[15a-WL2_201-1~9] 3.10 Photonic structures and phenomena

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15a-WL2_201-1] 3×3 Topological Optical Coupler Based on Phase-Controlled Orbital Angular Momentum Interference

〇(B)Raku Yamaji¹, Liyan Hu¹, Gai Ichisawa¹, Qianshuo Wang¹, Wenbo Lin¹, Sho Okada², Xing-Xiang Wang³, Xiao Hu³, Tomohiro Amemiya¹ (1.Science Tokyo, 2.NICT, 3.Shanghai Univ.)

Keywords:

Topological Photonics,Photonic Crystal,Orbital Angular Momentum

We propose a novel 3×3 topological optical coupler based on phase-controlled orbital angular momentum (OAM) interference. This device utilizes geometric phases induced by topological waveguide bends and manipulates the interference state at the central junction by tuning mutual input phase differences. FDTD analysis demonstrated optical routing operations where output power distribution is selectively switched solely via phase control.