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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-11-04
Radiation Field and Optical Coupling Evaluation Using a New Mathematical Model
By
Mansour Bacha,

    Mr. Mansour Bacha

    Algerian Space Agency

    Algeria

    Homepage

Abderrahmane Belghoraf

    Dr. Abderrahmane Belghoraf

    Electronics Department

    University of Sciences and Technology of Oran Mohamed Boudiaf

    Algeria

    Homepage

Progress In Electromagnetics Research M, Vol. 51, 175-183, 2016
doi:10.2528/PIERM16072507 | Google Scholar

Abstract
The mathematical model elaborated in this paper is based on the concept of intrinsic modes in order to analyze and synthesize optical wave propagation along a non-uniform optical structure which is used in integrated optics communication as tapered optical coupler. The new mathematical model is simply developed by introducing modifications to the intrinsic integral, and its numerical evaluation illustrate the electromagnetic field distribution inside a taper thin film and also outside the waveguide constituted by the substrate and the cladding of lower refractive index. The proposed method permits efficiently tracking the behaviour of the optical waves both inside and outside of the optical waveguide, and quantifying the radiation and optical coupling occurring from the taper thin film of higher refractive index to adjacent mediums until a total energy transfer; this happens at thicknesses lower than waveguide cutoff thickness of each mode. The new model can be applied to all types of tapered optical coupler, having a high or low contrast of the refractive indexes, and different wedge angles formed by the different mediums of the waveguide.
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Citation
Mansour Bacha, and Abderrahmane Belghoraf, "Radiation Field and Optical Coupling Evaluation Using a New Mathematical Model," Progress In Electromagnetics Research M, Vol. 51, 175-183, 2016.
doi:10.2528/PIERM16072507
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