Characterization of the spatio-temporal response of optical fiber sensors to incident spherical waves
Veres IA, Burgholzer P, Berer T, Rosenthal A, Wissmeyer G, Ntziachristos V (2015)
Publication Type: Conference contribution
Publication year: 2015
Journal
Publisher: Elsevier
Book Volume: 70
Pages Range: 155-158
Conference Proceedings Title: Physics Procedia
Event location: Metz, FRA
DOI: 10.1016/j.phpro.2015.08.078
Abstract
A theoretical framework is presented for calculating the opto-acoustic response of optical fiber ultrasound sensors with several layers of coating. A harmonic point source generating a spherical wavefront with arbitrary position and frequency is assumed. The fiber is acoustically modeled by a layered cylinder on which spherical waves are scattered. The principle strains on the fiber axis are calculated from the scattering of the acoustic waves and used in a strain-optic model to calculate the phase shift of the guided modes. The theoretical results are compared to experimental data obtained with a sensing element based on a π-phase-shifted fiber Bragg grating and with photoacoustically generated ultrasonic signals.
Involved external institutions
Research Center for Non Destructive Testing (RECENDT)
Austria (AT)
Technische Universität München (TUM)
Germany (DE)
Austria (AT)
Technische Universität München (TUM)
Germany (DE)
How to cite
APA:
Veres, I.A., Burgholzer, P., Berer, T., Rosenthal, A., Wissmeyer, G., & Ntziachristos, V. (2015). Characterization of the spatio-temporal response of optical fiber sensors to incident spherical waves. In Nico F. Declercq (Eds.), Physics Procedia (pp. 155-158). Metz, FRA: Elsevier.
MLA:
Veres, Istvan A., et al. "Characterization of the spatio-temporal response of optical fiber sensors to incident spherical waves." Proceedings of the ICU International Congress on Ultrasonics, ICU 2015, Metz, FRA Ed. Nico F. Declercq, Elsevier, 2015. 155-158.
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