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Proceedings Paper

Developments towards a fiber optic accelerometer with high responsivity and low crosstalk
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Paper Abstract

We analyze the crosstalk of compliant cylinder type fiber optical accelerometers using 3D finite element analysis. For a standard design we obtain vibrational modes (transversal and torsional) having their eigenfrequencies below the eigenfrequency of the principal mode, i.e. the longitudinal mode vibrating parallel to the axis of axial symmetry. Through the inclusion of two diaphragms we show that for this new topology the principal mode is the fundamental mode. We have constructed such topology and tested it. A responsivity of 2000 rad/g at an optical wavelength of 1550 nm and a crosstalk of -26 dB was achieved, ignoring one resonance.

Paper Details

Date Published: 16 November 2004
PDF: 8 pages
Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); doi: 10.1117/12.567336
Show Author Affiliations
Harald W. J. Gnewuch, Univ. of Kent/Canterbury (United Kingdom)
Benoit Barviau, Univ. des Sciences et Techniques de Lille (France)
Adrian Gh. Podoleanu, Univ. of Kent/Canterbury (United Kingdom)
David A. Jackson, Univ. of Kent/Canterbury (United Kingdom)


Published in SPIE Proceedings Vol. 5579:
Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers

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