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Title: Integrated optical tamper sensor with planar waveguide

Abstract

A monolithic optical tamper sensor, comprising an optical emitter and detector, connected by an optical waveguide and placed into the critical entry plane of an enclosed sensitive region, the tamper sensor having a myriad of scraps of a material optically absorbent at the wavelength of interest, such that when the absorbent material is in place on the waveguide, an unique optical signature can be recorded, but when entry is attempted into the enclosed sensitive region, the scraps of absorbent material will be displaced and the optical/electrical signature of the tamper sensor will change and that change can be recorded.

Inventors:
 [1];  [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
AT&T
OSTI Identifier:
868627
Patent Number(s):
5177352
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G08 - SIGNALLING G08B - SIGNALLING OR CALLING SYSTEMS
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
integrated; optical; tamper; sensor; planar; waveguide; monolithic; comprising; emitter; detector; connected; placed; critical; entry; plane; enclosed; sensitive; region; myriad; scraps; material; optically; absorbent; wavelength; unique; signature; recorded; attempted; displaced; electrical; change; integrated optical; optical waveguide; sorbent material; optical wave; tamper sensor; integrated optic; optical tamper; /250/

Citation Formats

Carson, Richard F, and Casalnuovo, Stephen A. Integrated optical tamper sensor with planar waveguide. United States: N. p., 1993. Web.
Carson, Richard F, & Casalnuovo, Stephen A. Integrated optical tamper sensor with planar waveguide. United States.
Carson, Richard F, and Casalnuovo, Stephen A. Fri . "Integrated optical tamper sensor with planar waveguide". United States. https://www.osti.gov/servlets/purl/868627.
@article{osti_868627,
title = {Integrated optical tamper sensor with planar waveguide},
author = {Carson, Richard F and Casalnuovo, Stephen A},
abstractNote = {A monolithic optical tamper sensor, comprising an optical emitter and detector, connected by an optical waveguide and placed into the critical entry plane of an enclosed sensitive region, the tamper sensor having a myriad of scraps of a material optically absorbent at the wavelength of interest, such that when the absorbent material is in place on the waveguide, an unique optical signature can be recorded, but when entry is attempted into the enclosed sensitive region, the scraps of absorbent material will be displaced and the optical/electrical signature of the tamper sensor will change and that change can be recorded.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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