Abstract
We have built two optical fiber strainmeters at our research facilities in southern California: one in the lab and another at Piñon Flat Geophysical Observatory. Using single mode optical fiber which is clamped at both ends, we measure strain of the fiber inter-ferometrically. To interpret these results, the temperature coefficient and strain coefficient of the refractive index of fibers under tension have been determined. We have also carried out stability experiments on the fibers over long periods of time (months to years). Direct comparison with a conventional evacuated-path Michelson interferometer establishes the merits and relative quality of an optical fiber strainmeter.
© 1988 Optical Society of America
PDF ArticleMore Like This
Huicong Li, Wenzhu Huang, Li Li, and Wentao Zhang
Th6.86 Optical Fiber Sensors (OFS) 2023
Wentao Zhang, Dongliang Lu, Wenzhu Huang, Wenyi Liu, Li Wang, Yingbo Luo, Li Liu, Li Li, and Fangyu Tao
Su3B.6 Asia Communications and Photonics Conference (ACP) 2018
Liu Aichun, Fan Wenjuan, and Fan Lianglong
M1B.2 Asia Communications and Photonics Conference (ACP) 2018