title: Chip-scale dispersion engineering using chirped vertical gratings.
abstract: A strongly coupled, chirped Bragg grating made by sinusoidally modulating the sidewalls of a silicon waveguide is designed, fabricated, and experimentally characterized. By varying the device parameters, the operating wavelength, device bandwidth, sign (normal or anomalous), and magnitude of group-velocity dispersion may be engineered for specific photonic applications. Asymmetric Blackman apodization is best suited for maximizing the useable bandwidth while providing good ripple suppression. Dispersion values up to 7.0 x 10(5) ps/nm/km are demonstrated at 1.55 microm.
authors.affiliation: Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, CA 92093-0409, USA. thtan@ucsd.edu
authors.forename: D T H
authors.initials: DT
authors.lastname: Tan
authors.forename: K
authors.initials: K
authors.lastname: Ikeda
authors.forename: R E
authors.initials: RE
authors.lastname: Saperstein
authors.forename: B
authors.initials: B
authors.lastname: Slutsky
authors.forename: Y
authors.initials: Y
authors.lastname: Fainman