6 papers
Highly efficient wideband and polarization-insensitive SMF-ARF coupling strategy with low back-reflection
Yi Su, Xuchen Hua, Bingyan Xue +3
We propose a lensed-fiber based coupling strategy for low-loss interconnection between single-mode fibers and anti-resonant fibers. By optimizing structural and geometric parameter…
Unsupervised super-spatial-resolution Brillouin frequency shift extraction based on physical enhanced spatial resolution neural network
Zhao Ge, Hao Wu, zhiyong Zhao +2
Spatial resolution (SR), a core parameter of Brillouin optical time-domain analysis (BOTDA) sensors, determines the minimum fiber length over which physical perturbations can be ac…
Enabling variable high spatial resolution retrieval from a long pulse BOTDA sensor
Zhao Ge, Li Shen, Can Zhao +3
In the field of Internet of Things, there is an urgent need for sensors with large-scale sensing capability for scenarios such as intelligent monitoring of production lines and urb…
Interference fading suppression in Phi-OTDR using space-division multiplexed probes
Zhiyong Zhao, Huan Wu, Junhui Hu +5
We propose and experimentally demonstrate a novel interference fading suppression method for phase-sensitive optical time domain reflectometry (Phi-OTDR) using space-division multi…
Improving the spatial resolution of a BOTDA sensor using deconvolution algorithm
Li Shen, Zhiyong Zhao, Can Zhao +3
Spatial resolution improvement from an acquired measurement using long pulse is developed for Brillouin optical time domain analysis (BOTDA) systems based on the total variation de…
BOTDA using OFDM channel estimation
Can Zhao, Ming Tang, Liang Wang +7
A novel Brillouin optical time-domain analysis (BOTDA) system is proposed using intensity-modulated optical orthogonal frequency division multiplexing probe signal and direct detec…