Volume 11 Issue 5
Oct.  2018
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KANG Zhi-jun, ZHANG Hong-bo, YAN Xiao-chao, LANG Ye, BAI Zhen-ao, FAN Zhong-wei. 200 Hz high repetition frequency SBS pulse width compression experiment[J]. Chinese Optics, 2018, 11(5): 736-744. doi: 10.3788/CO.20181105.0736
Citation: KANG Zhi-jun, ZHANG Hong-bo, YAN Xiao-chao, LANG Ye, BAI Zhen-ao, FAN Zhong-wei. 200 Hz high repetition frequency SBS pulse width compression experiment[J]. Chinese Optics, 2018, 11(5): 736-744. doi: 10.3788/CO.20181105.0736

200 Hz high repetition frequency SBS pulse width compression experiment

doi: 10.3788/CO.20181105.0736
Funds:

the National Research and Development Projects for Key Scientific Instruments ZDYZ2013-2

More Information
  • Corresponding author: FAN Zhong-wei, E-mail:fanzhongwei@aoe.ac.cn
  • Received Date: 09 Feb 2018
  • Rev Recd Date: 06 Mar 2018
  • Publish Date: 01 Oct 2018
  • Stimulated Brillouin scattering (SBS) pulse width compression is one of the important pathway to achieve high peak power and short pulse output. However, the current SBS pulse with compression is limited to 1~10 Hz low repetition frequency lasers, which limits the application of high repetition frequency short pulse lasers in the fields of laser radar, space debris detection, target imaging. Therefore, the experimental study of SBS pulse width compression at high repetition frequency is carried out. The main oscillation amplification laser with high repetition frequency is designed and the SBS secondary cascade pulse width compression and SBS oscillation amplification double pool pulse width compression experiments are carried out. Through SBS secondary cascade compression, the pulse width is compressed from ~32 ns to ~1.9 ns, and the pulse width compression ratio is up to 16 times. The SBS oscillation amplification double-cell structure realizes the pulse width from ~4 ns to 376 ps, and the pulse width compression ratio is up to 10 times. The experimental results show that no optical breakdown occurred in case of the ultra-clean closed SBS phase conjugation mirror when the output power of Stokes light reaches 50mJ, thus achieving SBS pulse width compression at a high repetition rate of 200 Hz.

     

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