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Title: Fiber optic security seal including plural Bragg gratings

Abstract

An optical security system enables the integrity of a container seal to be remotely interrogated. A plurality of Bragg gratings is written holographically into the core of at least one optical fiber placed about the container seal, where each Bragg grating has a predetermined location and a known frequency for reflecting incident light. A time domain reflectometer is provided with a variable frequency light output that corresponds to the reflecting frequencies of the Bragg gratings to output a signal that is functionally related to the location and reflecting frequency of each of the Bragg gratings.

Inventors:
 [1]
  1. Los Alamos, NM
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
869522
Patent Number(s):
US 5351324
Assignee:
Regents of University of California, Office of Technology (Alameda, CA)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fiber; optic; security; seal; including; plural; bragg; gratings; optical; enables; integrity; container; remotely; interrogated; plurality; written; holographically; core; placed; grating; predetermined; location; frequency; reflecting; incident; light; time; domain; reflectometer; provided; variable; output; corresponds; frequencies; signal; functionally; related; security seal; incident light; functionally related; variable frequency; fiber optic; optical fiber; predetermined location; light output; time domain; seal including; bragg gratings; domain reflectometer; /385/250/356/359/

Citation Formats

Forman, Peter R. Fiber optic security seal including plural Bragg gratings. United States: N. p., 1994. Web.
Forman, Peter R. Fiber optic security seal including plural Bragg gratings. United States.
Forman, Peter R. Sat . "Fiber optic security seal including plural Bragg gratings". United States. https://www.osti.gov/servlets/purl/869522.
@article{osti_869522,
title = {Fiber optic security seal including plural Bragg gratings},
author = {Forman, Peter R},
abstractNote = {An optical security system enables the integrity of a container seal to be remotely interrogated. A plurality of Bragg gratings is written holographically into the core of at least one optical fiber placed about the container seal, where each Bragg grating has a predetermined location and a known frequency for reflecting incident light. A time domain reflectometer is provided with a variable frequency light output that corresponds to the reflecting frequencies of the Bragg gratings to output a signal that is functionally related to the location and reflecting frequency of each of the Bragg gratings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

Patent:

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