二极管泵浦腔内OPO高重复频率2 μm激光器
LD pumped intro-cavity OPO high repetition frequency 2 μm laser
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摘要: 概述了2μm激光器的发展状况及应用背景， 通过对2μm激光两种实现方式的比较，最终采用了可调谐方式间接获得2 μm激光的方案。以1.06 μm激光为泵浦源，采用二极管泵浦腔内OPO的方案能有效提高泵浦峰值功率密度，有利于实现高重复频率2 μm激光输出。利用KTP晶体在特定切割角度下实现波长简并输出，合理设计OPO腔，可以有效提高2 μm激光的输出效率。同时进行了激光输出实验，实现了功率11.2 W的2 μm波长激光输出。Abstract: The development and application background of 2 μm laser were summarized. Two schemes to obtain 2 μm laser were compared and the indirect tunable scheme was adopted.After LD pumped intra-cavity KTP OPO being adopted, the pump peak value power density was increased and high repetition frequency of 2 μm laser was implemented easily. With KTP crystal cut under specifically angle and OPO resonator designed reasonably, 2 μm laser output efficiency was improved effectively. 2 μm laser experiment was performed, and 11.2 W of 2 μm laser output was realized．
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Key words:
- 2 μm laser /
- ld pumped /
- ktp opo
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