Ultimate capacity limit of a multi-span link with phase-insensitive amplification
Marcin Jarzyna, Raul Garcia-Patron, Konrad Banaszek
TL;DR
This paper compares the Shannon capacity of optical links with quantum-limited detection strategies, highlighting their potential mainly for unamplified short-distance or free-space optical communications.
Contribution
It provides an analysis of the ultimate capacity limits of multi-span optical links with phase-insensitive amplification under quantum detection constraints.
Findings
Quantum-limited detection strategies may enhance short-distance optical links.
Amplification impacts capacity limits in optical communication.
Potential applications are mainly in unamplified or free-space optical systems.
Abstract
The Shannon capacity of a point-to-point link with an optimised configuration of optical amplifiers is compared with general detection strategies permitted by quantum mechanics. Results suggest that the primary application area of receivers based on such strategies may be unamplified short-distance links or free-space optical communication
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