Abstract
An in-fiber Mach–Zehnder interferometer (MZI) was proposed and experimentally demonstrated for refractive index (RI) and relative humidity measurements. The sensor is composed of a hollow-core fiber (HCF) sandwiched between two single-mode fibers (SMFs) with a length of 8mm. A well-defined interference pattern was obtained as a result of fiber–core mismatch and core–cladding mode interference. The selected interference dip was extremely sensitive to the ambient RI and provided a stable RI response with sensitivities of up to 155.6nm/RIU and 163.1dB/RIU for water-based solutions close to the RI of 1.33, which makes it capable of environment humidity measurements with a sensitivity of 1.29pm%−1 and 0.00542dB%−1.
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.
