Modeling of evanescent-wave coupling between optical dielectric waveguides. (2nd January 2019)

• Record Type: Journal Article
• Authors: Abouheaf, M.; Gueaieb, W.; Samra, A.
• Is Part Of: International journal of modelling & simulation. Volume 39:Number 1(2019)
• Page Start: 38
• Page End: 47
• Publication Date: 2019-01-02
• Subjects: Modeling of optical modes -- modeling of evanescent-wave coupling -- optical coupling -- overlap integrals -- improved coupled mode theory -- dielectric waveguides; Mathematical models -- Periodicals; Simulation methods -- Periodicals; Mathematical models; Simulation methods; Periodicals; 003.3
• DOI: 10.1080/02286203.2018.1474028
• Languages: English
• ISSNs: 0228-6203

Abstract

Abstract: The transverse coupling between the optical dielectric waveguides is modeled and analyzed using the Improved Coupled Mode Theory. The coupling between the modes is established via the evanescent part of the modal field propagating in one waveguide which penetrates the adjacent waveguide. The coupling phenomena is analyzed numerically by evaluating the average overlap integrals, coupling coefficients, asynchronism factor, and coupling length using the Improved Coupled Mode Theory at strong and weakly guiding conditions. The performance of the Improved Coupled Mode Theory is tested and compared to the conventional Coupled Mode Theory.