Ytterbium fiber laser based on first-order fiber Bragg gratings written with 400nm femtosecond pulses and a phase-mask

被引：56

作者：

Bernier, M. ^{[1
]}

Vallee, R. ^{[1
]}

Morasse, B. ^{[2
]}

Desrosiers, C. ^{[2
]}

Saliminia, A. ^{[1
]}

Sheng, Y. ^{[1
]}

机构：

[1] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1V 0A6, Canada

[2] CorAct Hightech Inc, Quebec City, PQ G2C 1S9, Canada

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 21期

基金：

加拿大自然科学与工程研究理事会;

关键词：

FABRICATION; LIGHT; NM;

D O I：

10.1364/OE.17.018887

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A Fiber Bragg grating of 369 nm pitch was inscribed in a germanium-free double-clad ytterbium doped silica fiber using a femtosecond pulse train at 400 nm wavelength and a phase mask. The photoinduced refractive index modulation of higher than 4x10(-3) was obtained and the accompanying photo-induced losses were subsequently removed by thermal annealing, resulting in a low loss (<0.1dB), stable and high reflectivity (>40dB) FBG. Based on this FBG, a monolithic Ytterbium fiber laser operating at 1073 nm with slope efficiency of 71% and output power of 13W was demonstrated. (C) 2009 Optical Society of America

引用

页码：18887 / 18893

页数：7

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