A novel technique for measurement of the mode indexes of channel waveguides

Author

Hussell, Christopher P. ; Srivastava, Ramakant ; Ramaswamy, Ramu V.

Author_Institution

Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA

Volume

2

Issue

7

fYear

1990

fDate

7/1/1990 12:00:00 AM

Firstpage

493

Lastpage

495

Abstract

An accurate technique for measurement of small differences in the mode indexes of channel waveguides is presented and compared with the prism coupler. It has a distinct advantage over the prism coupler method since it allows measurements in buried waveguides as well. The absolute mode index of an individual guide can also be obtained provided a guide near the mode cutoff is available on the same substrate. The technique is expected to be useful with waveguides of high index materials, especially when the prism coupler monitoring the uniformity of optical fibers or measuring the waveguide birefringence.<>

Keywords

birefringence; optical couplers; optical prisms; optical waveguides; refractive index measurement; absolute mode index; buried waveguides; channel waveguides; high index materials; mode cutoff; mode indexes; optical fibers; prism coupler; waveguide birefringence; waveguide refractive index measurements; Birefringence; Glass; Monitoring; Optical coupling; Optical devices; Optical fibers; Optical materials; Optical waveguides; Oscilloscopes; Reproducibility of results;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.56627

Filename

56627