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Proceedings Paper

Optical inclinometer based on fibre-taper-modal Michelson interferometer
Author(s): L. M. N. Amaral; O. Frazão; J. L. Santos; A. B. Lobo Ribeiro
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Paper Abstract

An inclinometer sensor based on optical fibre-taper-modal Michelson interferometer is demonstrated. The magnitude of the tilt (bending angle of the fibre taper interferometer) is obtained by passive interferometric interrogation based on the generation of two quadrature phase-shifted signals from two fibre Bragg gratings. Optical phase-to-rotation sensitivity of 1.13 rad/degree with a 14 mrad/√Hz resolution is achieved.

Paper Details

Date Published: 9 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76530J (9 September 2010); doi: 10.1117/12.866083
Show Author Affiliations
L. M. N. Amaral, INESC Porto (Portugal)
O. Frazão, INESC Porto (Portugal)
J. L. Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)
A. B. Lobo Ribeiro, Univ. Fernando Pessoa (Portugal)


Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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