Approaching the ultimate capacity limit in deep-space optical communication

Konrad Banaszek; Ludwig Kunz; Marcin Jarzyna; Michal Jachura

doi:10.1117/12.2506963

4 March 2019 Approaching the ultimate capacity limit in deep-space optical communication

Konrad Banaszek, Ludwig Kunz, Marcin Jarzyna, Michal Jachura

Proceedings Volume 10910, Free-Space Laser Communications XXXI; 109100A (2019) https://doi.org/10.1117/12.2506963
Event: SPIE LASE, 2019, San Francisco, California, United States

Abstract

The information capacity of an optical channel under power constraints is ultimately limited by the quantum nature of transmitted signals. We discuss currently available and emerging photonic technologies whose combination can be shown theoretically to enable nearly quantum-limited operation of a noisy optical communication link in the photon-starved regime, with the information rate scaling linearly in the detected signal power. The key ingredients are quantum pulse gating to facilitate mode selectivity, photon-number-resolved direct detection, and a photon-efficient high-order modulation format such as pulse position modulation, frequency shift keying, or binary phase shift keyed Hadamard words decoded optically using structured receivers.

Citation Download Citation

Konrad Banaszek, Ludwig Kunz, Marcin Jarzyna, and Michal Jachura "Approaching the ultimate capacity limit in deep-space optical communication", Proc. SPIE 10910, Free-Space Laser Communications XXXI, 109100A (4 March 2019); https://doi.org/10.1117/12.2506963

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