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Security System Responsive to Optical Fiber Having Bragg GratingAn optically responsive electronic lock is disclosed comprising an optical fiber serving as a key and having Bragg gratings placed therein. Further, an identification system is disclosed which has the optical fiber serving as means for tagging and identifying an object. The key or tagged object is inserted into a respective receptacle and the Bragg gratings cause the optical fiber to reflect a predetermined frequency spectra pattern of incident light which is detected by a decoder and compared against a predetermined spectrum to determine if an electrical signal is generated to either operate the lock or light a display of an authentication panel.
Document ID
19970023687
Acquisition Source
Ames Research Center
Document Type
Other - Patent
Authors
Gary, Charles K.
(NASA Ames Research Center Moffett Field, CA United States)
Ozcan, Meric
(NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
August 17, 2013
Publication Date
May 27, 1997
Subject Category
Optics
Report/Patent Number
Patent Number: US-Patent-5,633,975
Patent Application Number: US-Patent-Appl-SN-572396
Patent Number: NASA-Case-ARC-12092-15-B
Accession Number
97N23969
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-5,633,975|NASA-Case-ARC-12092-15-B
Patent Application
US-Patent-Appl-SN-572396
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