^(40)K-^(87)Rb原子冷却的半导体激光系统  

A laser diode system for ^(40)K-^(87)Rb atomic cooling

作　　者：卫栋[1] 陈海霞[1] 熊德智[1] 张靖[1] 

机构地区：[1]山西大学光电研究所,量子光学与光量子器件国家重点实验室,太原030006

出　　处：《物理学报》2006年第12期6342-6346,共5页Acta Physica Sinica

基　　金：教育部新世纪优秀人才支持计划(批准号:NCET-04-0256);高等学校博士学科点专项科研基金(批准号:20050108007).~~

摘　　要：对40K-87Rb原子冷却的半导体激光系统提出了一种实验方案,并进行了初步实验.采用三台外腔光栅反馈半导体激光器(ECDL)、四台注入锁定从激光器和一台半导体激光放大器组成激光系统.三台ECDL通过声光调制器产生四束光,分别作为40K和87Rb原子的冷却光和再抽运光,四束不同频率成分的激光分别注入锁定四台从激光器,然后Rb冷却光、K冷却光和K再抽运光再同时注入半导体激光放大器进行放大.该装置可同时产生冷却40K和87Rb原子的冷却光和再抽运光,结构紧凑、工作稳定.We have developed a semiconductor laser system used in ^40K-^87Rb trapping and cooling experiment. The laser diode system is composed of three external cavity diode lasers and four injection diode lasers and a tapered amplifier. Four laser beams used for ^40K-^87Rb Rb cooling and repump lights are obtained by using acoustic optic modulators to offset the frequencies from the three external cavity diode lasers. Four light beams with different frequencies are injected into four slave lasers for injection locking. Then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration. This configuration is flexible and stable and can simultaneously produce the cooling and repump light for ^40K-^87Rb Rb trapping and cooling experiment.

关 键 词：简并费米气体 激光器系统 外腔光栅反馈半导体激光器 半导体激光放大器 

分 类 号：TN248.4[电子电信—物理电子学]