Abstract
This paper focuses on four structural parameters of reflective microfiber coupler (MFC), including taper length, taper width, coupling length, and coupling diameter. The influences of those parameters upon the performance of MFC are identified through simulation and are justified through mathematical and coupling theory. Subsequently, refractive index (RI) sensing experiments were conducted to characterize the performance of MFCs with different structural parameters, thereby verifying the simulation results. The most significant result is the correlation between the sensitivity and coupling diameter, which demonstrates that the general view, which considers the correlation monotonically negative, is partially correct. The optimal coupling diameter, for which MFC achieves the highest sensitivity, was shown to be approximately 25 μm. Due to the optimal coupling diameter, the sensitivity is tripled to 11780.5 nm/RIU for RI values from 1.33 to 1.36. The developed sensor is expected to become a reasonable choice when sensitive RI measurements are required.
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.
