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Proceedings Paper

Liquid crystal long-period fiber grating as a sensing element for electric field and temperature measurements
Author(s): Aleksandra Czapla; Wojtek J. Bock; Tomasz Woliński; Roman Dąbrowski; Edward Nowinowski-Kruszelnicki
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Paper Abstract

The main goal of the presented work is to integrate a long-period fiber grating (LPFG) and liquid crystal (LC) material into a hybrid structure, called an LC-LPFG, in order to develop innovative devices for sensing physical quantities. For this purpose we used specially designed low-birefringence LC mixtures whose ordinary refractive index is lower than that of silica in a certain range of temperatures. This combination allowed us to dynamically change the propagation properties of the cladding modes in the LC-LPFGs by varying the temperature and the electric field. This design of LC-LPFGs exhibits extraordinary sensing properties.

Paper Details

Date Published: 17 May 2011
PDF: 5 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77536L (17 May 2011); doi: 10.1117/12.887546
Show Author Affiliations
Aleksandra Czapla, Univ. du Québec en Outaouais (Canada)
Warsaw Univ. of Technology (Poland)
Wojtek J. Bock, Univ. du Québec en Outaouais (Canada)
Tomasz Woliński, Warsaw Univ. of Technology (Poland)
Roman Dąbrowski, Military Univ. of Technology (Poland)
Edward Nowinowski-Kruszelnicki, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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