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Proceedings Paper

Very high sensor-density multiplexing using a wavelength-to-time domain reflectometry approach based on a rapidly swept akinetic laser
Author(s): M. P. Minneman; E. Hoover; P. Boschert; J. Ensher; M. Crawford; D. Derrickson; A. D. Kersey
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Paper Abstract

We demonstrate a scheme for the interrogation of arrays of FBG sensors based on a Swept Laser Distributed Sensing system which can achieve 1000 sensors or more in a single fiber, while retaining the sensitivity and repeatability expected with FBG sensors of better than 0.5 μepsilon and 0.05 C. The system utilizes an ‘akinetic’ wavelength swept source and an arrival time-dependent detection approach to allow potentially 1000s of very low reflectivity FBGs to be monitored via a form of Wavelength-to-Time Domain Reflectometry. We demonstrate the interrogation of 250 gratings in a system architecture designed to support 1000 gratings.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96342B (28 September 2015); doi: 10.1117/12.2205455
Show Author Affiliations
M. P. Minneman, Insight Photonic Solutions, Inc. (United States)
E. Hoover, Insight Photonic Solutions, Inc. (United States)
P. Boschert, Insight Photonic Solutions, Inc. (United States)
J. Ensher, Insight Photonic Solutions, Inc. (United States)
M. Crawford, Insight Photonic Solutions, Inc. (United States)
D. Derrickson, California Polytechnic State Univ., San Luis Obispo (United States)
A. D. Kersey, Insight Photonic Solutions, Inc. (United States)


Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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