Double-clad Tm3+-doped silica fiber laser with Bragg grating inscribed directly into active core by femtosecond laser

被引：10
|
作者：
Song, C. W. [1 ]
Zhang, Y. J. [2 ]
Yao, B. Q. [2 ]
Wang, Y. [1 ]
Wang, W. [2 ]
Ju, Y. L. [2 ]
Wang, Y. Z. [2 ]
机构：
[1] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China
来源：
LASER PHYSICS | 2009年 / 19卷 / 05期
关键词：
PHASE MASK; NARROW-LINEWIDTH; OPTICAL-FIBERS; MULTIMODE; INSCRIPTION; RADIATION;
D O I：
10.1134/S1054660X09050211
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report for the first time to inscribe the Fiber Bragg Grating (FBG) in Tm3+-doped multimode double-clad silica fiber by 800 nm femtosecond laser with a phase mask. The 1.35 mu m period Bragg grating is written into the fiber core, which is responded to the laser center wavelength located at nearly 1960 nm. Continuous wave total output power of 11.5 W is obtained under the launched pump power of 29.8 W, corresponding to a slope efficiency of 45.0% and a conversion efficiency of 38.6%.
引用
收藏
页码：1009 / 1012
页数：4
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