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Proceedings Paper

Bragg Effect Refractometer
Author(s): Marek T. Wlodarczyk
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Paper Abstract

A novel optical waveguide refractometer is reported suitable for on-line and in situ monitoring of index of refraction. The device exhibits theoretical sensitivity dramatically higher than the sensitivity of the previously reported fiber optic refractometers. Based on the Bragg effect in the periodically corrugated dielectric waveguide, the refractometer can detect variations in the index of refraction of the medium in contact with the waveguide. It is found that more than two orders of magnitude higher theoretical sensitivity can be accomplished with the Bragg-type refractometer compared to the one based on the reflection principle.

Paper Details

Date Published: 19 January 1989
PDF: 7 pages
Proc. SPIE 0990, Chemical, Biochemical, and Environmental Applications of Fibers, (19 January 1989); doi: 10.1117/12.959992
Show Author Affiliations
Marek T. Wlodarczyk, General Motors Research Laboratories (United States)

Published in SPIE Proceedings Vol. 0990:
Chemical, Biochemical, and Environmental Applications of Fibers
Robert A. Lieberman; Marek T. Wlodarczyk, Editor(s)

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