15:30 〜 15:45 ▲ [20p-E215-4] Nonlinearity Controlled Asymmetric Mode-Conversion in an Optical Waveguide Hosting an Exceptional Point 〇(D)Arnab Laha1,2、Abhijit Biswas2、Somnath Ghosh1 (1.IIT Jodhpur、2.Univ. Calcutta)