講演情報
[9p-E219-12]Topologically Protected Supercontinuum Generation in Defect Immune Topological Optical Fibers
〇(D)Subhranshu Sekhar Rout1, Bishnu P. Pal1, Somnath Ghosh1 (1.Mahindra Univ.)
キーワード：
Optical fibers
Topological optical fibers hold great promise for robust light guidance and nonlinear optical processes. In this work, we theoretically demonstrate topologically protected supercontinuum generation in a simply designed fiber composed of one-dimensional photonic crystals with distinct topologies. The fiber supports a topological mode at the interface between two different lattices, which remains stable against local perturbations. Strong optical confinement, a small effective mode area, and enhanced nonlinearity enable efficient supercontinuum generation when a short input pulse is launched in the anomalous dispersion regime into the fiber. Both the dispersion characteristics and the generated supercontinuum are topologically protected, showing resilience against scattering and loss even in the presence of local defects along the propagation path. These findings highlight the potential of topological optical fibers as stable broadband light sources for nonlinear photonic applications, opening new directions in topological fiber optics and integrated photonic technologies.