Time-expanded phase-sensitive optical time-domain reflectometry.

ABSTRACT: Phase-sensitive optical time-domain reflectometry (ΦOTDR) is a well-established technique that provides spatio-temporal measurements of an environmental variable in real time. This unique capability is being leveraged in an ever-increasing number of applications, from energy transportation or civil security to seismology. To date, a wide number of different approaches have been implemented, providing a plethora of options in terms of performance (resolution, acquisition bandwidth, sensitivity or range). However, to achieve high spatial resolutions, detection bandwidths in the GHz range are typically required, substantially increasing the system cost and complexity. Here, we present a novel ΦOTDR approach that allows a customized time expansion of the received optical traces. Hence, the pre

SUBMITTER: Soriano-Amat M 

PROVIDER: S-EPMC7940432 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature