Title :
Distributed fiber-optic stress sensor by synthesis of the optical coherence function
Author :
Saida, T. ; Hotate, K.
Author_Institution :
Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan
fDate :
4/1/1997 12:00:00 AM
Abstract :
A distributed fiber-optic stress sensor by synthesis of the optical coherence function is proposed. This system can obtain polarization coupling distribution in a polarization maintaining fiber due to lateral stress, using neither mechanical moving parts nor further calculations. In experiments, the spatial resolution of about 9 m and the measurable range of about 1040 m are demonstrated.
Keywords :
fibre optic sensors; intelligent sensors; light coherence; optical fibre polarisation; reflectometry; stress measurement; 1040 m; distributed fiber-optic stress sensor; lateral stress; measurable range; optical coherence function; polarization coupling distribution; polarization maintaining fiber; spatial resolution; synthesis; Coherence; Frequency modulation; Optical feedback; Optical fiber polarization; Optical fiber sensors; Optical interferometry; Optical modulation; Optical sensors; Spatial resolution; Stress measurement;
Journal_Title :
Photonics Technology Letters, IEEE
