Vertical coupling between D-fiber and buried rectangular waveguide: an accurate analysis by vectorial finite element method

Tiziana Conese-Bond; Giovanni Barbarossa; Mario Nicola Armenise

doi:10.1117/12.174993

2 May 1994 Vertical coupling between D-fiber and buried rectangular waveguide: an accurate analysis by vectorial finite element method

Tiziana Conese-Bond, Giovanni Barbarossa, Mario Nicola Armenise

Author Affiliations +

Proceedings Volume 2150, Design, Simulation, and Fabrication of Optoelectronic Devices and Circuits; (1994) https://doi.org/10.1117/12.174993
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Light coupling to planar lightwave circuits by means of directional coupling between D-fiber and buried rectangular waveguide is indicated as a viable mean of reducing alignment tolerances in the fiber-pigtailing procedure for integrated optical devices. The geometry involved is that of a circular fiber core vertically coupled to a rectangular buried waveguide. An accurate analysis by a vectorial formulation of the finite element method is presented of such a coupling geometry in collinear configuration. The structure is analyzed for symmetric and antisymmetric cladding configurations. The power coupling efficiency is investigated in terms of waveguide dimensions and refractive index steps.

Citation Download Citation

Tiziana Conese-Bond, Giovanni Barbarossa, and Mario Nicola Armenise "Vertical coupling between D-fiber and buried rectangular waveguide: an accurate analysis by vectorial finite element method", Proc. SPIE 2150, Design, Simulation, and Fabrication of Optoelectronic Devices and Circuits, (2 May 1994); https://doi.org/10.1117/12.174993

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