Fiber sensor identification based on incoherent Rayleigh backscatter measurements in the frequency domain

Max Koeppel; Rainer Engelbrecht; Stefan Werzinger; Bernhard Schmauss

doi:10.1117/12.2263459

23 April 2017 Fiber sensor identification based on incoherent Rayleigh backscatter measurements in the frequency domain

Max Koeppel, Rainer Engelbrecht, Stefan Werzinger, Bernhard Schmauss

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103232Q (2017) https://doi.org/10.1117/12.2263459
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

In this work, a fiber identification method based on incoherent optical frequency domain reflectometry (IOFDR) measurements is introduced. The proposed method uses the characteristic interference pattern of IOFDR Rayleigh backscatter measurements with a broadband light source to unambiguously recognize different initially scanned fiber segments. The recognition is achieved by cross-correlating the spatially resolved Rayleigh backscatter profile of the fiber segment under test with a initially measured and stored backscatter profile. This profile was found to be relatively insensitive to temperature changes. It is shown that identification is possible even if the fiber segment in question is installed subsequent to 300m of lead fiber.

Citation Download Citation

Max Koeppel, Rainer Engelbrecht, Stefan Werzinger, and Bernhard Schmauss "Fiber sensor identification based on incoherent Rayleigh backscatter measurements in the frequency domain", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232Q (23 April 2017); https://doi.org/10.1117/12.2263459

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