TY - JOUR
AU1 - Dong, Yongkang
AU2 - Ba, Dexin
AU3 - Jiang, Taofei
AU4 - Zhou, Dengwang
AU5 - Lu, Zhiwei
AB - We demonstrate a high-spatial-resolution fast Brillouin optical time-domain analysis scheme based on frequency agility and differential double-pulse for distributed dynamic measurement. The frequency-agility probe wave is obtained from the second-order sideband of modulated light by using frequency-agility microwave signal from a wideband arbitrary waveform generator. The differential double-pulse technique is proposed to improve the spatial resolution while keeping the capability of dynamic measurement. In experiment, a spatial resolution of 20 cm is achieved by using a 52/50 ns differential double-pulse, and the distributed vibration measurement is demonstrated over a 50-m Panda fiber with a maximum vibration frequency of up to 50 Hz. With only five averages, the standard deviation of the strain accuracy is of 14 μV.
TI - RETRACTED ARTICLE: Fast Brillouin Optical Fiber Sensor for Distributed Dynamic Measurement Based on Differential Double-Pulse
JF - Russian Physics Journal
DO - 10.1007/s11182-014-0176-z
DA - 2014-03-22
UR - https://www.deepdyve.com/lp/springer-journals/retracted-article-fast-brillouin-optical-fiber-sensor-for-distributed-TmA0L5yEOI
SP - 1297
EP - 1301
VL - 56
IS - 11
DP - DeepDyve
ER -