Photonics Research, 2018, 6 (10): 10000965, Published Online: Sep. 25, 2018
High-efficiency and broadband four-wave mixing in a silicon-graphene strip waveguide with a windowed silica top layer Download: 828次
Abstract
We experimentally demonstrate high-efficiency and broadband four-wave mixing in a silicon-graphene strip waveguide. A four-wave mixing conversion efficiency of 38.7 dB and a 3-dB conversion bandwidth of 35 nm are achieved in the silicon-graphene strip waveguide with an optimized light-graphene interaction length of 60 μm. The interaction length is controlled by a windowed area of silica layer on the silicon waveguide. Numerical simulations and experimental studies are carried out and show a nonlinear parameter γ GOS as large as 10 4 W 1 · m 1 .
Yuxing Yang, Zhenzhen Xu, Xinhong Jiang, Yu He, Xuhan Guo, Yong Zhang, Ciyuan Qiu, Yikai Su. High-efficiency and broadband four-wave mixing in a silicon-graphene strip waveguide with a windowed silica top layer[J]. Photonics Research, 2018, 6(10): 10000965.