6 June 2002 Measurement of small stress fluctuations in fused silica fibers using an optical microcavity sensor
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Proceedings Volume 4629, Laser Resonators and Beam Control V; (2002) https://doi.org/10.1117/12.469491
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States
Abstract
We report on the measurement of small stress fluctuations in loaded fused silica fibers using high-Q optical microcavity sensor with whispering-gallery modes. Axial force applied to the spherical whispering-gallery mode microcavity by the fiber attached in the polar area displaced the frequencies of whispering-gallery mode resonances, and enabled high-sensitivity measurement of the stress force variations. With quality factor of integrated microcavity sensor of (2-7)x107, the achieved spectral sensitivity of force measurement was <1x10-8 N/(root)Hz in the 102-103 Hz frequency range and about 2x10-10N/(root)Hz above 104 Hz.
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I. A. Bilenko, A. Samoilenko, Vladimir S. Ilchenko, "Measurement of small stress fluctuations in fused silica fibers using an optical microcavity sensor", Proc. SPIE 4629, Laser Resonators and Beam Control V, (6 June 2002); doi: 10.1117/12.469491; https://doi.org/10.1117/12.469491
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