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Proceedings Paper

Optical fiber refractive index sensor with reduced thermal sensitivity based on Superimposed Long-Period Gratings
Author(s): G. E. Silva; P. Caldas; J. C. Santos; J. L. Santos
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Paper Abstract

In this paper, we report the development of a reduced temperature sensitivity optical fiber sensor for refractive index measurement based on Superimposed Long-Period Gratings (SLPG) inscribed by the electric arc technique in standard fiber. The reduced sensitivity to temperature is achieved by calculation of the difference between resonance wavelengths of two guided cladding modes.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571S (2 June 2014); doi: 10.1117/12.2059661
Show Author Affiliations
G. E. Silva, Univ. de São Paulo (Brazil)
P. Caldas, INESC Porto (Portugal)
Instituto Politécnico de Viana do Castelo (Portugal)
J. C. Santos, Univ. de São Paulo (Brazil)
J. L. Santos, INESC Porto (Portugal)
Univ. do Porto (Portugal)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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