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arXiv · 1602.03182

Ultimate Capacity of a Linear Time-Invariant Bosonic Channel

Bhaskar Roy Bardhan·Jeffrey H. Shapiro
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Abstract

We determine the ultimate classical information capacity of a linear time-invariant bosonic channel with additive phase-insensitive Gaussian noise. This channel can model fiber-optic communication at power levels below the threshold for significant nonlinear effects. We provide a general continuous-time result that gives the ultimate capacity for such a channel operating in the quasimonochromatic regime under an average power constraint. This ultimate capacity is compared with corresponding results for heterodyne and homodyne detection over the same channel.

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Bhaskar Roy Bardhan, Jeffrey H. Shapiro. 2016-02-09. Ultimate Capacity of a Linear Time-Invariant Bosonic Channel. https://doi.org/10.1103/physreva.93.032342

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