title: Dispersion compensation for an integrated optic grating coupler utilizing a transmission volume hologram.
abstract: In this paper we show the analysis and experimental results of using a volume holographic grating to increase the wavelength bandwidth over which light is coupled into a thin-film optical waveguide. Partial matching of the dispersion relationships of a hologram fabricated in dichromated gelatin with a waveguide/grating coupler etched in glass, show an increase in the full-width half-maximum wavelength (FWHM) bandwidth from approximately 0.25 nm to greater than 5 nm.
authors.forename: D L
authors.initials: DL
authors.lastname: Hetherington
authors.forename: R K
authors.initials: RK
authors.lastname: Kostuk
authors.forename: M C
authors.initials: MC
authors.lastname: Gupta