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:
-
- 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 G01 - MEASURING G01V - GEOPHYSICS
G - PHYSICS G08 - SIGNALLING G08B - SIGNALLING OR CALLING SYSTEMS
- 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 = {Fri Jan 01 00:00:00 EST 1993},
month = {Fri Jan 01 00:00:00 EST 1993}
}
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