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Optical frequency domain reflectometry based on Brillouin dynamic grating in polarization maintaining fiber

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Optical frequency-domain reflectometry based on Brillouin dynamic grating (BDG) in polarization maintaining fiber is proposed and experimentally demonstrated for high resolution distributed measurement of Brillouin gain spectra. Distributed strain measurement for a 10.3 m PMF is performed with 1 cm spatial resolution in the feasibility test.

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