Digital optical receiver for cable television systems

This invention relates in general to fiber optic communications, and more particularly to optical receivers for use in fiber optic communication systems. A cable television system () includes a transmitter () for generating a digital optical signal and a receiver () for receiving such digital optical signal and converting it to an analog signal. The receiver () includes a digital filter () disposed between a deserializer () and a digital-to-analog converter (), which digital filter conditions the digital electrical signal received from the deserializer (). 1o The digital filter () is employed as a digital noise mitigation block so as to improve the quality of the signals in the reverse path, returning to the cable television system () headend ().