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Proceedings Paper

Close Loop FM Interferometric Remote Optical Fibre Sensor
Author(s): Uttam D. Giles; I . P . Culshaw B.
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Paper Abstract

Optical fibre interferometric sensors are described in which the path imbalance of the interferometer is measured by using a frequency modulated source. The technique is analogous to frequency modulated continuous wave (FMCW) radar. Optical FM techniques are described and initial results from a closed loop system presented. The interferometers are totally passive and their state can be read with high accuracy, depending on the total frequency excursion and output signal to noise ratio.

Paper Details

Date Published: 19 September 1983
PDF: 5 pages
Proc. SPIE 0412, Fiber Optic and Laser Sensors I, (19 September 1983); doi: 10.1117/12.935825
Show Author Affiliations
Uttam D. Giles, University College London (England)
I . P . Culshaw B., University College London (England)


Published in SPIE Proceedings Vol. 0412:
Fiber Optic and Laser Sensors I
Emery L. Moore; O. Glenn Ramer, Editor(s)

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