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Proceedings Paper

Liquid crystalline optical fibers for pressure monitoring
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Paper Abstract

Initial results of experimental studies of light propagation by optical fibers with liquid crystalline cores under hydrostatic pressure conditions are reported. Specially drawn hollow-core fibers (capillary tubes of radii 15 microns) were filled with a liquid crystal mixture. The whole system composed of the fiber and the liquid crystal has been placed in a high pressure chamber designed to sustain pressures up to 100 MPa. The liquid crystalline-core optical fiber acts as an optically anisotropic medium characterized by an index ellipsoid, and can serve as a fiber with easily controlled birefringence. Since hydrostatic pressure generate stress effects occurring in the system, a new class of fiber-optic pressure sensors can be introduced. The paper presents preliminary characteristics of the pressure sensor utilizing liquid crystalline-core fibers. Envisaged areas of applications include pipe-lines, mining instrumentation, process control, and environmental protection.

Paper Details

Date Published: 10 December 1996
PDF: 5 pages
Proc. SPIE 2836, Chemical, Biochemical, and Environmental Fiber Sensors VIII, (10 December 1996); doi: 10.1117/12.260579
Show Author Affiliations
Tomasz R. Wolinski, Warsaw Univ. of Technology (Poland)
Wojtek J. Bock, Univ. of Quebec at Hull (Canada)
Witold Konopka, Warsaw Univ. of Technology (Poland)
Tomasz Nasilowski, Warsaw Univ. of Technology (Poland)
Jan Wojcik, UMCS Lublin (Poland)

Published in SPIE Proceedings Vol. 2836:
Chemical, Biochemical, and Environmental Fiber Sensors VIII
Robert A. Lieberman, Editor(s)

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