Integrated optical tamper sensor with planar waveguide

Title: Integrated optical tamper sensor with planar waveguide

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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:: Carson, R F; Casalnuovo, S A

Issue Date:: 1993-01-05

OSTI Identifier:: 6158559

Patent Number(s):: 5177352

Application Number:: PPN: US 7-711235

Assignee:: Dept. of Energy, Washington, DC (United States)

DOE Contract Number:: AC04-76DP00789

Resource Type:: Patent

Resource Relation:: Patent File Date: 6 Jun 1991

Country of Publication:: United States

Language:: English

Subject:: 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; INTRUSION DETECTION SYSTEMS; DESIGN; ABSORPTION; MATERIALS; POSITIONING; RADIATION DETECTORS; VISIBLE RADIATION; WAVEGUIDES; ALARM SYSTEMS; ELECTROMAGNETIC RADIATION; MEASURING INSTRUMENTS; RADIATIONS; SORPTION; 055001* - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects

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                    Carson, R F, and Casalnuovo, S A. Integrated optical tamper sensor with planar waveguide.  United States: N. p., 1993. 
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                    Carson, R F, & Casalnuovo, S A. Integrated optical tamper sensor with planar waveguide.  United States.

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                    Carson, R F, and Casalnuovo, S A. Tue .  
        "Integrated optical tamper sensor with planar waveguide".  United States.

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@article{osti_6158559,

  title        = {Integrated optical tamper sensor with planar waveguide},

  author       = {Carson, R F and Casalnuovo, S 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}

}

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Integrated optical tamper sensor with planar waveguide

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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.
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