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:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 869522
- Patent Number(s):
- 5351324
- Assignee:
- Regents of University of California, Office of Technology (Alameda, CA)
- Patent Classifications (CPCs):
-
G - PHYSICS G09 - EDUCATION G09F - DISPLAYING
- 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 = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}
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