With the rapid development and extensive applications of phase-sensitive optical time-domain reflectometry to long distance pipeline safety monitoring, it is still challenging to find a very effici…
The vibration recognition along the fiber is still a challenging problem in pipeline monitoring with distributed optical-fiber acoustic sensor (DAS), because the burying environments in a wide rang…
Atmospheric turbulence in free-space will distort the helical phase-front of vortex beams (VBs) and cause mode diffusion, seriously hindering the practical application of optical orbital angular mo…