The characteristics of the three-guide tapered coupler for an integrated optical isolator with a semiconductor guiding layer (GaInAsP) were experimentally studied. By the experiment for measuring power branching ratio, the unbalance of the ratio smaller than 2% was confirmed for wavelengths ranging between 1.50 and 1.58 /spl mu/m. The coupling to the central waveguide occurred when two light waves in the side waveguides were in phase. No output was coupled to the central waveguide when they were 180/spl deg/ out of phase. The isolation of more than 17dB will be achieved when the coupler is employed in the isolator.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Coupling characteristics of three-guide tapered coupler for integrated optical isolator with semiconductor guiding layer


    Contributors:
    Yokoi, H. (author) / Mizumoto, T. (author) / Shinjo, N. (author) / Futakuchi, N. (author) / Kaida, N. (author) / Nakano, Y. (author)


    Publication date :

    1999-01-01


    Size :

    164263 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Assessment of Coupled-Mode Theory for Tapered Optical Coupler

    Lessard, S. / Huang, W. | British Library Online Contents | 1993


    Reduced Coupling Loss Using a Tapered-Rib Adiabatic-Following Fiber Coupler

    IEEE / Lasers and Electro-Optics Society | British Library Conference Proceedings | 1995


    Tapered-rib adiabatic-following fiber coupler

    Smith, R. E. / Sullivan, C. T. / Vawter, G. A. et al. | British Library Conference Proceedings | 1996


    Tapered fiber coupler serves as biosensor

    British Library Online Contents | 2007


    Guiding type car coupler with buffering device

    WANG YULONG / ZHANG NING / SU JIE et al. | European Patent Office | 2021

    Free access