High-sensitivity fiber-compatible optical acoustic sensor

Optical waveguides – Optical waveguide sensor

Reexamination Certificate

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C385S007000, C385S013000, C385S027000, C385S037000, C385S038000, C385S125000, C385S129000, C356S480000, C073S655000

Reexamination Certificate

active

07809219

ABSTRACT:
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 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.

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