掺镱(Yb^(3+))双包层光纤激光器实验研究  

Experimental Study of Yb-doped Double-clad Fiber Laser

作　　者：方刚[1,2] 徐向涛[1,2] 全恩臣 戴特力[1,2] 张鹏[1,2] 

机构地区：[1]重庆师范大学物理与电子工程学院 [2]重庆市高校光学工程重点实验室,重庆400047

出　　处：《重庆师范大学学报（自然科学版）》2014年第2期80-83,共4页Journal of Chongqing Normal University:Natural Science

基　　金：重庆市自然科学基金(No.cstcjja40029);重庆师范大学博士启动基金(No.11XLB014)

摘　　要：光纤激光器具有转换效率高、光束质量好、散热方便、结构紧凑等优点,是高功率激光器领域的研究热点。本文设计了温控、水冷系统使半导体激光二极管泵浦源稳定在工作波长。通过设计的包层泵浦功率剥除器,有效地剥离了未被掺镱(Yb3+)双包层光纤吸收的泵浦光。采用20 W的半导体二极管激光器作为泵浦源,5 m长掺镱(Yb3+)双包层光纤作为增益介质,光纤光栅作为腔镜,在泵浦功率为19 W时,获得10.42 W的激光输出,激光波长1 062 nm,光-光转换效率约54.8%。Fiber lasers combines advantages of high conversion efficiency, good beam quality, convenient cooling and compact config- uration, and has been studied extensively. A temperature-controlled cooler is designed to make the pumping source stable at working wavelength, and a power-stripper is used to strip the unabsorbed pumping from the ytterbium-dolSed double-clad fiber. 10.42 W output power is obtained with 19 W pumping, 5 m ytterbium-doped double-clad fiber gain medium and a fiber grating as the end mirror. The laser wavelength is 1 062 nm, and the optical-to-optical conversion efficiency is about 54.8%.

关 键 词：光纤激光器 双包层光纤 掺镱(Yb3+) 

分 类 号：TN248.1[电子电信—物理电子学]