New edge detector for CMI optical fiber transmission with improved jitter tolerance

Abstract

A new edge detecting scheme for coded mark inversion (CMI) line codes which can reject wrong slot errors is proposed. this edge detecting scheme looks at data transitions over one-hand-a-half symbol durations and makes a binary decision based on the most likely transition pattern. An analysis and measurement results of the bit error rate performance of this detecting scheme over an optical fiber link are presented which show improvements in the detector tolerance against symbol timing jitters.