Cross-polarization modulation: theory and measurement of a two-channel WDM system

The high-speed polarization change of a probe channel induced by the optical Kerr effect in a wavelength-division-multiplexed optical fiber link is measured using a polarimeter. The average and time-varying output polarization excursions (Stokes vector) are mapped on the Poincare/spl acute/ sphere and agree well with theoretical predictions.

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