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Excess jitter accumulation in optical frequency shift keyed heterodyne regenerator chains due to non-negligible laser linewidth

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Abstract

Future long-haul fiber-optic communication networks are likely to use heterodyne detection techniques to realize a sensitivity improvement over present direct detection methods. Frequency shift eying (FSK) appears to be a particularly attractive modulation technique for such systems because of its ease of implementation relative to phase shift keying and its superior performance relative to amplitude shift keying.

© 1986 Optical Society of America

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