Accession Number : ADD018126
Title : Selective Multi-Chemical Fiber Optic Sensor.
Descriptive Note : Patent, Filed 31 Oct 94, patented 11 Jun 96.
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Sanghera, Jasbinder S ; Pureza, Pablo C ; Aggarwal, Ishwar D ; Nau, Gregory
Report Date : Jun 1996
Pagination or Media Count : 10
Abstract : A fiber optic sensor for detecting at least one chemical by evanescent wave spectroscopy comprises a generator of a light signal, a mirror for introducing the light signal into a fiber, a clad optical chalcogenide glass fiber. a mirror for directing the light signal from the fiber into a detector and a detector for detecting chemicals by the fiber. The fiber comprises a core and a clad having lower refractive index than the core enveloping and being in continuous contact with the core at least one region on the fiber completely or partially devoid of the clad, and a polymer disposed in the region having affinity for the chemical(s). There being a different polymer in each region if there is more than one region.
Descriptors : *FIBER OPTICS, *DETECTORS, *CHEMICAL DETECTION, MIRRORS, CORES, SPECTROSCOPY, POLYMERS, REFRACTIVE INDEX, LIGHT SOURCES, GLASS FIBERS, CLADDING, PATENTS, EVANESCENT WAVES
Subject Categories : Fiber Optics and Integrated Optics
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE