Integrated optical tamper sensor with planar waveguide

Carson, Richard F; Casalnuovo, Stephen A

Integrated optical tamper sensor with planar waveguide

Patent · Thu Dec 31 23:00:00 EST 1992

OSTI ID:868627

Carson, Richard F ^[1]; Casalnuovo, Stephen A ^[1]

Albuquerque, NM

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.

Research Organization:: AT & T CORP

DOE Contract Number:: AC04-76DP00789

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Number(s):: US 5177352

OSTI ID:: 868627

Country of Publication:: United States

Language:: English

References (6)

Vibration Sensor Using Integrated Optical Coupling Element Honkanen, S.; Tammela, S.; Koivisto, P. Springer Series in Optical Sciences https://doi.org/10.1007/978-3-540-39452-5_2	book	January 1985
Characteristics of optical guided modes in multilayer metal-clad planar optical guide with low-index dielectric buffer layer Yamamoto, Y.; Kamiya, T.; Yanai, H. IEEE Journal of Quantum Electronics, Vol. 11, Issue 9 https://doi.org/10.1109/JQE.1975.1068998	journal	September 1975
Integrated Optical Detectors Hunsperger, Robert G. Springer Series in Optical Sciences https://doi.org/10.1007/978-3-662-13521-1_15	book	January 1982
Sensor Applications of Low Finesse Integrated Optical Fabry-Perot Resonators George, H.; Hollenbach, U.; Söchtig, J. Springer Series in Optical Sciences https://doi.org/10.1007/978-3-540-39452-5_6	book	January 1985
A novel deposit/spin waveguide interconnection (DSWI) for semiconductor integrated optics Furuya, K.; Miller, B.; Coldren, L. IEEE Journal of Quantum Electronics, Vol. 18, Issue 10 https://doi.org/10.1109/JQE.1982.1071396	journal	October 1982
Semiconductor Components for Monolithic Applications Garmire, E. Topics in Applied Physics https://doi.org/10.1007/978-3-662-43208-2_6	book	January 1975

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Integrated optical tamper sensor with planar waveguide

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