Watt-level passively Q-switched double-cladding fiber laser based on graphene oxide saturable absorber

被引：18

作者：

Yu, Zhenhua ^{[1
,2
]}

Song, Yanrong ^{[1
,2
]}

Dong, Xinzheng ^{[1
,2
]}

Li, Yanlin ^{[1
,2
]}

Tian, Jinrong ^{[1
,2
]}

Wang, Yonggang ^{[3
]}

机构：

[1] Beijing Univ Technol, Inst Informat Photon Technol, Beijing 100124, Peoples R China

[2] Beijing Univ Technol, Coll Appl Sci, Beijing 100124, Peoples R China

[3] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China

来源：

APPLIED OPTICS | 2013年 / 52卷 / 29期

基金：

中国国家自然科学基金;

关键词：

MODE-LOCKING;

D O I：

10.1364/AO.52.007127

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A watt-level passively Q-switched ytterbium-doped double-cladding fiber laser with a graphene oxide (GO) absorber was demonstrated. The structure of the GO saturable absorber mirror (GO-SAM) was of the sandwich type. A maximum output power of 1.8 W was obtained around a wavelength of 1044 nm. To the best of our knowledge, this is the highest output power in Q-switched fiber lasers based on a GO saturable absorber. The pure GO was protected from the oxygen in the air so that the damage threshold of the GO-SAM was effectively raised. The gain fiber was a D-shaped ytterbium-doped double-cladding fiber. The pulse repetition rates were tuned from 120 to 215 kHz with pump powers from 3.89 to 7.8 W. The maximum pulse energy was 8.37 mu J at a pulse width of 1.7 mu s. (c) 2013 Optical Society of America

引用

页码：7127 / 7131

页数：5

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