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Subject: search.filters.subject.All-optical logic

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    All-optical adder/substractor using dark-bright soliton conversion control
    (2012-10-02)
    Phongsanam, Prapas
    ;
    Mitatha, Somsak
    ;
    Yupapin, Preecha P.
    We propose a new design of most important logical circuits using optical devices for all-optical addition/subtraction applications, in which the simultaneous operation of addition/subtraction arithmetic operation can be performed by using the dark-bright soliton conversion control. In operation, all-optical data input for addition/subtraction of binary operation logic '0' and '1' are formed by dark soliton (D) and bright soliton (B) pulses, respectively. By using the dark-bright soliton conversion behavior, the conversion between dark and bright soliton pulses can be obtained and form the logic pulses by a π/2 phase shifted device (i.e. an optical coupler), in which the binary operation can be formed simultaneously at the through and drop ports, respectively. In application, the proposed scheme can be recognized as a simple and flexible system for forming the logic switching system, which can be used for advanced logical system. © 2012 IEEE.
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    All-optical logic and arithmetic operation using soliton control for tree architecture use
    (2012-07-05)
    Luangxaysana, K.
    ;
    Phongsanam, P.
    ;
    Mitatha, S.
    ;
    Yoshida, M.
    ;
    Komine, N.
    This study has proposed a new design system for basic all-optical logic and arithmetic operation using dark-bright soliton conversion control base on tree architecture. Optical tree architecture and nonlinear materials can provide a significant role for contribution in optical interconnecting network and ultrafast photonic computing system. In operation, the input data for all-optical binary logic can be formed by dark and bright soliton pulses for logic '0' and '1', respectively. By using the dark-bright soliton conversion behaviors, the conversion between dark and bright soliton pulses can be obtained and formed the logic pulse by a 7i/2 phase shifted device (i.e., an optical coupler). In application, the proposed scheme can be recognized as a simple and flexible system for forming the logic switching system, which can be used for advanced logical system. © 2012 Asian Network for Scientific Information.