Graphene-Oxide-Based Q-Switched Fiber Laser with Stable Five-Wavelength Operation  

作　　者：ZHAO Jun-Qing WANG Yong-Gang YAN Pei-Guang RUAN Shuang-Chen CHENG Jian-Qun DU Ge-Guo YU Yong-Qin ZHANG Ge-Lin WEI Hui-Feng LUO Jie Yuen H.Tsang 赵俊清;王勇刚;闫培光;阮双琛;成建群;杜戈果;于永芹;张格霖;韦会峰;罗杰;Yuen H.Tsang(Shenzhen Key Laboratory of Laser Engineering,College of Electronic Science and Technology,Shenzhen University,Shenzhen 518060;Department of Applied Physics,Hong Kong Polytechnic University,Hong Kong,China;State Key Laboratory of Optical Fiber and Cable Manufacture Technology,Yangtze Optical Fiber and Cable Company Ltd.R&D Center,Wuhan 430073)

机构地区：[1]Shenzhen Key Laboratory of Laser Engineering,College of Electronic Science and Technology,Shenzhen University,Shenzhen 518060 [2]Department of Applied Physics,Hong Kong Polytechnic University,Hong Kong,China [3]State Key Laboratory of Optical Fiber and Cable Manufacture Technology,Yangtze Optical Fiber and Cable Company Ltd.R&D Center,Wuhan 430073

出　　处：《Chinese Physics Letters》2012年第11期81-84,共4页中国物理快报（英文版）

基　　金：Supported by the National Key Basic Research and Development Program of China(No 2010CB735904);NSFC(No 61007054);Doctoral Program of High School Research Fund(No 20104408110002);the Improvement and Development Project of Shenzhen Key Lab(No CXB201005240014A);the Science and Technology Project of Shenzhen City(No JC201105170693A);the Key Program of Basic Research Project of Shenzhen(No JC201005250048A);the Applied Technology Developmental Project of Shenzhen University(No 201221);the Research Grants Council of Hong Kong,China(No GRF PolyU 526511).

摘　　要：We demonstrate an erbium-doped ring-cavity fiber laser Q-switched by a graphene oxide-based saturable absorber(GOSA).The GOSA was fabricated by vertically evaporating GO-polyvinylalcohol(GO/PVA)composite dispersion,and has a good performance under room temperature.Utilizing a specially fabricated fiber Bragg grating(FBG),stable five-wavelength lasing is realized and stabilized at different pump powers under any polarization.When the pump power increases from 78.4 mW to 379.3 mW,the output power ranging from 1.9 mW to 16.6 mW could be obtained,with pulse duration from 6.8μs to 2.72μs,single pulse energy from 123.73 nJ to 229.74 nJ,and pulse repetition rate from 15.36 kHz to 72.25 kHz.To the best of our knowledge,it is the first simultaneous realization of five-wavelength operation and pulse output in a GO Q-switched all fiber laser system.

关 键 词：PUMP fiber SWITCHED 

分 类 号：TN2[电子电信—物理电子学]