Open AccessBroadband parametric frequency comb generation with a 1-μm pump source
Author(s) -
Kasturi Saha,
Yoshitomo Okawachi,
Jacob S. Levy,
Ryan K. W. Lau,
Kevin Luke,
Mark A. Foster,
Michal Lipson,
Alexander L. Gaeta
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.026935
Subject(s) - optics , frequency comb , four wave mixing , dispersion (optics) , broadband , resonator , materials science , wavelength , parametric statistics , supercontinuum , laser , nonlinear optics , optoelectronics , physics , photonic crystal fiber , statistics , mathematics
We report the first experimental demonstration of broadband frequency comb generation from a single-frequency pump laser at 1-μm using parametric oscillation in a high-Q silicon-nitride ring resonator. The resonator dispersion is engineered to have a broad anomalous group velocity dispersion region near the pump wavelength for efficient parametric four-wave mixing. The comb spans 55 THz with a 230-GHz free spectral range. These results demonstrate the powerful advantage of dispersion engineering in chip-based devices for producing combs with a wide range of pump wavelengths.