title: Experimental demonstration of bandwidth enhancement based on two-pump wavelength conversion in a silicon waveguide.
abstract: We experimentally demonstrate the bandwidth enhancement of wavelength conversion in a silicon waveguide based on four-wave mixing (FWM) with two continuous-wave pumps. Our measurement results show 25% bandwidth improvement from 29.8 nm to 37.4 nm in a 17-mm-long silicon waveguide with a pump spacing of 14.9 nm as compared to a single-pump FWM. The experimental results are verified by theoretical calculations and >40% bandwidth enhancement is predicted by further wavelength separation of the two pumps.
authors.affiliation: Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou, China. gaosm@zju.edu.cn
authors.forename: Shiming
authors.initials: S
authors.lastname: Gao
authors.forename: En-Kuang
authors.initials: EK
authors.lastname: Tien
authors.forename: Yuewang
authors.initials: Y
authors.lastname: Huang
authors.forename: Sailing
authors.initials: S
authors.lastname: He
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*
chemical_list: D012825:Silicon