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Optical Engineering

Liquid-crystal-based in-fiber tunable spectral structures
Author(s): Zeev Zalevsky; Feng Luan; William J. Wadsworth; Sergio Leon Saval; Timothy A. Birks
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Paper Abstract

We present new approaches for realizing enhanced tunable filters based on filling special fibers with nematic or cholesteric liquid crystal. One of the suggested approaches is to realize high-resolution longitudinal structure of electrodes using printed circuit board technology and then fill tapered capillaries with the liquid crystal, thus obtaining the desired spectral response at low voltage and with low insertion loss. Another approach is to fill special photonic crystal fibers with liquid crystal and obtain spectral tunability by generating phase differences between light paths.

Paper Details

Date Published: 1 March 2006
PDF: 8 pages
Opt. Eng. 45(3) 035005 doi: 10.1117/1.2181847
Published in: Optical Engineering Volume 45, Issue 3
Show Author Affiliations
Zeev Zalevsky, Univ. of Bath (United Kingdom)
Feng Luan, Univ. of Bath (United Kingdom)
William J. Wadsworth, Univ. of Bath (United Kingdom)
Sergio Leon Saval, Univ. of Bath (United Kingdom)
Timothy A. Birks, Univ. of Bath (United Kingdom)


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