Comptes Rendus Physique

Quantum and nonlinearity limitations of the optical communication channel

E. Desurvire

Published Jan 1, 2003• 2 citations

Abstract

We analyze the information-capacity limitations of the optical communication channel, as determined by noise accumulation from optical amplification and nonlinear wave-mixing. We review the concepts of signal-to-noise ratio and entropy for binary-coded and continuous communications, leading to a definition of ultimate capacity for the optically-amplified channel. A unified quantum model, describing both amplification and nonlinearity limitations, makes possible to determine the power transmission window within which the channel capacity can be maximized.

DOI: 10.1016/s1631-0705(02)00002-6

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