This paper presents an overview of self-imaging principle used in MMI couplers and also explains the application of multimode waveguide as an optical switch. The application of MMI coupler to realize a 2×2 optical switch has been explained by varying the refractive indices of various regions of MMI section by only 1-2% and the switch is found to exhibit 2-10% loss for various coupling states at different power inputs. Then the basic 2×2 switch is exploited in design of 4×4 benes switch. Benes switch is used as it is suitable for large switches requiring fewer SOAs which make it a good candidate for further use in higher order switches. Simulation results are shown. Power coupling losses occurring in 4×4 switch are compensated using minimum number of SOAs with low input injection current of the order of 10-20mA.


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    Titel :

    Design and analysis of low loss MMI based 4×4 optical switch using Benes architecture with SOAs


    Beteiligte:
    Singh, Ghanshyam (Autor:in) / Singh, Anoop (Autor:in) / Yadav, R.P. (Autor:in) / Janyani, Vijay (Autor:in)


    Erscheinungsdatum :

    01.12.2008


    Format / Umfang :

    330351 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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