A method is described to efficiently couple light between single-mode fibre (SMF) and photonic crystals (PhCs) using a novel Fresnel-zone (FZ) MSF lens. In this study, the proposed FZ-MSF lens focuses light in a similar way to a graded-index (GRIN) rod lens, but instead of having a continuous parabolic refractive index variation, the MSF employs longitudinal FZs to focus light from SMF down to PhC dimensions, and vice-versa. Details on the equations describing the trajectory of a light ray in a medium with spatially-varying refractive index is also discussed.


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    Title :

    Low refractive-index-contrast Fresnel-microstructure fibre for coupling between SMF and photonic crystals


    Contributors:
    Hisatomi, M. (author) / Parker, M.C. (author) / Walker, S.D. (author)


    Publication date :

    2003-01-01


    Size :

    223494 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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