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
收藏
页码：7127 / 7131
页数：5
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