Fabrication of chirped and tilted fiber Bragg gratings and suppression of stimulated Raman scattering in fiber amplifiers

被引：71

作者：

Wang, Meng ^{[1
]}

Zhang, Yujing ^{[1
]}

Wang, Zefeng ^{[1
,2
,3
]}

Sun, Junjie ^{[1
]}

Cao, Jianqiu ^{[1
,2
,3
]}

Leng, Jinyong ^{[1
,2
,3
]}

Gu, Xijia ^{[4
]}

Xu, Xiaojun ^{[1
,2
,3
]}

机构：

[1] Natl Univ Def Technol, Coll Optoelect Sci & Engn, Changsha 410073, Hunan, Peoples R China

[2] Hunan Prov Collaborat Innovat Ctr High Power Fibe, Changsha 410073, Hunan, Peoples R China

[3] Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China

[4] Ryerson Univ, Dept Elect & Comp Engn, Toronto, ON M5B 2K3, Canada

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 02期

基金：

美国国家科学基金会;

关键词：

CLADDING-MODE RESONANCES; REJECTION FILTERS; LASERS; SENSORS;

D O I：

10.1364/OE.25.001529

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Stimulated Raman scattering (SRS) is one of the main limits for fiber lasers further power scaling. We report on the suppression of the stimulated Raman scattering in fiber laser amplifier using chirped and tilted fiber Bragg gratings (CTFBGs) for the first time. In this paper, we design and fabricate a CTFBG used to suppress the SRS in 1090 nm fiber laser output, and establish a system to test the effect of suppression. A maximum suppression ratio nearly 25 dB is achieved. Experimental results demonstrate that CTFBGs can increase the Raman threshold and promote the slope efficiency of the whole system, which is significant for further power scaling in high power oscillators and amplifiers. (C) 2017 Optical Society of America

引用

页码：1529 / 1534

页数：6

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