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Proceedings Paper

Thermal noise in optical fibers: Mach-Zehnder vs Sagnac interferometers
Author(s): Kjell Krakenes; Kjell Blotekjaer
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Paper Abstract

The impact of thermal noise in the fiber on the noise power and signal-to-noise ratio (SNR) of fiber-optic sensors is investigated, and sensors based on Sagnac and Mach- Zehnder interferometers are compared. Mach-Zehnder interferometers exhibit a slightly higher SNR at low frequencies whereas Sagnac interferometers may have a few dB higher SNR at high frequencies.

Paper Details

Date Published: 14 September 1994
PDF: 4 pages
Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); doi: 10.1117/12.184993
Show Author Affiliations
Kjell Krakenes, Norwegian Institute of Technology (Norway)
Kjell Blotekjaer, Norwegian Institute of Technology (Norway)


Published in SPIE Proceedings Vol. 2360:
Tenth International Conference on Optical Fibre Sensors
Brian Culshaw; Julian D. C. Jones, Editor(s)

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