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Author: search.filters.author.Jaturantruengsri, S.Subject: search.filters.subject.Directional coupler

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    Item type:Publication,
    The wavelength sensor using optical directional coupler
    (2005-12-01)
    Jaturantruengsri, S.
    ;
    Sae-tang, K.
    ;
    Somkuarnpanit, S.
    This paper proposes a wavelength sensor based on the optical directional coupler. The finite-difference time-domain (FDTD) is used to calculate of the light intensity propagating thorough the structure, and to find the appropriate dimensions of the structure. The structure with the size of 0.4μm×0. 4μm, and particular lengths would provide the coupling efficiency varying linearly with wavelengths. Thus, the structure could be employed as the wavelength sensor for the wavelength in a range between 1.2μm and 1.6μm. © 2005 IEEE.