外文题目: Q-switching of waveguide lasers based on graphene/WS2 van der Waals heterostructure
作者: Li, Ziqi; Cheng, Chen; Dong, Ningning; Romero, Carolina; Lu, Qingming; Wang, Jun; Vazquez de Aldana, Javier Rodriguez; Tan, Yang; Chen, Feng
刊名: Photonics Res.
年: 2017 卷: 5 期: 5 页： 406--410
英文关键词:

TRANSITION-METAL DICHALCOGENIDES; FEMTOSECOND LASER; SATURABLE ABSORBER; PULSE GENERATION; TUNGSTEN DISULFIDE; BLACK PHOSPHORUS; FIBER LASER; WS2; ELECTRONICS; FABRICATION
英文摘要:
We report on the operation of passively Q-switched waveguide lasers at 1 mu m wavelength based on a graphene/WS2 heterostructure as a saturable absorber (SA). The gain medium is a crystalline Nd:YVO4 cladding 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 mW and slope efficiency of 37%. In comparison with the systems based on single WS2 or graphene SA, the lasing Q-switched by a graphene/WS2 heterostructure SA possesses advantages of a higher pulse energy and enhanced slope efficiency, indicating the promising applications of van der Waals heterostructures for ultrafast photonic devices.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/PRJ.5.000406


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