title: Phase-sensitive frequency conversion of quadrature modulated signals.
abstract: Two mechanisms that can make frequency conversion based on nonlinear mixing dependent on the phase of the input signal are identified. A novel phase-to-polarization converter that converts the orthogonal phase components of an input signal to two orthogonally polarized outputs is proposed. The operation of this scheme and a previously reported scheme at an increased symbol rate are simulated with semiconductor optical amplifiers (SOAs) as the nonlinear devices. Experimental results demonstrate the effectiveness of SOAs for nonlinear mixing over a wide range of wavelengths and difference frequencies and confirm the accuracy of the numerical model.
authors.affiliation: Tyndall National Institute & Department of Physics, University College Cork, Lee Maltings, Cork, Ireland. rod.webb@tyndall.ie
authors.forename: R P
authors.initials: RP
authors.lastname: Webb
authors.forename: M
authors.initials: M
authors.lastname: Power
authors.forename: R J
authors.initials: RJ
authors.lastname: Manning
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods*; D020349:Surface Plasmon Resonance / Q000295:instrumentation* / Q000379:methods*; D013685:Telecommunications / Q000295:instrumentation*