Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer
Reexamination Certificate
2011-08-16
2011-08-16
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
By light interference
Using fiber or waveguide interferometer
Reexamination Certificate
active
07999946
ABSTRACT:
A sensor apparatus combines an optical sensor in which acceleration, acoustic velocity, or displacement (vibration) causes a corresponding shift in the center wavelength of the sensor output, coupled to a high speed interferometric interrogator, through an unbalanced fiber interferometer. The unbalanced interferometer functions to translate optical wavelength shift into phase shift, which is easily demodulated by the interrogator.
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Andersen James K.
Baker Gerald
Bush Ira Jeffrey
Cherbettchian Agop
Goldner Eric Lee
Chowdhury Tarifur
Cook Jonathon
Stradley Ronon Stevens & Young LLP
US Sensor Systems, Inc.
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