Modeling and analysis on performance of diode pumped metastable rare gas laser
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摘要: 建立了半导体泵浦亚稳态惰性气体激光器（DPRGL）速率方程模型，以Ar为例，仿真分析泵浦强度、亚稳态原子数密度以及增益介质长度对DPRGL工作性能的影响。结果表明：高泵浦强度（约kW/cm2）条件下DPRGL理论上具有大于55%的光-光效率；亚稳态原子数密度和增益介质长度对激光器性能影响具有等价性；实际中需综合优化泵浦强度、亚稳态原子数密度、增益介质长度等激光器参量以实现激光器最大的光光转换效率。Abstract: The rate equations model of diode pumped metastable rare gas laser(DPRGL) is established, and taking an argon DPRGL as an example, the influence of pump intensity, metastable atom density and gain medium length on characteristics of DPRGL are simulated and discussed. The results indicate that the DPRGL has a laser efficiency higher than 55% in theory under high pump intensity (~kW/cm2). Influence of metastable atom density and length of gain medium on the DPRGL is equivalent. Main important laser parameters need to be optimized harmoniously to obtain optimal optical conversion efficiency of the DPRGL.
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Key words:
- rate equation /
- gas laser /
- metastable atom /
- rare gas
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