Receiver optimization for 40-Gb/s optical duobinary signal

Abstract

Abstract-The optimized optical receiver for a 40-Gb/s optical duobinary signal is investigated by simulation. It is found, that by optimizing the optical filter and the electrical filter in the receiver, the sensitivity of the optical duobinary can be improved greatly; meanwhile, the high dispersion tolerance nature of the optical duobinary signal will not be degraded.Index Terms-Intersymbol interference, optical duobinary.