Passively mode-locked and Q-switched Yb-doped fiber lasers with graphene-based saturable absorber - 文章详情页

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摘要：

A　graphene-based　passively　mode-locked　and　passively　Q-switched　Yb-doped　fiber　laser　is　reported.　Stable　mode-locked　pulse　train　occurres　at　about　1.2　W　incident　pump　power　and　the　pulse　repetition　rate　is　1.04　MHz　in　a　ring　cavity　configuration;　increasing　the　incident　pump　power　to　2.3　W,　the　pulse　width　is　measured　to　be　about　680　ps　and　the　output　power　is　170　mW,　which　corresponds　to　single　pulse　energy　of　163　nJ.　Graphene-based　passively　Q-switched　operation　is　also　demonstrated　with　pulse　width　of　70　ns　and　maximum　output　power　of　12　mW　in　a　linear　cavity　configuration,　which　corresponds　to　single　pulse　energy　of　46　nJ.　The　repetition　rate　is　tunable　from　140　to　257　kHz　along　with　the　increase　of　the　pump　power.

关键词：

Q switching High energy lasers Passive mode locking Saturable absorbers Graphene Mode-locked fiber lasers Optical pumping Pulse repetition rate Fiber lasers Lasers

作者机构：

[ 1 ] [Liu, Jiang]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Wu, Sida]School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
[ 3 ] [Wang, Ke]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Cao, Yi]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Yang, Quanhong]School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
[ 6 ] [Wang, Pu]Institute of Laser Engineering, Beijing University of Technology, Beijing 100124, China

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wangpuemail@bjut.edu.cn

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