Optical Sensor System Utilizing Bragg Grating Sensors
Patent, Filed 28 Jun 96, patented 21 Oct 97
DEPARTMENT OF THE NAVY WASHINGTON DC
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An optical system for detecting perturbations indicative of the performance of the piece of equipment being monitored is disclosed. The optical system comprises sensors each of which use Bragg gratings induced therein and wherein the Bragg gratings are arranged into a preselected distribution and each Bragg grating returns, when subjected to incident light, a narrowbeam signal identified by a predetermined wavelength. The optical system utilizes at least one interferometer whose operation is interlinked with optical mul tiplexing techniques, such as differentiate cross multiplying and time division multiplexing.
- Optical Detection and Detectors