A stable 2 μm passively Q-switched fiber laser based on nonlinear polarization evolution

被引：15
作者：
He, X. [1 ,2 ,3 ,4 ]
Luo, A. [5 ]
Lin, W. [1 ,2 ,4 ]
Yang, Q. [1 ,2 ,3 ,4 ]
Yang, T. [1 ,2 ,3 ,4 ]
Yuan, X. [1 ,2 ,3 ,4 ]
Xu, S. [1 ,2 ,4 ]
Xu, W. [5 ]
Luo, Z. [5 ]
Yang, Z. [1 ,2 ,3 ,4 ]
机构：
[1] S China Univ Technol, Inst Opt Commun Mat, Guangzhou 510640, Guangdong, Peoples R China
[2] S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China
[3] S China Univ Technol, Sch Sci, Guangzhou 510640, Guangdong, Peoples R China
[4] Special Glass Fiber & Device Engn Technol Res & D, Guangzhou 510640, Guangdong, Peoples R China
[5] S China Normal Univ, Sch Informat & Optoelect Sci & Engn, Lab Nanophoton Funct Mat & Devices, Guangzhou 510006, Guangdong, Peoples R China
来源：
LASER PHYSICS | 2014年 / 24卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Q-switching; fiber laser; nonlinear polarization evolution; mode-locked; SATURABLE ABSORBER; MODE-LOCKING; GRAPHENE;
D O I：
10.1088/1054-660X/24/8/085102
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A passively Q-switched thulium-doped fiber (TDF) laser based on the nonlinear polarization evolution technique was demonstrated with the central wavelength of 1898.4 nm. With the increasing pump power, the pulse repetition frequency of the Q-switched TDF laser from 87.6 to 110.1 kHz was achieved, while the corresponding pulse duration was changed from 1171 to 785.7 ns. The power instability of the TDF laser was measured to be about +/- 1.5% during 8 h. In addition, the mode-locked phenomenon was also observed in our all-fiber TDF laser by carefully adjusting the polarization controllers.
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页数：5
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