Figure-of-eight cavity fiber laser based torsion sensor

M. S. Ferreira; J. L. Santos; P. Mergo; O. Frazão

doi:10.1117/12.2027506

18 November 2013 Figure-of-eight cavity fiber laser based torsion sensor

M. S. Ferreira, J. L. Santos, P. Mergo, O. Frazão

Proceedings Volume 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications; 8785FB (2013) https://doi.org/10.1117/12.2027506
Event: 8th Ibero American Optics Meeting/11th Latin American Meeting on Optics, Lasers, and Applications, 2013, Porto, Portugal

Abstract

A torsion active sensor based on a figure-of-eight configuration is presented. The interferometric fiber loop mirror, composed by a section of photonic crystal fiber, also acts as a sensing element. When torsion is applied over a range of 180°, a sensitivity of 7.13 pm/degree is achieved. Besides, this configuration can also be used to measure optical power variations and it presents low sensitivity to temperature.

Citation Download Citation

M. S. Ferreira, J. L. Santos, P. Mergo, and O. Frazão "Figure-of-eight cavity fiber laser based torsion sensor", Proc. SPIE 8785, 8th Iberoamerican Optics Meeting and 11th Latin American Meeting on Optics, Lasers, and Applications, 8785FB (18 November 2013); https://doi.org/10.1117/12.2027506

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