Gold nanorod as saturable absorber for Q-switched Yb-doped fiber laser

被引：44
|
作者：
Wang, Xu-De [1 ,2 ]
Luo, Zhi-Chao [1 ]
Liu, Hao [1 ]
Zhao, Nian [1 ]
Liu, Meng [1 ]
Zhu, Yan-Fang [4 ]
Xue, Jian-Ping [4 ]
Luo, Ai-Ping [1 ,3 ]
Xu, Wen-Cheng [1 ]
机构：
[1] S China Normal Univ, Sch Informat & Optoelect Sci & Engn, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China
[2] Huaibei Normal Univ, Sch Phys & Elect Informat, Huaibei 235000, Anhui, Peoples R China
[3] S China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Guangzhou 510640, Guangdong, Peoples R China
[4] Huaibei Normal Univ, Sch Life Sci, Huaibei 235000, Anhui, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2015年 / 346卷
基金：
中国国家自然科学基金;
关键词：
Q-switched; Gold nanorod; Seed-mediated method; Fiber laser; TOPOLOGICAL INSULATOR BI2SE3; CARBON NANOTUBES; MOS2; ABSORPTION; DYNAMICS; FILM;
D O I：
10.1016/j.optcom.2015.02.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We reported on the generation of Q-switched pulse in an Yb-doped fiber laser by using a filmy polyvinyl alcohol (PVA)-based gold nanorods (GNRs) saturable absorber (SA). The GNRs are synthesized through seed-mediated method whose longitudinal surface plasmon resonance (SPR) absorption peak is located at 1038 nm. The modulation depth of the GNRs SA is similar to 4.06%. By gradually increasing the pump power from 62 mW to 128 mW, the repetition rate of Q-switched pulse increases from 8.78 kHz to 20.78 kHz and the pulse duration decreases from 9.43 mu s to 3.65 mu s. In addition, the dual-wavelength switchable Q-switched operation was also observed. The obtained results further expand the applications of GNRs SA to the field of Q-switched pulsed fiber lasers at 1.0 mu m waveband. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：21 / 25
页数：5
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