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
      Physical Chemistry
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE