Optical resonator single‐mode fiber hydrophone

Autor:	Donald J. Albares, Matthew N. McLandrich
Rok vydání:	1984
Předmět:	Physics Acoustics and Ultrasonics business.industry Single-mode optical fiber Physics::Optics Polarization-maintaining optical fiber Output coupler Graded-index fiber Transverse mode Optics Arts and Humanities (miscellaneous) Fiber Bragg grating Fiber optic sensor Dispersion-shifted fiber business
Zdroj:	The Journal of the Acoustical Society of America. 76:1873-1873
ISSN:	0001-4966
DOI:	10.1121/1.391602
Popis:	A hydrophone remotely senses impinging acoustic energy. Light output from a laser is split and launched into a single-mode fiber which transmits it to an optical resonator at its end. The resonator is made up of a fixed fiber end having a dielectric coating and a movable mirror which is displaced in response to an incident acoustic signal. The acoustic signal displaces the mirror so that mirror movement modulates the intensity of the reflected beam which is transmitted back through the single-mode fiber and received at a detector. The frequency and magnitude of the reflected beam yield acoustic signal information.
Databáze:	OpenAIRE
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