All-fiber ultra-narrow linewidth 50 pm Tm3+-doped double-clad fiber laser at 1948 nm

被引：4

作者：

Jing, T. ^{[1
]}

Zhang, Y. J. ^{[2
]}

Zhong, F. F. ^{[2
]}

机构：

[1] Quanzhou Normal Univ, Dept Sci & Technol Educ, Quanzhou 362000, Peoples R China

[2] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150006, Peoples R China

来源：

LASER PHYSICS | 2011年 / 21卷 / 01期

关键词：

HIGH-POWER;

D O I：

10.1134/S1054660X10230179

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A high stability all-fiber LD-clad-pumped Tm3+-doped fiber laser was reported. The fiber laser had the ultra-narrow linewidth 50 pm at 1.948 mu m with the maximal output power of 12.8 W. The slope efficiency was 28.9%, and threshold was 5.7 W. The double-clad Tm3+-doped fiber core was multi-mode, which had a demission of 25/250 mu m with the core NA of 0.1 and inner-clad NA of 0.46. The high reflectivity coupler FBG was directly written into the single-mode passive photosensitive optical fiber core, which had a core diameter of 15 mu m and NA of 0.1. The cavity was build-up by the high reflectivity FBG and the output fiber end Fresnel reflectivity.

引用

页码：169 / 171

页数：3

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