二极管泵浦300 W热容固体激光器
300 W diode- pumped solid state heat capacity laser
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摘要: 开展了热容二极管泵浦固体激光器理论和实验研究，针对热容工作模式下工作物质的激光特性进行了初步分析，数值模拟了激光介质增益分布及温度场、应力场分布，初步完成了热容激光器实验平台的建立，在平均泵浦功率1.25 kW的激励条件下获得了大于300 W的激光输出，连续出光时间为5 s，占空比为15%，光-光转换效率约为25%。Abstract: The heat- capacity operation of a solid state laser is a novel method by which a high quality beam and high average power can be generated. This paper describes a diodes- pumped solid state heat capacity laser that produces average power of 300 W and a running duration of 5 s. In order to get a uniform gain distribution and acquire a fine thermal distribution to reduce the stress of laser material and to lengthen the time of output, numerical simulation was done to meet the operation conditions of laser . The experiment results show that the output power is up 300 W, the optical- optical efficiency is above 25%．
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Key words:
- laser diode /
- heat capacity /
- thermal distribution /
- stress distribution /
- gain distribution
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