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Proceedings Paper

Refractive index sensitivity in etched FBG in the visible range
Author(s): Jean F. Kuhne; Rafael B. Nadas; Patricia L. Inácio; Ismael Chiamenti; Ricardo C. Kamicawachi; Hypolito José Kalinowski
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Paper Abstract

A visible fiber Bragg grating (Vis-FBG) with wavelength peak centered at 673.07 nm was inscribed in a multimode fiber designed for infrared (IR) operation using a femtosecond (fs) laser emitting at 248 nm. The fiber cladding is removed by chemical etching in hydrofluoric acid solution (40%). The sensor refractive index response is determined by dipping the sensor into diluted glycerin solution at different concentrations with refractive index range from 1.3328 to 1.4607. The Vis-FBG performance is compared with an IR etched FBG (EFBG) with similar diameter. The sensitivity found for the Vis-FBG sensor is 15.71nm/RIU with a 6.34 x 10-3 RIU resolution for a refractive index of 1.4607.

Paper Details

Date Published: 22 August 2017
PDF: 5 pages
Proc. SPIE 10453, Third International Conference on Applications of Optics and Photonics, 104531R (22 August 2017); doi: 10.1117/12.2272227
Show Author Affiliations
Jean F. Kuhne, Univ. Tecnológica Federal do Paraná (Brazil)
Rafael B. Nadas, Univ. Tecnológica Federal do Paraná (Brazil)
Patricia L. Inácio, Univ. Tecnológica Federal do Paraná (Brazil)
Ismael Chiamenti, Univ. Tecnológica Federal do Paraná (Brazil)
Ricardo C. Kamicawachi, Univ. Tecnológica Federal do Paraná (Brazil)
Hypolito José Kalinowski, Univ. Federal Fluminense (Brazil)


Published in SPIE Proceedings Vol. 10453:
Third International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. M. Martins Costa, Editor(s)

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