Improved large-mode-area Bragg fiber  

作　　者：闫培光 赵健 阮双琛 赵俊清 杜戈果 韦会峰 李相 陈胜平 

机构地区：[1]College of Electronic Science and Technology, Shenzhen University [2]Yangtze Optical Fiber and Cable Company Ltd Research Center [3]College of Optoelectric Science and Engineering, National University of Defense Technology

出　　处：《Chinese Optics Letters》2011年第6期28-30,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 61007054 and 10904173);the Natural Science Foundation of Guangdong Province(No. 9451806001002428);the Science Technology Program of Shenzhen City (No. 200718)

摘　　要：A novel large-mode-area Bragg fiber （BF） is proposed for selectively suppressing the amplified spontaneous emission （ASE） of Yb. Confinement loss can be effectively lowered by adding a layer of F-doped glass near the core of this fiber. The BF can achieve effective suppression of ASE of Yb when the bend radius is 0.15 m at wavelength lower than 1.13 μm in theory, and eliminate LP 11 mode in mode competition in wavelength range of 1.15 1.2 μm.A novel large-mode-area Bragg fiber （BF） is proposed for selectively suppressing the amplified spontaneous emission （ASE） of Yb. Confinement loss can be effectively lowered by adding a layer of F-doped glass near the core of this fiber. The BF can achieve effective suppression of ASE of Yb when the bend radius is 0.15 m at wavelength lower than 1.13 μm in theory, and eliminate LP 11 mode in mode competition in wavelength range of 1.15 1.2 μm.

关 键 词：Bragg cells YTTERBIUM 

分 类 号：TN253[电子电信—物理电子学]