Location of vibrational disturbance using a serial array of identical low-finesse fiber Fabry-Perot interferometers

Rodolfo Martínez Manuel; M. G. Shlyagin; S. V. Miridonov; J. Meyer

doi:10.1117/12.866491

9 September 2010 Location of vibrational disturbance using a serial array of identical low-finesse fiber Fabry-Perot interferometers

Rodolfo Martínez Manuel, M. G. Shlyagin, S. V. Miridonov, J. Meyer

Author Affiliations +

Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76533U (2010) https://doi.org/10.1117/12.866491
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal

Abstract

An optical fiber sensor system for location of a vibrational disturbance along the fiber is presented. The sensor system is based on a serial array of identical F-P interferometers, formed directly in the single mode SMF-28e fiber by pairs of fiber Bragg gratings with reflectivity of 0.04 % each. Interferometers were interrogated by a DFB diode laser which was intensity modulated at 10 kHz. A method for localization of a disturbed interferometer and experimental results for a serial array of 14 sensors are presented. Simple sensor configuration and the use of low-frequency components make it potentially inexpensive and suitable for applications where a continuous monitoring of long structures has to be performed for appearance of vibrations.

Citation Download Citation

Rodolfo Martínez Manuel, M. G. Shlyagin, S. V. Miridonov, and J. Meyer "Location of vibrational disturbance using a serial array of identical low-finesse fiber Fabry-Perot interferometers", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76533U (9 September 2010); https://doi.org/10.1117/12.866491

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