Open AccessPhase-sensitive frequency conversion of quadrature modulated signals
Author(s) -
R.P. Webb,
Mark Power,
Robert Manning
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.012713
Subject(s) - optics , four wave mixing , quadrature (astronomy) , nonlinear system , polarization (electrochemistry) , amplifier , signal (programming language) , orthogonal polarization spectral imaging , physics , optical amplifier , mixing (physics) , wavelength , nonlinear optics , phase (matter) , symbol rate , optoelectronics , bit error rate , computer science , telecommunications , laser , chemistry , cmos , quantum mechanics , programming language , channel (broadcasting)
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.