Enhanced four-wave mixing with MoS2 on a silicon waveguide

MoS2 is a layered quasi-2D material that can enhance effective third-order optical nonlinearity of waveguides. In this paper, we measured the optical loss of MoS2 on silicon waveguides and compared the conversion efficiencies of four-wave mixing (FWM) in silicon waveguides with and without MoS2 on t...

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Bibliographic Details
Published in:	Journal of optics (2010) 2020-02, Vol.22 (2)
Main Authors:	Zhang, Yaojing, Tao, Li, Yi, Dan, Xu, Jian-Bin, Tsang, Hon Ki
Format:	Article
Language:	eng
Subjects:	four-wave mixing Kerr coefficient MoS
Online Access:	Get full text
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Summary:	MoS2 is a layered quasi-2D material that can enhance effective third-order optical nonlinearity of waveguides. In this paper, we measured the optical loss of MoS2 on silicon waveguides and compared the conversion efficiencies of four-wave mixing (FWM) in silicon waveguides with and without MoS2 on the top cladding. Hybrid integration of the few-layer MoS2 produced about 4 dB enhancement in the idler output of FWM. The Kerr coefficient of MoS2 was obtained as (2.7 0.2) × 10−16 m2 W−1. The refractive index of MoS2 was obtained from the characteristics of grating couplers.
ISSN:	2040-8978 2040-8986