Accession Number : ADD015944
Title : Fiber Optic Michelson Sensor and Arrays with Passive Elimination of Polarization Fading and Source Feedback Isolation.
Descriptive Note : Patent, Filed 1 Sep 92, patented 27 Apr 93,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Kersey, Alan D
Report Date : 27 Apr 1993
Pagination or Media Count : 15
Abstract : A fiber optic Michelson interferometric sensor system with passive elimination of polarization fading and source feedback isolation is disclosed. In a preferred embodiment, an optical source provides light of a first polarization state to a polarization selective element. Output light from the polarization selective element passes through a length of optical fiber into a Michelson interferometric sensor which utilizes a Faraday rotator/mirror assembly, that is coupled to distal ends of sensing and reference arms of the Michelson interferometer, to provide for the passive elimination of polarization fading. The polarization selective element at the output of the optical source provides isolation of the optical source from the Michelson interferometer sensor.
Descriptors : *MICHELSON INTERFEROMETERS, *PATENTS, *OPTICAL DETECTORS, ASSEMBLY, FEEDBACK, FIBER OPTICS, INTERFEROMETERS, ISOLATION, LIGHT, MIRRORS, POLARIZATION, LIGHT SOURCES, BIREFRINGENCE, SEMICONDUCTOR LASERS, SEMICONDUCTOR DIODES
Subject Categories : Optical Detection and Detectors
Fiber Optics and Integrated Optics
Distribution Statement : APPROVED FOR PUBLIC RELEASE