Optical Time Domain Reflectometry
Optical Time Domain Reflectometry
Measurement of the elapsed time and intensity of light
reflected on
optical fibre using an optical time domain
reflectometer. The reflectometer can compute the distance to
problems on the fibre such as attenuation and breaks, making
it a useful tool in optical network trouble-shooting.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive
Chang, "Signal-to-noise ratio enhancement based on empirical mode decomposition in phase-sensitive
optical time domain reflectometry systems," Sensors, vol.
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Optical Time Domain Reflectometry (OTDR) based DTS systems
The intrusion sensing technique using Rayleigh scattering in a single-mode optical fiber had the advantage of providing distance information; however, the sensitivity in
optical time domain reflectometry (OTDR) configuration [12] was not sufficient for underground burial application.
Therefore, based on optical fiber sensing principles,
optical time domain reflectometry (OTDR) [10-12], and using the spatial structure of the beam, a new optical fiber sensor for landslides monitoring, COFT, was invented.
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