Implementation and Evaluation of Two 512-Tap Complex FIR Filter Architectures for Compensation of Chromatic Dispersion in Optical Networks

Sammanfattning: Filtering is an important part of digital processing, since the applications often require a change of features of a digital or analog signal. A digital filter is a device or a system that removes or alters certain parts of a signal. Optical fibers are used to transmit information over longer distances and at higher bandwidths than traditional copper cables. In order to enable high-rate transmission in optical communication systems, it is necessary to have a filter that compensates for chromatic dispersion in optic links, since the dispersion alters the signal in an unwanted way. This thesis presents the implementation and evaluation of two filter architectures, used in fiber-optic communication. The clock frequency of the implemented designs reaches 475 MHz, which results in a processing speed of 60 GS/s.