SHEN Zhao-guo, FU Jie, TANG Gang-feng, MAO Xin, CHENG Jian-xin, YANG Yi, Lv Xin-jie. Multi-beam pump mid-infrared laser[J]. Journal of Applied Optics, 2013, 34(3): 517-520.
Citation: SHEN Zhao-guo, FU Jie, TANG Gang-feng, MAO Xin, CHENG Jian-xin, YANG Yi, Lv Xin-jie. Multi-beam pump mid-infrared laser[J]. Journal of Applied Optics, 2013, 34(3): 517-520.
shu

Multi-beam pump mid-infrared laser

  • 1.

    Electro-Optical Equipment Research Institute of AVIC,Luoyang 471009,China;

  • 2.

    National Laboratory of Solid State Microstructure,Nanjing University,Nanjing 210093,China

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    • Abstract
  • To acquire high power and high efficiency mid-infrared laser output, using double acousto-optic Q-switched crystal, through high repetition rate drive Qswitched synchronization technology and LD-side-pumped two-rod series connection technology, high power and high beam quality 1.06 m laser twoport output was acquired, laser output of four beams was got by exterior polarizer. Using wave-plate polarization rotation principle, consistent polarization laser output of four beams could be realized, PPLT was pumped to get high power 3 m~5 m Mid-IR laser output. As the input current was 30 A and the Qswitched frequency was 10 kHz, the highest out power of 3.9 m laser was 10.6 W, conversion efficiency of 1.06 m ~3.9 m laser was 9.5%. Experiment results indicate that using double acousto-optic Q-switched technology and LD-side-pumped two-rod series connection technology, high repetition 1.06 m polarizer laser output of four beams can be realized, and pumping PPLT can gain high power 3.9 m mid-infrared laser output.
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