提高二极管激光阵列外腔锁相效率的实验研究  

Increasing output power of a phase locking diode laser array

作　　者：张雪[1] 赵鹏飞[2] 李强[1] 刘波[1] 马建军[1] 

机构地区：[1]北京工业大学国家产学研激光技术研究中心,北京100022 [2]中国科学院半导体研究所,北京100083

出　　处：《激光与红外》2009年第8期855-857,共3页Laser & Infrared

基　　金：国家自然科学基金课题(No.10276003);北京市自然科学基金重点课题(No.4051001)资助

摘　　要：采用1/4 Talbot外腔实现宽条二极管激光阵列的锁相,在工作电流是35 A时,获得7.56 W的锁相输出功率,输出光束的远场图像是多瓣结构,锁相前后输出光的光谱宽度从2.0 nm压缩到0.2 nm。腔内插入焦距大约为5倍腔长的柱透镜,在相同电流下获得8.75 W的锁相输出功率,输出光的远场图像是多瓣结构,输出超模的数目有所减少,能量向中部集中,输出光的光谱宽度是0.2 nm。Phase locking of a wide aperture diode laser array was achieved with a 1/4 Talbot cavity. Output power of 7.56 W was obtained at an injection current of 35 A, responding to several lobes in the far-field pattern, and the spectrum was narrowed from 2.0 nm to 0. 2 nm. Increasing output power was demonstrated by inserting a cylindrical lens, whose focal distance was 5 multiple of cavity length under the same condition, and the far-field pattern was also multilobes responding to output power of 8.75 W, and the spectrum of the output radiation was 0.2 nm.

关 键 词：二极管激光阵列 外腔 锁相 

分 类 号：TN248[电子电信—物理电子学]