Comparative Analysis of MMF and NCF Mode Couplers in SCF-MZI for Curvature Sensing
Optical fiber curvature sensors based on Mach-Zehnder interferometers (MZI) incorporating multicore fibers offer high sensitivity. However, the influence of the beam splitter and combiner fibers on overall sensor performance remains underexplored. This work systematically investigates three seven-core fiber (SCF)-MZI c...