Techniques and apparatus for improved spatial resolution for locating anomalies in optical fiber
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United States of America
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Dec 3, 2024
Grant Date -
May 18, 2023
app pub date -
Jan 13, 2023
filing date -
Jan 13, 2023
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Abstract
Methods of measuring an anomaly, any induced change in physical parameters such as strain, temperature, and so forth, in an optical fiber. One method may include launching a plurality of probe pulses from a probe source; recording a Brillouin scattering spectrum from a plurality of reflection signals generated in the optical fiber, responsive to the plurality of probe pulses; determining a relative motion between the optical fiber and the anomaly during the recording the Brillouin back-scattering spectrum; and dynamically adjusting the Brillouin back-scattering spectrum according to the relative motion, or performing an adjustment of the Brillouin back-scattering spectrum after acquisition of the Brillouin back-scattering spectrum.
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