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Proceedings Paper

Spectral technique for the simultaneous measurement of pressure and temperature
Author(s): Francois Seguin; S. Iraj Najafi
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Paper Abstract

A three-branch integrated-optic Mach-Zehnder interferometer is proposed for the simultaneous measurement of pressures and temperature. A broadband source coupled with a spectrometer is used to perform phase measurements independently from transmission loss fluctuations. Fast Fourier transform techniques applied to the transmitted spectrum allow demultiplexing of the signal from each pair of branches. Various correlation criteria are applied to establish pressure and temperature values from fractional phase measurements.

Paper Details

Date Published: 10 January 1996
PDF: 7 pages
Proc. SPIE 2695, Functional Photonic and Fiber Devices, (10 January 1996); doi: 10.1117/12.229971
Show Author Affiliations
Francois Seguin, Canadian Marconi Co. and Ecole Polytechnique de Montreal (Canada)
S. Iraj Najafi, Ecole Polytechnique de Montreal (Canada)

Published in SPIE Proceedings Vol. 2695:
Functional Photonic and Fiber Devices
S. Iraj Najafi; Mario Nicola Armenise, Editor(s)

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