23 April 2017 Brillouin optical time domain analysis enhanced by tailored pump compensation
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103239A (2017) https://doi.org/10.1117/12.2267533
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
Brillouin optical time domain analysis (BOTDA) enhanced by the tailored compensation for the propagation loss of a pump pulse is experimentally demonstrated for long-distance and high-resolution distributed sensing. Distributed Brillouin amplification (DBA) of the pump pulse is applied in addition to an ordinary BOTDA configuration, where the frequency modulation with time-dependent amplitude variation is introduced to the DBA pump for tailored compensation for the propagation loss. In experiments, the distribution map of the Brillouin frequency along a 51.2 km test fiber is measured with a spatial resolution of 50 cm and a measurement error (σ) of less than 1 MHz.
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Young Hoon Kim, Kwang Yong Song, "Brillouin optical time domain analysis enhanced by tailored pump compensation", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239A (23 April 2017); doi: 10.1117/12.2267533; https://doi.org/10.1117/12.2267533
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