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Proceedings Paper

Interferometric optical time-domain reflectometry for distributed optical fiber sensing
Author(s): Sergey V. Shatalin; Vladimir N. Treschikov; Alan J. Rogers
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Paper Abstract

The technique of optical-time domain reflectometry (OTDR) is analyzed to determine the effect of an optical phase modulation on light backscattered in an optical fiber. It is shown that the spatial distribution, along the fiber, of an external phase modulation can be measured with a spatial resolution close to that of the OTDR. A distributed interferometric sensor arrangement employing this technique has been investigated experimentally, and a satisfactory interrogation of more than one thousand resolution intervals has been demonstrated.

Paper Details

Date Published: 6 July 1998
PDF: 11 pages
Proc. SPIE 3479, Laser Interferometry IX: Applications, (6 July 1998); doi: 10.1117/12.316448
Show Author Affiliations
Sergey V. Shatalin, Institute of Radio Engineering and Electronics (Russia)
Vladimir N. Treschikov, Institute of Radio Engineering and Electronics (Russia)
Alan J. Rogers, King's College London (United Kingdom)


Published in SPIE Proceedings Vol. 3479:
Laser Interferometry IX: Applications
Ryszard J. Pryputniewicz; Gordon M. Brown; Werner P. O. Jueptner, Editor(s)

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