Abstract
A co-propagating dual-wave interferometer- assisted Brillouin optical time domain analysis (DWI-BOTDA) integrated sensing system is proposed and experimentally demonstrated for high sampling rate dynamic sensing. Fast dynamic strain measurement is achieved by the DWI based on analyzing the relative phase variation between two co-propagating light waves with significantly improved dynamic strain measurement range (DSMR). Meanwhile, the BOTDA with high spatial resolution is employed to locate the dynamic events accurately. In the experiment, the enhancements on the DSMR and sensing stability in the DWI are validated. Then, the DWI-BOTDA is implemented to measure periodical mechanical vibration over 2 km sensing range with 10 kHz sampling rate and 2 m spatial resolution.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
