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Proceedings Paper

Optimal input signal distribution and capacity for nondispersive nonlinear optical fiber channel at large signal to noise ratio
Author(s): I. S. Terekhov; A. V. Reznichenko; S. K. Turitsyn
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Paper Abstract

We consider a model nondispersive nonlinear optical fiber channel with additive Gaussian noise at large SNR (signal-to-noise ratio) in the intermediate power region. Using Feynman path-integral technique we find the optimal input signal distribution maximizing the channel’s per-sample mutual information. The finding of the optimal input signal distribution allows us to improve previously known estimates for the channel capacity. We show that in the intermediate power regime the per-sample mutual information for the optimal input signal distribution is greater than the per-sample mutual information for the Gaussian and half-Gaussian input signal distributions.

Paper Details

Date Published: 14 May 2018
PDF: 8 pages
Proc. SPIE 10684, Nonlinear Optics and its Applications 2018, 106840W (14 May 2018); doi: 10.1117/12.2307299
Show Author Affiliations
I. S. Terekhov, Budker Institute of Nuclear Physics SB RAS (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
A. V. Reznichenko, Budker Institute of Nuclear Physics SB RAS (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
S. K. Turitsyn, Aston Univ. (United Kingdom)
Budker Institute of Nuclear Physics SB RAS (Russian Federation)


Published in SPIE Proceedings Vol. 10684:
Nonlinear Optics and its Applications 2018
Benjamin J. Eggleton; Neil G. R. Broderick; Anna C. Peacock, Editor(s)

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