Interferometric optical time-domain reflectometry for distributed optical-fiber sensing.

  title={Interferometric optical time-domain reflectometry for distributed optical-fiber sensing.},
  author={S V Shatalin and V N Treschikov and A. J. Rogers},
  journal={Applied optics},
  volume={37 24},
The technique of optical time-domain reflectometry 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 optical time-domain reflectometry. A distributed interferometric sensor arrangement that employs this technique is investigated experimentally, and a satisfactory interrogation of more… CONTINUE READING
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