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Proceedings Paper

Minimum detectable signal and optimal operating point in intensity noise-limited fiber optic gyroscopes
Author(s): Elnatan C. Ferreira; Fernando F. de Melo; J. A. Siqueira Dias
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Paper Abstract

The relative intensity noise in sinusoidally modulated fiber optics gyroscopes is analyzed in order to determine which is the value of the minimum detectable signal by the demodulator electronics circuits. The analysis is conducted for both the well known lock-in amplifier demodulator and the mean value demodulator (MVD). Numerical results show that, in intensity noise-limited fiber optics gyroscopes, the MVD allows for the demodulation of smaller signals when compared to the lock-in amplifier.

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66193S (2 July 2007); doi: 10.1117/12.738771
Show Author Affiliations
Elnatan C. Ferreira, Univ. of Campinas (Brazil)
Fernando F. de Melo, Univ. of Campinas (Brazil)
J. A. Siqueira Dias, Univ. of Campinas (Brazil)

Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors
Antonello Cutolo; Brian Culshaw; José Miguel López-Higuera, Editor(s)

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