Pulsed interferometric optical fibre sensor detecting wiretapping in long transmission lines

• Autorzy: Życzkowski M. , Karol M.

Identyfikatory

DOI

10.1016/j.opelre.2018.04.003

• Języki publikacji: EN

Abstrakty

EN

A modified optical fibre based Mach-Zehnder interferometer was applied as a sensor to detect wiretapping in long transmission optical fibre lines. The signal consisting of short pulses (around 1 ns) was launched to the input of the interferometer based on the polarization maintaining fibres and polarization elements. When the sensing line was undisturbed, detectors registered only a single pulse. The additional two side pulses appear, if the wiretapping attempt took place. For robust detection of any alarm situation we proposed two-criteria algorithm to minimize false alarm rate. Moreover, slow environmental fluctuations were continuously monitored and compensated by polarization controllers. We measured frequency characteristics of the sensor and performed a hundred wiretapping attempts, which proved high performance of the sensor.

Słowa kluczowe

EN

optical fibre sensor; Mach-Zehnder interferometer; quantum sensors

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2018
• Tom: Vol. 26, No. 2
• Strony: 183--187
• Opis fizyczny: Bibliogr. 12 poz., rys., wykr.

Twórcy

autor

Życzkowski M.

• Military University of Technology, Institute of Optoelectronics, 2 Urbanowicza Str., 00-908 Warsaw, Poland

autor

Karol M.

• Military University of Technology, Institute of Optoelectronics, 2 Urbanowicza Str., 00-908 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).