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

Kalli, Kyriacos, Brady, G.P., Webb, David J., Jackson, David A., Zhang, Lin, Bennion, Ian (1995) Wavelength-division and spatial multiplexing using tandem interferometers for Bragg grating sensor networks. Optics Letters, 20 (24). pp. 2544-2546. ISSN 0146-9592. (doi:10.1364/OL.20.002544) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1364/OL.20.002544

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 nɛ/Hz−−√at 7 Hz for a wavelength of 1535 nm.

Item Type: Article
DOI/Identification number: 10.1364/OL.20.002544
Subjects: Q Science > Q Science (General)
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: P. Ogbuji
Date Deposited: 28 May 2009 20:01 UTC
Last Modified: 19 Jun 2019 09:57 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/19632 (The current URI for this page, for reference purposes)
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