Title :
Cross-Polarization Modulation: Theory and Measurement in Subcarrier-Modulated WDM Systems
Author :
Phillips, Mary R. ; Woodward, Sheryl L. ; Smith, Robin L.
Author_Institution :
Northwestern Univ., Evanston, IL
Abstract :
Through cross-polarization modulation, a consequence of the nonlinear refractive index, the polarization state of a wavelength-division multiplexed (WDM) channel is modified by the power in other channels of the WDM system. The authors use a simple model to predict the time-averaged and time-varying parts of the polarization state for subcarrier-modulated optical channels and compare it to direct measurement of the time-varying state of polarization in a two- and three-channel WDM system. This model incorporates walk off of the channels due to group-velocity dispersion
Keywords :
nonlinear optics; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical modulation; refractive index; telecommunication channels; wavelength division multiplexing; WDM channel; cross-polarization modulation; group-velocity dispersion; nonlinear refractive index; optical channels; polarization state; subcarrier modulation; subcarrier-modulated systems; time-varying state; wavelength division multiplexing; Nonlinear optics; Optical modulation; Optical polarization; Optical refraction; Power system modeling; Predictive models; Refractive index; Time varying systems; Wavelength division multiplexing; Wavelength measurement; Fibers; Kerr effect; nonlinear optics; optical communications; polarization;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.883638
