摘要
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.
源语言 | 英语 |
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文章编号 | 025503 |
期刊 | Journal of Optics (United Kingdom) |
卷 | 22 |
期 | 2 |
DOI | |
出版状态 | 已出版 - 2020 |
已对外发布 | 是 |