High-sensitivity fiber-compatible optical acoustic sensor

Details High-sensitivity fiber-compatible optical acoustic sensor High-sensitivity fiber-compatible optical acoustic sensor

G - Physics

01

H

G01H 9/00 (2006.01)

Patent

CA 2606439

An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing substantially surrounding the at least one photonic crystal structure and mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.

L'invention concerne un détecteur acoustique comprenant au moins une structure cristalline photonique présentant au moins une résonance optique avec une fréquence de résonance et une forme de ligne de résonance. Le détecteur acoustique comporte aussi un logement entourant sensiblement au moins la structure cristalline photonique et mécaniquement relié à au moins la structure cristalline photonique. Au moins la fréquence de résonance et la forme de ligne de résonance réagit aux ondes acoustiques incidentes sur le logement.

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