ANALYSIS OF PERPENDICULAR CROSSING DIELECTRIC WAVEGUIDES WITH VARIOUS TYPICAL INDEX CONTRASTS AND INTERSECTION PROFILES | Zendy

HungWen Chang | Zendy; Yan-Huei Wu | Zendy

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ANALYSIS OF PERPENDICULAR CROSSING DIELECTRIC WAVEGUIDES WITH VARIOUS TYPICAL INDEX CONTRASTS AND INTERSECTION PROFILES

Author(s) -

HungWen Chang,

Yan-Huei Wu

Publication year - 2010

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier10081008

Subject(s) - intersection (aeronautics) , perpendicular , index (typography) , optics , dielectric , level crossing , materials science , geometry , physics , mathematics , engineering , geography , computer science , optoelectronics , cartography , mechanical engineering , world wide web

We present a rigorous 2D numerical study of the transmission, reflection and crosstalk coefficients of the perpendicular, identical dielectric crossing waveguide with various core-cladding index contrasts for both TE and TM polarizations. Our method is based on a hybrid frequency-domain finite-difference (FD-FD) technique computed with the cross-symmetry model. By varying the intersection profile, such as the circular, filleted, tapered and elliptical shapes, we achieve, even for a large 3.5 to 1.5 index ratio, a low 0.25 dB insertion loss, a nontrivial reduction over the straight direct crossing case.

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