Power loss analysis at a step discontinuity of a multimode optical waveguide

Author

Öz, Metin ; Krchnavek, Robert R.

Author_Institution

Dept. of Electr. Eng., Washington Univ., St. Louis, MO, USA

Volume

16

Issue

12

fYear

1998

fDate

12/1/1998 12:00:00 AM

Firstpage

2451

Lastpage

2457

Abstract

In this paper, we analyze the radiated, reflected, and transmitted power due to an abrupt step discontinuity in a multimode optical waveguide by a numerical technique without any physical approximations other than neglecting the evanescent radiation modes. The amount of power loss depends primarily on the number of modes the portion of the waveguide on each side can support. The range of thickness mismatch for which reasonably low loss occurs depends on the wavelength. The technique can be used to analyze step discontinuities of symmetric or asymmetric, single or multimode optical slab waveguides with arbitrary cross section accurately

Keywords

integrated optics; optical communication equipment; optical losses; optical waveguide theory; optical waveguides; waveguide discontinuities; abrupt step discontinuity; arbitrary cross section; evanescent radiation modes; integrated optics; low los; multimode optical slab waveguides; multimode optical waveguide; numerical technique; physical approximations; power loss; power loss analysis; radiated; reflected; single mode optical slab waveguides; step discontinuities; step discontinuity; thickness mismatch; transmitted power; Integrated optics; Magnetic analysis; Optical devices; Optical losses; Optical surface waves; Optical waveguide theory; Optical waveguides; Slabs; Tellurium; Waveguide discontinuities;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.736637

Filename

736637