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Author: search.filters.author.Suchat, S.Subject: search.filters.subject.Quantum communication

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    Error corrections of quantum key distribution of the quantum codes via optical wireless link
    (2011-03-01)
    Taengtang, T.
    ;
    Praithoonwattanakit, K.
    ;
    Yupapin, P. P.
    ;
    Suchat, S.
    Quantum key generated by using a fiber optic Mach Zehnder interferometer incorporating a fiber optic ring resonator is proposed. The generated quantum key is distributed via an optical wireless link system, which is available for the free space link. The random quantum bits can be formed and used as the secret codes in quantum communication system. By adding an ancillary photon after the signal photon within the correlation time of the fiber noise and by performing quantum parity checking, the high fidelity to the noiseless quantum in free space is achieved by the technique known as the quantum error correction. © 2010 Elsevier GmbH. All rights reserved.
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    A novel multi-optical/quantum memory and encoding system using multi-photon generation
    (2010-12-01)
    Glomglome, S.
    ;
    Mitatha, S.
    ;
    Watanachaturaporn, P.
    ;
    Suchat, S.
    ;
    Yupapin, P. P.
    We propose a novel system of an optical/quantum memory generation, which can be used for multi-optical/quantum memory applications. The large bandwidth of a single pulse is generated using a soliton pulse in a Kerr-type nonlinear medium, i.e. a nonlinear waveguide. The generation of the localized temporal and spatial soliton pulses within the nano-waveguide is achieved. The free spectrum range enhancement of the generated multi-soliton signals can be formed and achieved using the nano-waveguide incorporating the Mach Zhender Interferometer (MZI). The different light path of the soliton pulses is introduced by the delayed lines of the interferometer. This improves the wavelength free spectrum range, where the different entangled photon pairs can also obtained. Furthermore, the generated photons can be filtered and stored within a system, where the storage of single or multi-photons using the proposed system can be achieved, which in turn can be used for multi-optical/quantum memory applications. © 2009 Elsevier GmbH. All rights reserved.
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