Frequency stabilization in FBG external cavity semiconductor laser based on acetylene absorption method  

作　　者：Li Zhi-quan Su Feng-yan Kang Li-li 

机构地区：[1]College of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China

出　　处：《Optoelectronics Letters》2008年第5期335-338,共4页光电子快报（英文版）

基　　金：National Natural Science Foundation of China (No.60377002)

摘　　要：A frequency-stabilized 1.53 μm FBG external-cavity semiconductor laser by using acetylene absorption is presented and its basic principles are introduced. Graded refractive index fiber and pigtailed fiber are used in the absorption air chamber to enhance the coupling stability. The impact of the background power is eliminated by using the third-harmonic mode-locking technique. A lock-in amplifier is utilized to ensure that the output laser wavelength is locked at the C2H2 absorption line of 1530.37 nm. The frequency stability reaches 10-8 within 24 h.

关 键 词：稳频 激光器 半导体 乙炔吸收 

分 类 号：TN248.4[电子电信—物理电子学]