李刚, 宁子立, 杨爱粉, 韩耀锋. 基于光参量振荡器的重频人眼安全激光器技术研究[J]. 应用光学, 2011, 32(3): 579-581.
引用本文: 李刚, 宁子立, 杨爱粉, 韩耀锋. 基于光参量振荡器的重频人眼安全激光器技术研究[J]. 应用光学, 2011, 32(3): 579-581.
LI Gang, NING Zi-li, YANG Ai-fen, HAN Yao-feng. Eye-safe repetition laser based on optical parametric oscillator[J]. Journal of Applied Optics, 2011, 32(3): 579-581.
Citation: LI Gang, NING Zi-li, YANG Ai-fen, HAN Yao-feng. Eye-safe repetition laser based on optical parametric oscillator[J]. Journal of Applied Optics, 2011, 32(3): 579-581.

基于光参量振荡器的重频人眼安全激光器技术研究

Eye-safe repetition laser based on optical parametric oscillator

  • 摘要: 对KTP-OPO的相位匹配进行了理论分析和计算,并绘制了角度调谐曲线。基于光参量振荡器,选用KTP非线性晶体,在1.57m人眼安全激光波段进行了实验研究。将脉冲氙灯侧面泵浦Nd∶YAG 1.064 m激光应用于腔内KTP-OPO设计中,在工作频率5 Hz时,输出激光能量32 mJ,脉冲宽度7.22 ns,光光转换效率为41%。这一结果使重频远距离人眼安全激光测距成为可能。

     

    Abstract: The phase-matching mode of KTP-OPO was theoretically analyzed and calculated, and the angle-tuning curve of KTP-OPO was given. A 1.57 m eye-safe laser based on optical parametric oscillator was experimentally studied, which adopted KTP nonlinear optical crystal. Using a xeno-flash-lamp-pumped 1.064 m Nd∶YAG laser in intracavity KTP-OPO,under the repetition rate of 5 Hz, a laser output with the energy of 32 mJ and the pulse width of 7.22 ns was obtained. The optical-to-optical conversion efficiency was 41%, which makes long range laser range finding possible.

     

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