Measurement of sensors with fiber Bragg gratings by laser interferometer

0422394 - ÚPT 2014 ME eng A - Abstract
Mikel, Břetislav - Čížek, Martin - Řeřucha, Šimon - Číp, Ondřej
Measurement of sensors with fiber Bragg gratings by laser interferometer.
21th annual International Conference on Advanced Laser Technologies ALT´13. Book of Abstracts. Budva: University of Montenegro, 2013. s. 47.
[ALT´13. Annual International Conference on Advanced Laser Technologies /21./. 16.09.2013-20.09.2013, Budva]
R&D Projects: GA MŠMT ED0017/01/01; GA TA ČR TA01010995; GA TA ČR(CZ) TA03010835
Institutional support: RVO:68081731
Keywords : fiber Bragg sensors * laser interferometry * optical spectrum analysis * fiber sensors
Subject RIV: BH - Optics, Masers, Lasers

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. Setup of the measurement of elongation of FBGs is in Fig. 1. The calibration of FBGs will be used for preparation and for the realization of the technology of measurement of shape deformation of concrete buildings.
Permanent Link: http://hdl.handle.net/11104/0228540