Data capacity scaling of a distributed Rydberg atomic receiver array

The data transfer capacity of a communication channel is limited by the Shannon-Hartley theorem and scales as \(\text{log}_2(1 + \text{SNR})\) for a single channel with the power signal-to-noise ratio (SNR). We implement an array of atom-optical receivers in a single-input-multi-output (SIMO) config...

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Bibliographic Details
Published in:arXiv.org 2021-04
Main Authors: Otto, J Susanne, Hunter, Marisol K, Kjærgaard, Niels, Deb, Amita B
Format: Article
Language:English
Subjects:
Antenna arrays
Channel capacity
Configurations
Data transfer (computers)
Light beams
Optical receivers
Receivers
Shannon theorem
Signal to noise ratio
Online Access:Get full text
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Summary:The data transfer capacity of a communication channel is limited by the Shannon-Hartley theorem and scales as \(\text{log}_2(1 + \text{SNR})\) for a single channel with the power signal-to-noise ratio (SNR). We implement an array of atom-optical receivers in a single-input-multi-output (SIMO) configuration by using spatially distributed probe light beams. The data capacity of the distributed receiver configuration is observed to scale as \(\text{log}_2(1 + N\times\text{SNR})\) for an array consisting of \(N\) receivers. Our result is independent on the modulation frequency, and we show that such enhancement of the bandwidth cannot be obtained by a single receiver with a similar level of combined optical power. We investigate both theoretically and experimentally the origins of the single channel capacity limit for our implementation.
ISSN:2331-8422
DOI:10.48550/arxiv.2102.05285