Electronic equalizations for optical fiber dispersion compensation

This paper presents complete models for various fiber dispersions and their mitigations using electronic equalizers. A novel constant-modulus-adaptive (CMA) blind equalization technique is proposed for fiber dispersion compensation. Simulations demonstrated effective compensation means for chromatic and polarization mode dispersions using least-mean-square (LMS) and CMA blind equation techniques. Also proposed is the adaptive fiber transceiver architecture with eye-open-detect circuits that can be used to provide the feedback controls for adaptive thresholds and high-speed analog equalizers.