Work

Data capacity scaling of a distributed Rydberg atomic receiver array

Year: 2021

Type: article

Abstract: The data transfer capacity of a communication channel is limited by the Shannon–Hartley theorem and scales as log2(1+SNR) for a single channel with a given power signal-to-noise ratio (SNR). We implement an array of atom-optical receivers in a single-input-multi-output configuration by using spatially distributed probe light beams. The data capacity of the distributed receiver configuration is observed to scale as log2(1+N×SNR) for an array consisting of N receivers. Our result is independent of 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.

Source: Journal of Applied Physics

DOI: 10.1063/5.0048415

Authors: J. Susanne Otto, Marisol K. Hunter, Niels Kjærgaard, Amita B. Deb

Institutions: The Dodd-Walls Centre for Photonic and Quantum Technologies, University of Otago

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Ministry of Business, Innovation and Employment, Marsden Fund

Awards: G1083505348, Contact-free sensing of high voltages using a laser electrometer