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Proceedings Paper

Spread spectrum technique for passive multiplexing of interferometric optical fiber sensors
Author(s): Deepak G. Uttamchandani; Hamed S. Al-Raweshidy
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Paper Abstract

Two novel techniques for multiplexing interferometric optical fiber sensors have been developed. The techniques use spread spectrum modulation of a semiconductor laser and electronic or electro-optic correlation detection of the returned signals from a network of interferometric sensors. A network consisting of two interferometric sensors in parallel has been assembled. Initial results from our experiments show that while the interrogation system monitors a specific sensor, the signals from other sensors in the network can be suppressed by over 25 dB.

Paper Details

Date Published: 1 August 1991
PDF: 8 pages
Proc. SPIE 1511, Fiber Optic Sensors: Engineering and Applications, (1 August 1991); doi: 10.1117/12.45994
Show Author Affiliations
Deepak G. Uttamchandani, Univ. of Strathclyde (United Kingdom)
Hamed S. Al-Raweshidy, Univ. of Strathclyde (United Kingdom)


Published in SPIE Proceedings Vol. 1511:
Fiber Optic Sensors: Engineering and Applications
Anastasius J.A. Bruinsma; Brian Culshaw, Editor(s)

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