The promise of cryogenic solid-state lasers
The promise of cryogenic solid-state lasers
复制标题
低温固体激光器的前景
DOI：
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发表时间：
2005
影响因子：
4.9
通讯作者：
David C. Brown
中科院分区：
文献类型：
--
作者：
David C. Brown
固态激光器的低温冷却具有许多重要的益处，包括在高平均功率激光器中光学畸变几乎消失，以及增强的光谱和激光特性。这些优点刚刚开始被利用来生产紧凑的高平均功率激光器，其输出可扩展，接近衍射极限，其效率将超过现代大块固态激光器。在本文中，我们回顾了低温冷却固态激光器的历史和低温冷却的好处，包括光学和激光性能和热性能和热光性能;检查低温放大器和冷却方法，包括直通传播薄盘配置，在室温下表现不佳，并总结了迄今为止的实验性能。作为一个具体的例子，我们研究了Yb：YAG的光谱和激光特性，并表明使用目前可用的技术，在不久的将来可以实现紧凑的高效率和高平均功率，近衍射极限激光器（>100 kW）。
Cryogenic cooling of solid-state lasers has a number of important benefits, including the near vanishing of optical distortion in high average power lasers, as well as enhanced spectroscopic and lasing properties. These benefits are just beginning to be exploited to produce compact high average power lasers whose output is scalable, near diffraction limited, and whose efficiencies will exceed those of modern bulk solid-state lasers. In this paper, we review the history of cryogenically cooled solid-state lasers and the benefits of cryogenic cooling, including optical and laser properties and thermal and thermooptic properties; examine cryogenic amplifiers and cooling methods, including a straight-through propagation thin-disk configuration that does not perform well at room temperature, and summarize the experimental performance demonstrated to date. As a specific example, we examine the spectroscopic and lasing properties of Yb:YAG and show that compact high efficiency and high average power, near diffraction limited lasers (>100 kW) can be realized in the near future using presently available technology.