In this paper we describe the first use of a two core photonic crystal fibre for fringe projection for use in a Doppler difference velocimeter. The two-core fibre, with a core separation of 17 /spl mu/m, projects a series of fringes when both cores are illuminated with 633 nm light simultaneously. Light scattered from moving particles is coupled into a separate multi-mode (50/125 /spl mu/m) receiving fibre and detected using a silicon detector and amplifier. The measured reflection intensity signal is processed in the frequency domain to obtain the velocity component of the moving particle.


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    Titel :

    Doppler difference velocimetry using a 2-core photonic crystal fibre


    Beteiligte:
    MacPherson, W.N. (Autor:in) / Jones, J.D.C. (Autor:in) / Mangan, B.J. (Autor:in) / Knight, J.C. (Autor:in) / Russell, P.St.J. (Autor:in)


    Erscheinungsdatum :

    2002-01-01


    Format / Umfang :

    247251 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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