Hosting Second Order Exceptional Point in an All-lossy Dual-Core Photonic Crystal Fiber

2025/03/05 by Ghosh, Shamba, Roy, Arpan, Pal, Bishnu P. +1
#FOS: Physical sciences #Optics (physics.optics)

paper · doi:10.48550/arxiv.2503.03514

Abstract

We report an all-lossy index-guided dual-core photonic crystal fiber (PCF) that hosts a second-order exceptional point (EP) in the systems parameter space. By appropriately selecting a parametric encirclement scheme around the EP, the interaction between the coupled modes has been studied, and the mode conversion is subsequently observed.

Related

• Dynamically Encircled Higher-order Exceptional Points in an Optical Fiber
• Broad-band robustly single-mode hollow-core PCF by resonant filtering of higher order modes
• All-Lossy Quasi-Guided Dual-Mode Optical Waveguide Exhibiting Exceptional Singularities
• Optical waveguide hosting multiple exceptional points: Toward selective mode conversion
• Exceptional Point and Toward Mode Selective Optical Isolation