Accession Number : ADD016114
Title : Optical Fiber Electromagnetic Radiation Detector.
Descriptive Note : Patent Application, Filed 30 Sep 92,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Bobb, Lloyd
Report Date : 30 Sep 1992
Pagination or Media Count : 12
Abstract : Apparatus is provided to detect electromagnetic radiation, in which a radiation-absorbing element is disposed on a short section of an optical waveguide to provide a thermal interface there between. Radiation is absorbed by the element, which thereby heats the waveguide, causing it to change its optical pathlength in proportion to the radiation absorbed. Interferometer apparatus is connected to measure this change in optical pathlength as a change in the interference condition. This device is highly sensitive and can be operated at room temperature.
Descriptors : *ELECTROMAGNETIC RADIATION, *OPTICAL WAVEGUIDES, *INFRARED DETECTORS, INTERFACES, PATENT APPLICATIONS, PATHS, INTERFEROMETERS, RADIATION, ROOM TEMPERATURE, ELECTROMAGNETIC INTERFERENCE, OPTICAL INTERFEROMETERS
Subject Categories : Infrared Detection and Detectors
Fiber Optics and Integrated Optics
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE