Towards the fiber-optic Kennedy quantum receiver
Moscow Pedagogical State University, 119992 Moscow, Russia
2 P.N. Lebedev Physical Institute, Russian Academy of Sciences, 119333 Moscow, Russia
3 JCS “QRate”, Skolkovo, 143025 Moscow, Russia
Published online: 25 October 2019
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.
© The Authors, published by EDP Sciences, 2019
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