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Proceedings Paper

Unambiguous sawtooth fringe counting for an active homodyne demodulated interferometric strain gauge
Author(s): Norbert Fuerstenau; Walter Schmidt
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Paper Abstract

Feedback of the interference signal of an imbalanced Michelson interferometer to the driver of the semiconductor laser source gives rise to asymmetric, sawtooth like fringes under fiber strain which is utilized for elimination of the fringe counting ambiguity.

Paper Details

Date Published: 14 September 1994
PDF: 4 pages
Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); doi: 10.1117/12.185066
Show Author Affiliations
Norbert Fuerstenau, German Aerospace Research Establishment DLR (Germany)
Walter Schmidt, German Aerospace Research Establishment DLR (Germany)


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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