title: Phase-matching and Nonlinear Optical Processes in Silicon Waveguides.
abstract: The efficiency of four-wave-mixing arising from Raman and non-resonant nonlinear susceptibilities in silicon waveguides is studied in the 1.3 - 1.8microm regime. The wavelength conversion efficiency is dominated by the Raman contribution to the nonlinear susceptibility, and high conversion efficiencies can be achieved under the phase-matching condition. In this context, dispersion in silicon waveguides is analyzed and it is shown that phase-matching is achieved in properly engineered waveguides where birefringence compensates for material dispersion. Finally the sensitivity of the phase mismatch to fabrication-induced errors in waveguide dimensions is quantified.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Dimitropoulos
authors.forename: V
authors.initials: V
authors.lastname: Raghunathan
authors.forename: R
authors.initials: R
authors.lastname: Claps
authors.forename: B
authors.initials: B
authors.lastname: Jalali