Title
Distributed Sensing Based on Interferometry and Polarization Methods for Use in Fibre Infrastructure Protection.
Abstract
Fibre optic infrastructures are very important, and therefore, it is necessary to protect them from fibre cuts. Most fibre cuts are caused by digging activity, and many network operators seek appropriate solutions enabling detection of possible unexpected events (predict these cuts) and subsequent network outages. In most cases, there is no need to locate events, and only information regarding the occurrence of the event is sufficient. Direct detection-based distributed fibre optic sensing systems appear to be an appropriate solution, allowing digging to be detected before the fibre breaks. The average power of such signals is relatively small, and there is no interference with other signals in the fibre. We performed laboratory measurements to compare the sensitivity and accuracy of interferometric and polarization systems for acoustic vibrations. In the case of interferometric systems, the reference and sensing arms were in the same cable, and both were subjected to acoustic vibrations.
Year
DOI
Venue
2019
10.3390/s19081810
SENSORS
Keywords
Field
DocType
distributed sensing,digging detection,fibre infrastructure protection,interferometer,polarization
Optical fiber,Sensing system,Fiber,Polarization (waves),Electronic engineering,Interferometry,Interference (wave propagation),Engineering,Unexpected events,Vibration
Journal
Volume
Issue
ISSN
19
8
1424-8220
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Petr Munster146.61
Tomas Horvath201.35
Josef Vojtech315.55