Measurement and tuning of the chromatic dispersion of a silicon photonic wire around the half band gap spectral region

François Leo, Utsav Dave, Shahram Keyvaninia, Bart Kuyken, Gunther Roelkens
2014 Optics Letters  
We demonstrate the measurement and tuning of second-to-fourth order dispersion of a silicon wire waveguide in a spectral region of low nonlinear losses. Using white light interferometry we extract the chromatic dispersion of our waveguide from 1950 nm to 2300 nm. Moreover we demonstrate tuning of the zero dispersion wavelength over more than 100 nm, pushing it to longer wavelength by partially underetching the waveguide.
doi:10.1364/ol.39.000711 pmid:24487906 fatcat:wsisn7odijegrc6o24nfqcp4be