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Elezov M, Scherbatenko M, Sych D, Goltsman G, Arakelyan S, Evlyukhin A, et al. Towards the fiber-optic Kennedy quantum receiver. In: EPJ Web Conf. Vol 220.; 2019. 03011 (1 to 2).
Abstract: We consider practical aspects of using standard fiber-optic elements and superconducting nanowire single-photon detectors for the development of a practical quantum receiver based on the Kennedy scheme. Our receiver allows to discriminate two phase-modulated coherent states of light at a wavelength of 1.5 microns in continuous mode with bit rate 200 Kbit/s and error rate about two times below the standard quantum limit.
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