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激光二极管抽运单/双增益模块的液体激光系统性能对比 被引量:9

Performancason Compare of Laser Diode-Pumped Liquid Laser between Single Gain Host and Double Gain Host
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摘要 单增益模块的无机液体激光体系在通过流动循环散热时,也导致抽运区域的增益介质在流动方向上产生了热梯度。而双增益模块的液体激光系统既能有效地散热,同时也避免了流动方向的热梯度,具有较好的性能。采用数值计算方法模拟了同样增益长度的单、双增益模块系统的热特性和输出激光的远场光斑分布,并进行了对比分析。结果表明双增益模块液体激光系统的性能明显优于单增益模块系统:远场光斑的峰值强度提高一个数量级,能量集中度和光束质量均得到明显的提高。 Flowing circulation can emanate heat of liquid laser with single gain host, but it also arises heat gradient in the flowing direction. Double gain host can emanate heat effectively and avoid heat gradient in flowing direction, and possesses better performance. The heat character and far-field facula of liquid laser with single gain host and double gain host at the same gain length were simulated, and then compared. The result indicates the performance of the double gain host is much better than that of the single gain host: the peak intensity of far-field facular is enhanced by ten times, and the energy concentration extent and beam quality are both enhanced evidently.
作者 李密 许正 陈兴无 苏毅 李春领 Li Mi Xu ,Zheng Chen, Xingwu ,Su Yi, Li Chunling (Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China )
出处 《光学学报》 EI CAS CSCD 北大核心 2008年第4期722-725,共4页 Acta Optica Sinica
关键词 激光器 液体激光器 单增益模块 双增益模块 远场光斑 数值模拟 lasers liquid laser single gain host double gain host far-field facula numerical simulation
作者简介 李密(1981-),男,湖南人,硕士研究生,主要从事液体激光系统方面的研究。E—mail:limi@tsinghua.org.cn 导师简介:陈兴无(1968-),男,湖南人,研究员,硕士生导师,主要从事激光器技术方面的研究。Email:chenxw@caep.com.net
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