Accession Number:

ADD018781

Title:

Optical Sensor System Utilizing Bragg Grating Sensors

Descriptive Note:

Patent, Filed 28 Jun 96, patented 21 Oct 97

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1997-10-21

Pagination or Media Count:

17.0

Abstract:

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.

Subject Categories:

  • Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE