Abstract
Clock recovery, the generation of a pulse train synchronous with an input digital data stream, is a critical process in digital communication systems. There are many proposed and implemented clock-recovery schemes for high-data-rate optical communication systems.1,2 All of them assume some prior knowledge about the transmitted bit rate, and the recovery processes consist of either a precise determination of the phase of the clock or a fine tuning of the clock repetition frequency.
© 1995 Optical Society of America
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