When and how coupled-mode theory fails in high-index contrast arrayed and multi-slot waveguides

Author

Cooper, Michael L. ; Mookherjea, Shayan

Author_Institution

Univ. of California, La Jolla, CA, USA

fYear

2009

fDate

2-4 June 2009

Firstpage

1

Lastpage

2

Abstract

We describe a method of reconstruction for investigating the validity of coupled mode theory in deriving the coupling coefficients of high index contrast (silicon-on-insulator) arrayed waveguides. For three material systems (silicon and air, oxide, and nitride) we quantify at which separation distances the next-to-nearest-neighbor coupling becomes significant, and the precise way in which coupled-mode theory breaks down, by reconstructing a coupling matrix from the fields and propagation constants.

Keywords

coupled mode analysis; matrix algebra; optical arrays; optical materials; optical waveguides; refractive index; silicon-on-insulator; Si-SiO₂; coupled-mode theory; coupling matrix; high-refractive index contrast arrayed waveguide; multislot waveguide; propagation constants; silicon-on-insulator arrayed waveguide; Coupling circuits; Eigenvalues and eigenfunctions; Integrated optics; Optical coupling; Optical waveguide theory; Optical waveguides; Propagation constant; Silicon on insulator technology; Transmission line matrix methods; Waveguide theory; (130.2790) Guided waves; (130.3120) Integrated optics devices; (230.7380) Waveguides, channeled;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on

Conference_Location

Baltimore, MD

Print_ISBN

978-1-55752-869-8

Electronic_ISBN

978-1-55752-869-8

Type

conf

Filename

5225770