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首页> 外文期刊>Applied physics >High-power LD side-pump Nd: YAG regenerative amplifier at 1 kHz repetition rate with volume Bragg gratings (VBG) for broadening and compressor
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High-power LD side-pump Nd: YAG regenerative amplifier at 1 kHz repetition rate with volume Bragg gratings (VBG) for broadening and compressor

机译：大功率LD侧泵Nd：YAG再生放大器，重复频率为1 kHz，带有体积布拉格光栅（VBG），用于加宽和压缩

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摘要

Pulse width of 8.7 ps was broadened to 102.2, 198 ps with single and double pass the VBG respectively. When the 102.2 ps pulse was injected into 1 kHz repetition rate of LD side-pump Nd: YAG regenerative amplifier (RA), pulse width of 87.5 ps at 1 kHz was obtained with the pulse energy of 9.4 mJ, the beam quality of M boolean AND 2 factor was 1.2. The pulse width was compressed to 32.7 ps with a single pass VBG and the pulse energy reduced to 8.8 mJ, and the power density was up to 15.2 GW/cm(2), the stability for pulse to pulse rms is about 0.6 %, beam pointing was about 35 mu rad. In addition, when 198 ps pulse was injected into RA, pulse width of 156 ps was obtained which energy was 9.6 mJ, the pulse width was compressed to 38 ps by double passing the VBG, the pulse energy decreased to 8.5 mJ. Chirped VBG is a new way to obtain high-intensity picosecond pulse laser system simple and smaller.
机译：8.7 ps的脉冲宽度分别通过单次和两次通过VBG扩展到102.2、198 ps。当将102.2 ps脉冲注入LD侧泵Nd：YAG再生放大器（RA）的1 kHz重复频率时，在1 kHz处获得87.5 ps的脉冲宽度，脉冲能量为9.4 mJ，M布尔的光束质量AND 2系数为1.2。使用单程VBG将脉冲宽度压缩至32.7 ps，并将脉冲能量降低至8.8 mJ，并且功率密度高达15.2 GW / cm（2），脉冲到脉冲rms的稳定性约为0.6％，束指点约35亩拉德。此外，当向RA中注入198 ps脉冲时，获得156 ps的脉冲宽度，能量为9.6 mJ，通过两次通过VBG将脉冲宽度压缩为38 ps，脉冲能量降至8.5 mJ。 rp VBG是获得简单而又小巧的高强度皮秒脉冲激光系统的新方法。

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  • 来源
    《Applied physics》 |2016年第5期|142.1-142.5|共5页
  • 作者

    Long Ming-Liang; Chen Li-Yuan; Chen Meng; Li Gang;

  • 作者单位

    Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China;

    Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou 350002, Peoples R China;

    Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China;

    Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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