Fiber-optic sensing of pressure and temperature

The use of a fiber-optic Mach-Zehnder interferometer to measure differences in temperature or pressure between two single-mode fiber arms is described. Temperature or pressure changes are observed as a motion of an optical interference fringe pattern. Values are calculated for the pressure and tempe...

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Veröffentlicht in:Applied Optics 1979-05, Vol.18 (9), p.1445-1448
1. Verfasser: Hocker, G B
Format: Artikel
Sprache:eng
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Zusammenfassung:The use of a fiber-optic Mach-Zehnder interferometer to measure differences in temperature or pressure between two single-mode fiber arms is described. Temperature or pressure changes are observed as a motion of an optical interference fringe pattern. Values are calculated for the pressure and temperature dependence of the fringe motion. Pressure and temperature measurements are made with the interferometer, and the experimental values for sensitivity are in good agreement with those calculated.
ISSN:1559-128X
0003-6935
1539-4522
DOI:10.1364/AO.18.001445