Abstract
In this paper, a high resolution optical fiber micro-displacement measurement system is presented. The sensing signal is interrogated by using a single passband microwave photonic filter (MPF), which mainly consists of a broadband light source, a fiber Mach-Zehnder interferometer (MZI), an electro-optic modulator (EOM) and a long-distance single-mode optical fiber. Since the central frequency of the MPF depends on the FSR of the MZI, the displacement can be estimated by detecting the central frequency shift of the MPF. The proposed approach is experimentally evaluated. High sensitivity displacement sensing with a sensitivity of 2.75 MHz/μm is experimentally demonstrated.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.