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Author: search.filters.author.Mitatha, S.Subject: search.filters.subject.Quantum memory

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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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    A simultaneous generation of QKD and QDC via optical memory array for distributed network security
    (2010-12-01)
    Pongwongtragull, P.
    ;
    Mitatha, S.
    ;
    Yupapin, P. P.
    We propose a novel system of a simultaneous generation of continuous variable quantum key distribution (QKD) and quantum dense coding (QDC) via an optical memory array. The optical memory system is formed by using an array waveguide incorporating a nano-ring resonator, whereas the different spatial light modes can be generated and stored within an optical memory unit. The polarized photon is formed and stored within a storing device, i.e. a ring resonator, whereas the different time slot entangled photons can be generated, transmitted and detected by the different subscriber in the distributed networks. By using the optical memory concept, the continuous variable quantum key distribution is provided. Furthermore, the use of quantum dense coding via time division multiplexing paths, i.e. different time slot, is also plausible. The advantage of the proposed system is that the quantum key distribution can provide the network top security with high capacity and safety, which is the large demand of usage in the public networks. © 2009 Elsevier GmbH. All rights reserved.