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Proceedings Paper

Ultrafast pulse erbium-doped fiber laser with a graphene/WS2 heterostructure saturable absorber
Author(s): Wenxiong Du; Heping Li; Cong Liu; Shengnan Shen; Changyong Lan; Chun Li; Yong Liu
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Paper Abstract

We report on ultrafast-pulse generation in an erbium-doped fiber ring laser mode-locked by a graphene/WS2 van der Waals heterostructure saturable absorber. Atomic-layered WS2 is first synthesized on SiO2/Si substrate by the chemical vapor deposition (CVD) method, and then graphene/WS2 heterostructure is fabricated by transferring graphene onto the CVD-grown layered WS2. Taking advantage of excellent saturable absorption properties of the fabricated graphene/WS2 heterostructure, stable soliton pulses are successfully generated in the laser with a 3-dB spectral width of 2.3 nm and a pulse duration of 1.12 ps. Numerical simulations reproduce the mode-locked pulse emission in the experiment. Our research provides a new insight for tailoring versatile two-dimensional heterostructures so as to develop ultrafast photonic applications.

Paper Details

Date Published:
PDF: 6 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104571M; doi: 10.1117/12.2284368
Show Author Affiliations
Wenxiong Du, Univ. of Electronic Science and Technology of China (China)
Heping Li, Univ. of Electronic Science and Technology of China (China)
Cong Liu, Univ. of Electronic Science and Technology of China (China)
Shengnan Shen, Univ. of Electronic Science and Technology of China (China)
Changyong Lan, Univ. of Electronic Science and Technology of China (China)
Chun Li, Univ. of Electronic Science and Technology of China (China)
Yong Liu, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

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