Wavelength-division and spatial multiplexing using tandem interferometers for Bragg grating sensor networks

Kalli, K. and Brady, G.P. and Webb, D.J. and Jackson, D.A. and Zhang, L.S. and Bennion, I. (1995) Wavelength-division and spatial multiplexing using tandem interferometers for Bragg grating sensor networks. Optics Letters, 20 (24). pp. 2544-2546. ISSN 0146-9592. (The full text of this publication is not available from this repository)

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Abstract

We present a new method for the interrogation of large arrays of Bragg grating sensors. Eight gratings operating between the wavelengths of 1533 and 1555 nm have been demultiplexed, An unbalanced Mach-Zehnder interferometer illuminated by a single low-coherence source provides a high-phase-resolution output for each sensor, the outputs of which are sequentially selected in wavelength by a tunable Fabry-Perot interferometer. The minimum detectable strain measured was 90 n epsilon/root Hz at 7 Hz for a wavelength of 1535 nm. (C) 1995 Optical Society of America

Item Type: Article
Subjects: Q Science > Q Science (General)
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Optics
Depositing User: P. Ogbuji
Date Deposited: 28 May 2009 20:01
Last Modified: 17 Jul 2012 10:14
Resource URI: http://kar.kent.ac.uk/id/eprint/19632 (The current URI for this page, for reference purposes)
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