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10 March 2020 Experimental demonstration of a scalable M-ary quantum receiver (Conference Presentation)
M. V. Jabir, Ivan A. Burenkov, Abdella Battou, Sergey V. Polyakov
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Proceedings Volume 11295, Advanced Optical Techniques for Quantum Information, Sensing, and Metrology; 1129509 (2020) https://doi.org/10.1117/12.2546606
Event: SPIE OPTO, 2020, San Francisco, California, United States
Abstract
We report on the first experimental implementation of a scalable M-ary quantum receiver with time-resolved photon detection and real-time adaptive displacement using off-the-shelf components. We implemented M=4, 6, 8, 12, and 16 coherent frequency shift keying communication links with optimal parameters for maximal energy sensitivity. Then, we compared the measured sensitivity with the best sensitivity that can be achieved with a perfect classical measurement (shot noise limit). We observe unconditional, below the shot-noise limit sensitivity and a favorable sensitivity scaling with the alphabet length M.
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M. V. Jabir, Ivan A. Burenkov, Abdella Battou, and Sergey V. Polyakov "Experimental demonstration of a scalable M-ary quantum receiver (Conference Presentation)", Proc. SPIE 11295, Advanced Optical Techniques for Quantum Information, Sensing, and Metrology, 1129509 (10 March 2020); https://doi.org/10.1117/12.2546606
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KEYWORDS
Receivers
Single photon detectors
Adaptive optics
Frequency shift keying
Optical communications
Photodetectors
Quantum communications
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