文会议>Conference on Solid State Lasers : Technology and Devices >VIS-to-NIR multiple output sub-TW class modular laser based on OPCPA and TSRCPA
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VIS-to-NIR multiple output sub-TW class modular laser based on OPCPA and TSRCPA

机译：基于OPCPA和TSRCPA的VIS-to-nir多输出子-w类模块化激光器

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摘要

We describe sub-TW class modular laser with multiple outputs in the visible and near-infrared wavelength range based on Optical Parametric Chirped Pulse Amplification (OPCPA) and Transient Stimulated Raman Chirped Pulse Amplification (TSRCPA). It provides 1.2 ps pulses with an energy of ~20 mJ at 1030 nm from two-stage double-pass Yb:YAG chirped pulse amplifier; ~20 fs pulses with an energy of >2 mJ at a central wavelength of 790 nm from OPCPA and 145 fs pulses with an energy of 0.6 mJ at a central wavelength of 1135 nm from TSRCPA. White light supercontinuum extending from 500 nm to 2300 nm in the YAG was used for seeding both a three-stage OPCPA based on BBO and a two-stage TSRCPA based on K.GW crystals. The wide OPCPA bandwidth was maintained by the temporal shaping of pump pulses. We demonstrate the expansion of the spectrum of pulses amplified in the TSRCPA by ~10 times in comparison with the spectral bandwidth of the pump pulses. A maximum conversion efficiency of 55% was achieved in the second TSRCPA stage. The amplified pulses after compression were more than 8 times shorter than the pump pulses.
机译：我们描述了基于光学参数啁啾脉冲放大（OPCPA）和瞬态刺激的拉曼啁啾脉冲放大（TSRCPA）的可见光和近红外波长范围内具有多个输出的子-W级模块化激光器。它提供1.2 PS脉冲，通过两级双通YB，1030nm处的能量为〜20 mj的能量：YAG啁啾脉冲放大器; 〜20 FS脉冲具有> 2 MJ的能量，其中心波长为790nm，从OPCPA和145 FS脉冲，能量在来自TSRCPA的1135nm的中心波长下为0.6 MJ。在YAG中从500nm到2300nm延伸的白光超连续素用于播种基于BBO的三级OPPA和基于K.GW晶体的两级TSRCPA。通过泵脉冲的时间成型来维持宽的OPCPA带宽。与泵脉冲的光谱带宽相比，我们展示了在TSRCPA中放大的脉冲频谱的扩展。在第二TSRCPA阶段实现了55％的最大转化效率。压缩后的放大脉冲比泵脉冲短8倍。

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