Buried fiber intrusion detection sensor with minimal false alarm rates

Jeff Bush; Carol A. Davis; Pepe G. Davis; Allen Cekorich; Fred P. McNair

doi:10.1117/12.372970

9 December 1999 Buried fiber intrusion detection sensor with minimal false alarm rates

Jeff Bush, Carol A. Davis, Pepe G. Davis, Allen Cekorich, Fred P. McNair

Proceedings Volume 3860, Fiber Optic Sensor Technology and Applications; (1999) https://doi.org/10.1117/12.372970
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

A novel design approach for a highly reliable buried intrusion detection sensor is described. The design involves the use of a low cost depolarized Sagnac fiber interferometer with a 'sensing loop' consisting of a delay line and buried fiber segment. The intrusion sensor is configured for an 'all fiber' remote deployment where active components (source, receiver, demodulator) are located separately and connected to the sensor through an insensitive fiber tether. A robust and cost effective buried sensor 'mat' design was developed. This design enabled high sensitivity as well as ease of deployment. Sensors were built and evaluated. Test results indicate an effective design.

Citation Download Citation

Jeff Bush, Carol A. Davis, Pepe G. Davis, Allen Cekorich, and Fred P. McNair "Buried fiber intrusion detection sensor with minimal false alarm rates", Proc. SPIE 3860, Fiber Optic Sensor Technology and Applications, (9 December 1999); https://doi.org/10.1117/12.372970

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