Abstract

An optical fiber whose end face is polished to an angle θ close to the critical angle θ_c is proposed as an acoustical detector probe. Since θ_c can be tuned by optical material dispersion of the glass fiber to bring θ_c close to θ, probe sensitivity can be controlled. Also, tuning would allow the probe to be either phase or amplitude modulated by the acoustical wave, depending on whether θ_c were tuned to greater than or less than the incident angle θ.

© 1980 Optical Society of America

Proposal for detection of magnetic fields through magnetostrictive perturbation of optical fibers

Amnon Yariv and Harry V. Winsor
Opt. Lett. 5(3) 87-89 (1980)

Detector for an optical-fiber acoustic sensor using dynamic holographic interferometry

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Acoustic sensing with a single coiled monomode fiber

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Acoustic sensitivity predictions of single-mode optical fibers using Brillouin scattering

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