Q-switching of waveguide lasers based on graphene/WS2 van der Waals heterostructure

被引：0
|
作者：
ZIQI LI [1 ]
CHEN CHENG [1 ]
NINGNING DONG [2 ]
CAROLINA ROMERO [3 ]
QINGMING LU [4 ]
JUN WANG [2 ]
JAVIER RODRíGUEZ VáZQUEZ DE ALDANA [3 ]
YANG TAN [1 ]
FENG CHEN [1 ]
机构：
[1] School of Physics, State Key Laboratory of Crystal Materials, Shandong University
[2] Key Laboratory of Materials for High-Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
[3] Laser Microprocessing Group, Facultad Ciencias, Universidad de Salamanca
[4] School of Chemistry and Chemical Engineering, Shandong University
来源：
Photonics Research | 2017年 / 05期
基金：
中国国家自然科学基金;
关键词：
WS; Q-switching of waveguide lasers based on graphene/WS2 van der Waals heterostructure; der;
D O I：
暂无
中图分类号：
TN248 [激光器];
学科分类号：
0803 ; 080401 ; 080901 ;
摘要：
We report on the operation of passively Q-switched waveguide lasers at 1 μm wavelength based on a graphene∕WS2heterostructure as a saturable absorber(SA). The gain medium is a crystalline Nd:YVO4cladding waveguide produced by femtosecond laser writing. The nanosecond waveguide laser operation at 1064 nm has been realized with the maximum average output power of 275 m W and slope efficiency of 37%. In comparison with the systems based on single WS2or graphene SA, the lasing Q-switched by a graphene∕WS2heterostructure SA possesses advantages of a higher pulse energy and enhanced slope efficiency, indicating the promisingapplications of van der Waals heterostructures for ultrafast photonic devices.
引用
收藏
页码：406 / 410
页数：5
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