Magneto-optical resonant waveguide sensors

Optical waveguides – Directional optical modulation within an optical waveguide – Magneto-optic

Reexamination Certificate

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C385S012000

Reexamination Certificate

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11273259

ABSTRACT:
A waveguide magneto-optic sensor provides a signal indicative of the value and/or direction of a detected magnetic field by a spectral shift of the characteristic resonant spectral feature of the sensor is disclosed. The sensor does not suffer from vibrations, fiber bending or other light intensity noise and provides an absolute self-referencing signal. The sensor elements can easily be coupled to optical fibers and read with scanning spectrometers or scanning lasers calibrated against NIST-traceable gas absorption standards.

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