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.
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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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