激光与光电子学进展, 2010, 47 (9): 091405, 网络出版: 2010-08-23   

谱宽压窄大功率半导体激光器研究进展

Rearch Development of Linewidth Narrowing of High Power Diode Lasers
作者单位
国防科学技术大学 光电科学与工程学院,湖南 长沙 410073
摘要
近年来以半导体激光器为抽运源的碱金属蒸气激光器在高能激光领域获得了快速的发展,但是碱金属蒸气激光器的吸收谱宽非常窄,即使在充入一个大气压缓冲气体后其吸收谱宽仍小于100 GHz(0.2 nm),而市售半导体激光器的输出线宽约1000 GHz(2 nm),难以实现有效抽运,因此对窄线宽大功率半导体激光器提出迫切需求。在介绍半导体激光器抽运碱金属蒸气激光器基本原理的基础上,综述了用于大功率半导体激光器窄线宽的方法,分析了其优缺点,最后介绍谱宽压窄大功率半导体激光器的发展途径。
Abstract
In recent years,laser diode pumped alkali laser (DPAL) has obtained a rapid development which has great potential to become a new kind of high-energy laser.But the absorption linewidth of the alkali atom even with proper one atomspheric pressure of buffer gas is difficult to exceed 100 GHz comparing with the 1000 GHz linewidth of the commercial diode laser.In order to pump the alkali laser efficiently,the high power frequency narrowed diode laser is needed.On the basis of the principle of laser diode pumped alkali laser,different ways to narrow the linewidth of high power diode lasers are introduced,the characteristics of each method are compared and a review on expectation and development for high power frequency narrowed diode laser is made.
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李元栋, 华卫红, 王红岩, 杨子宁. 谱宽压窄大功率半导体激光器研究进展[J]. 激光与光电子学进展, 2010, 47(9): 091405. Li Yuandong, Hua Weihong, Wang Hongyan, Yang Zining. Rearch Development of Linewidth Narrowing of High Power Diode Lasers[J]. Laser & Optoelectronics Progress, 2010, 47(9): 091405.

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