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Intracavity phase locking of two beams emitting from a block of Nd:YAG medium side-pumped by laser diode array (LDA) was investigated experimentally. The interference fringes of the two beams occured at the output mirror. The coherent output power of 1.13 W was obtained with combination efficiency of 64.9% and coherence degree of about 60%. Only a metallic wire as a filter located at a suitable position close to the output mirror can efficiently lock the entire structure with less than 8% power loss. 相似文献
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激光二极管端面抽运的棒状Yb:YAG激光器 总被引:5,自引:1,他引:4
分析了影响激光二极管抽运Yb:YAG激光器调Q效率的参量,推导了激光二极管端面脉冲抽运Yb:YAG晶体的速率方程,解出了双程抽运情况下的净抽运量子产率。利用数值计算方法,模拟了净抽运量子产率与晶体长度,抽运光脉冲宽度等关系,得出晶体长度的优化可以提高Yb:YAG激光器输出效率。计算了词Q Yb:YAG激光器的最大增益、最大储能,分析了放大自发辐射对于Yb:YAG能量存储的影响。同时给出了激光二极管端面抽运调Q Yb:YAG优化设计方法。这些分析和计算为实际器件的研制提供参考。 相似文献
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