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

作　　者：李志永[1,2] 谭荣清[1] 徐程[1,2] 李琳[1,2] 

机构地区：[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

出　　处：《强激光与粒子束》2013年第4期875-878,共4页High Power Laser and Particle Beams

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40W功率0.14nm线宽的780nm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779.35nm调谐至780.10nm,可用于铷蒸气激光的高效泵浦。Since the Rb D2 absorption linewidtb 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 line- width 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.

关 键 词：半导体激光器 窄线宽 半导体泵浦铷蒸气激光 体布拉格光栅 

分 类 号：TN248.4[电子电信—物理电子学]