光学学报, 2004, 24 (9): 1237, 网络出版: 2006-06-12
利用光纤光栅的高功率掺镱光纤激光器
High-Power Ytterbium-Doped Fiber Laser Based on Fiber Grating
摘要
报道了利用一对光纤光栅作为双包层Yb3+掺杂光纤激光器的谐振腔,激光二极管光纤模块(LD)进行了抽运,并采用锥形光纤实现了全光纤化结构,获得了高功率双包层光纤激光器。光纤光栅通常是用融接技术实现与双包层光纤的一体化连接的,采用的双包层光纤为内包层为梅花瓣形结构的掺Yb3+离子的石英光纤,采用的抽运源为中心波长为970 nm的半导体激光光纤输出模块,在抽运源电流达到2.4 A时,获得了10.8 W的光纤激光器单横模输出,输出波长1100.5 nm,峰值半峰全宽(FWHM)为0.54 nm,激光器斜效率为59%。
Abstract
A double-clad Yb3+ doped fiber laser is made when choosing fiber grating as resonator and pumped by LD fiber-coupled modules, with tapered fiber to get all-fiber structure. Fusion is often adopted to incorporate the fiber grating with the double-clad fiber, and the inner-cladding shape of double-clad fiber (DCF) is quasi-circular shape of Yb3+-doped silica fiber with 970 nm center wavelength of fiber output modules as pump source. When the current of pump source is 2.4 A, the single-tranverse-mode output with max output power of 10.8 W is obtained with FWHM of 0.54 nm at output wavelength of 1100.5 nm, and the slope efficiency of 59% is observed.
潘玉寨, 张军, 胡贵军, 张亮, 刘云, 王立军. 利用光纤光栅的高功率掺镱光纤激光器[J]. 光学学报, 2004, 24(9): 1237. 潘玉寨, 张军, 胡贵军, 张亮, 刘云, 王立军. High-Power Ytterbium-Doped Fiber Laser Based on Fiber Grating[J]. Acta Optica Sinica, 2004, 24(9): 1237.