Abstract
We experimentally demonstrated a high sensitivity chaotic correlation fiber loop ring down sensing based on U-shaped fiber optical sensor. The U-shaped fiber optical sensors with different bending diameters were spliced into fiber loops with different cavity lengths to study the influence of cavity length and bending diameter on detection sensitivity. The relationship between cavity length and sensitivity was investigated theoretically and experimentally. The limit of sensitivity was analyzed theoretically and the highest sensitivity of 2253.390 μs−1RIU−1 in the refractive index range of 1.3347–1.3721 was realized experimentally. A handheld probe measuring device was obtained by combining short cavity fiber loop ring down and U-shaped fiber optical sensor, and the probe device can achieve the detection of hemoglobin level with the high sensitivity.
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.
