Modal characteristics of bent dual mode planar optical waveguides

Author

Kumar, Arun ; Gallawa, R.L. ; Goyal, I.C.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., New Delhi, India

Volume

12

Issue

4

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

621

Lastpage

624

Abstract

Modal characteristics of bent dual-mode planar optical waveguides are obtained. The bending-induced changes in the modal power distribution is found to be quite different for the two modes. Surprisingly, unlike the fundamental mode, bending causes the fractional modal power for the second mode to increase in the inner core-half and to decrease in the outer core-half of the waveguide. Interestingly, this leads to a decrease in effective index of the second mode due to bending at sufficiently high V-values

Keywords

bending; optical waveguide theory; optical waveguides; V-values; bending-induced changes; bent dual mode planar optical waveguides; effective index; fractional modal power; fundamental mode; inner core-half; modal characteristics; modal power distribution; outer core-half; second mode; Electromagnetic waveguides; Optical fiber sensors; Optical planar waveguides; Optical sensors; Optical waveguide theory; Optical waveguides; Planar waveguides; Power distribution; Sensor phenomena and characterization; Waveguide transitions;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.285355

Filename

285355