强激光与粒子束, 2013, 25 (4): 875, 网络出版: 2013-03-27   

用于铷蒸气激光泵浦的窄线宽阵列半导体激光器

Laser doide array with narrow linewidth for rubidium vapor laser pumping
李志永 1,2,*谭荣清 1徐程 1,2李琳 1,2
作者单位
1 中国科学院 电子学研究所, 北京 100190
2 中国科学院 研究生院, 北京 100049
摘要
在激光二极管LD泵浦铷蒸气激光器中, 窄线宽半导体激光是实现铷蒸气激光高效率输出的关键技术之一。基于体布拉格光栅(VBG)外腔技术, 实现了40 W功率0.14 nm线宽的780 nm激光输出。采用半导体制冷片(TEC)控制VBG温度, 使得该激光器空气中波长可从779.35 nm调谐至780.10 nm, 可用于铷蒸气激光的高效泵浦。
Abstract
Since the Rb D2 absorption linewidth is much narrower than that of commercially available diode lasers, linewidth reduction of diode laser is one of the key technologies in Rb vapor laser. In this paper, a 40 W laser diode array (LDA) with linewidth of 0.14 nm and wavelength of 780 nm was realized through external cavity technology of volume Bragg grating (VBG). By controlling the temperature of the VBG with a thermoelectric cooler (TEC), the central wavelength of the LDA was tunable from 779.39 nm to 780.10 nm (in air). That means the LDA can be used as an efficient pumping source for Rb vapor lasers.
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李志永, 谭荣清, 徐程, 李琳. 用于铷蒸气激光泵浦的窄线宽阵列半导体激光器[J]. 强激光与粒子束, 2013, 25(4): 875. Li Zhiyong, Tan Rongqing, Xu Cheng, Li Lin. Laser doide array with narrow linewidth for rubidium vapor laser pumping[J]. High Power Laser and Particle Beams, 2013, 25(4): 875.

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