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Item type:Publication, Continuous variable quantum key distribution via a simultaneous optical-wireless up-down-link system(2010-09-01) ;Suchat, S. ;Pornsuwancharoen, N.Yupapin, P. P.We propose a remarkably simple system of a continuous variable quantum key distribution using chaotic signals generated by a soliton pulse within a nonlinear micro-ring resonator system. By using the appropriate soliton input power and micro-ring parameters, continuous signals are generated spreading over the spectrum. Polarized photons are formed incorporating the polarization control unit into the micro-ring system, which allows different time slot entangled photons to be randomly formed. Two different frequency bands for up-down-link converters can be selected (filtered) and performed, which is available for the simultaneous up-down-link application in the telephone networks. Results obtained have shown that the application of such a system for continuous variable quantum cryptography via optical-wireless up-down-link converters within a single system is plausible. © 2009 Elsevier GmbH. All rights reserved.1
