Abstract
A high sensitivity curvature sensor based on single-mode-tapered multimode–single-mode (STMS) fiber structure has been proposed and demonstrated theoretically and experimentally. Due to elastic-optical effect, light field distribution of the STMS structure would be asymmetric when bending is applied, resulting in a profound effect on the transmission characteristics of the STMS structure. The experimental results show a good agreement with the trend of the theoretical predictions. Adopting the intensity demodulation in experiments, an average sensitivity of −21.734 dB/m−1 over the range of 0.7064 to 1.9129 m−1 and the maximum sensitivity of −144.876 dB/m−1 at the curvature of 1.9129 m−1 have been achieved. Besides, the dependence of temperature on the transmission spectrum of this curvature sensor has been investigated, showing a low temperature cross-sensitivity. Because of these superior properties, this curvature sensor could find useful applications in architecture, mechanical engineering, and medical science.
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.
