Calibration of elongation of fiber Bragg gratings by laser interferometer

Bretislav Mikel; Martin Cizek; Milan Holik; Ondrej Cip

doi:10.1117/12.2035731

10 October 2013 Calibration of elongation of fiber Bragg gratings by laser interferometer

Bretislav Mikel, Martin Cizek, Milan Holik, Ondrej Cip

Proceedings Volume 8916, Sixth International Symposium on Precision Mechanical Measurements; 89161I (2013) https://doi.org/10.1117/12.2035731
Event: Sixth International Symposium on Precision Mechanical Measurements, 2013, Guiyang, China

Abstract

We present method of measurement of fiber Bragg gratings (FBG) stretching by laser interferometer. We are oriented to research, development and to methodology of the production and application of FBGs. The elongation of FBGs can calculated from frequency drift of the Bragg resonance wavelength and from the change of the grating period during stretching. The inhomogeneity of optical fibers and of the FBGs can induce change of the grating period (Bragg resonance wavelength) of FBG which can be nonlinear with elongation of the optical fiber with FBG. The calibration of FBGs will be used to preparation and to the realization of the technology of measurement of shape deformation of concrete buildings.

Citation Download Citation

Bretislav Mikel, Martin Cizek, Milan Holik, and Ondrej Cip "Calibration of elongation of fiber Bragg gratings by laser interferometer", Proc. SPIE 8916, Sixth International Symposium on Precision Mechanical Measurements, 89161I (10 October 2013); https://doi.org/10.1117/12.2035731

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