Open Access Paper
25 September 2017 Toward optimum efficiency in a quantum receiver for coded ppm
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Proceedings Volume 10562, International Conference on Space Optics — ICSO 2016; 105623M (2017) https://doi.org/10.1117/12.2296040
Event: International Conference on Space Optics — ICSO 2016, 2016, Biarritz, France
Abstract
Communications systems builders continue to search for signal formats and receiver architectures that can provide the most efficient utilization of their subsystems, which include power amplifiers as well as transmit and receive apertures. Receivers requiring very small amounts of received power are of particular interest in communications links where transmission distances are very long and losses are large, such as from Deep Space. Helstrom and others ([1],[2],[3]) initiated the study of optimum signal reception using quantum mechanical signal models. They derived the mathematical description and predicted performance of receivers that optimize certain criteria, such as Minimum Probability of Error (MPE). Unfortunately, practical implementation of their proposed receivers has still not been achieved. In parallel, technology has advanced to where noiseless photon counters can be used to achieve quite good performance ([4]). We show here that, when an end-to-end error correction code is added, in fact such a system can out-perform the “optimum” MPE system at low signal powers. In this report, we derive the formulation of a quantum receiver that is shown to be uniformly better than either the MPE or photon-counting receiver.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. M. Boroson "Toward optimum efficiency in a quantum receiver for coded ppm", Proc. SPIE 10562, International Conference on Space Optics — ICSO 2016, 105623M (25 September 2017); https://doi.org/10.1117/12.2296040
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KEYWORDS
Receivers

Quantum efficiency

Astronomical imaging

Projection systems

Telecommunications

Quantum computing

Defense and security

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