A novel design and analysis of low loss abrupt bends of dielectric slab waveguides

Author

Safavi-Naeini, Safieddin ; Chow, Y.L.

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada

Volume

10

Issue

5

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

570

Lastpage

580

Abstract

On the basis of the well-known laws of reflection and refraction of the plane electromagnetic waves, a concept for designing very low loss nonadiabatic junctions between tilted straight sections of dielectric waveguides is investigated. Combining the ray representation of the propagating modes with the equivalent source formulation of the dielectric waveguide excitation problem, a simple and accurate 2-D theory for treating such bends in slab waveguides is developed. Numerical results for typical cases are explained along with some new junctions for achieving large angle redirection of guided waves with very low bending loss

Keywords

bending; integrated optics; light reflection; light refraction; optical losses; optical waveguide theory; 2-D theory; dielectric slab waveguides; equivalent source formulation; integrated optics; large angle redirection; low loss abrupt bends; plane electromagnetic waves; propagating modes; ray representation; reflection; refraction; tilted straight sections; very low loss nonadiabatic junctions; Dielectric losses; Electromagnetic propagation; Electromagnetic reflection; Electromagnetic refraction; Electromagnetic scattering; Electromagnetic waveguides; Planar waveguides; Slabs; Waveguide junctions; Waveguide theory;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.136090

Filename

136090