Author/Authors :
Desurvire، نويسنده , , Emmanuel، نويسنده ,
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. To cite this article: E. Desurvire, C. R. Physique 4 (2003).
Keywords :
entropy , Information theory , optical communications , dispersion , four-wave mixing , fiber dispersion , optical fibers , Fiber Nonlinearity , Equivocation , Equivocation , Nonlinear Schr?dinger equation , Entropie , Wavelength-division multiplexing , Quantum noise , mélange à quatre ondes , Erbium-doped fiber amplifiers , Distributed amplification , Shannon–Hartley theorem , All-optical regeneration , Communications optiques , Fibres optiques , Amplificateurs à fibre dopée à lיerbium , Amplification distribuée , Bruit quantique , Théorie de lיinformation , Théorème de Shannon–Hartley , Equation de Schr?dinger non-linéaire , Nonlinéarité des fibres , Multiplexage en longueur dיonde , Régénération tout-optique
