Title :
Sensing of dynamic strain via acousto-optic coupling in single-mode fiber
Author :
Alhassen, Fares ; Dashti, Pedram Z. ; Lee, Henry P.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Irvine, CA
fDate :
Oct. 30 2005-Nov. 3 2005
Abstract :
We demonstrate dynamic strain sensing using a fiber acousto-optic tunable filter (AOTF). The sensing mechanism is based on the shift of resonant wavelength of the AOTF filter in the presence of mechanical strain on the fiber. An input laser signal can thus be modulated by a dynamic strain. The modulation due to a low-frequency (~10 Hz) dynamic strain applied to the fiber AOTF was measured
Keywords :
acousto-optical filters; fibre optic sensors; strain sensors; acousto-optic coupling; dynamic strain sensing; fiber acousto-optic tunable filter; mechanical strain; resonant wavelength shift; Acoustic waves; Capacitive sensors; Filters; Optical attenuators; Optical fiber devices; Optical fiber polarization; Optical fiber sensors; Optical fibers; Resonance; Strain measurement;
Conference_Titel :
Sensors, 2005 IEEE
Conference_Location :
Irvine, CA
Print_ISBN :
0-7803-9056-3
DOI :
10.1109/ICSENS.2005.1597812
