Open AccessMethod of calibration for fiber Bragg grating interrogators
Author(s) -
P. E. De Castro Faria Salgado
Publication year - 2012
Publication title -
optica pura y aplicada/óptica pura y aplicada
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.147
H-Index - 11
eISSN - 2171-8814
pISSN - 0030-3917
DOI - 10.7149/opa.45.3.361
Subject(s) - fiber bragg grating , calibration , phosfos , materials science , optics , physics , optical fiber , fiber optic sensor , polarization maintaining optical fiber , quantum mechanics
We have developed a method of calibration for Bragg grating interrogators that compares the response of the test equipment with a Bragg Grating simulator consisting in a tunable filter and an optical fiber mirror. The obtained simulated wavelength is measured with a reference interferometer calibrated at the Instituto de óptica del Consejo Superior de Investigaciones Científicas (IO-CSIC). This calibration method has been applied to calibrate various types of Bragg gratings interrogators: static and dynamic. The uncertainty in the absolute calibration of the interrogators is ±88 pm, which is mainly due to the spectral width of the filter that simulates the Bragg Grating. However, for a relative calibration the uncertainty is ±3 pm, dominated by the uncertainty in the calibration of the reference interferometer. © Sociedad Española de Óptica.Al Ministerio de Educación y Ciencia proyecto TEC2009‐14423‐C02‐00, a la Comunidad Autónoma de Madrid a través del proyecto FACTOTEM2 (S2009/ESP‐1781), al Ministerio de Fomento por los proyectos MIFFO (FOM‐ 77/07) e IZONE (FOM‐38/08).Peer Reviewe