Large-Mode-Area Double-Cladding Photonic Crystal Fiber Laser in the Watt Range at 980nm  

作　　者：LI Ping-Xue ZHANG Xue-Xia LIU Zhi CHI Jun-Jie 李平雪;张雪霞;刘志;池俊杰(Institute of Laser Engineering,Beijing University of Technology,Beijing 100124)

机构地区：[1]Institute of Laser Engineering,Beijing University of Technology,Beijing 100124

出　　处：《Chinese Physics Letters》2011年第8期119-121,共3页中国物理快报（英文版）

基　　金：by the Nova Program(2007B013).

摘　　要：We report on a quasi-three-level large-mode-area double-clad Yb-doped fiber laser that adopts a linear cavity consisting of a 0°fiber end and a cavity mirror.Two kinds of Yb−doped photonic crystal fiber(PCF)with different inner-clads(170µm and 200µm)and absorption coefficients(4.5 dB/m and 3 dB/m)are used as the gain media.By optimizing the structure and elements of the cavity,maximum output powers of 1.24 W and 1.1 W were yielded with optical conversion efficiencies of 7.8%and 6.8%when the fiber lengths were 25 cm and 40 cm with 170µm and 200µm inner-claddings,respectively.

关 键 词：FIBER CRYSTAL CAVITY 

分 类 号：TN2[电子电信—物理电子学]