Optical inclinometer based on fibre-taper-modal Michelson interferometer

L. M. N. Amaral; O. Frazão; J. L. Santos; A. B. Lobo Ribeiro

doi:10.1117/12.866083

8 September 2010 Optical inclinometer based on fibre-taper-modal Michelson interferometer

L. M. N. Amaral, O. Frazão, J. L. Santos, A. B. Lobo Ribeiro

Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76530J (2010) https://doi.org/10.1117/12.866083
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal

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.

Citation Download Citation

L. M. N. Amaral, O. Frazão, J. L. Santos, and A. B. Lobo Ribeiro "Optical inclinometer based on fibre-taper-modal Michelson interferometer", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76530J (8 September 2010); https://doi.org/10.1117/12.866083

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