Design of a polarization-insensitive and highefficiency coplanar edge coupler for silicon photonics by using a polished conical silicon-cored-fiber

Yang, Sung PuSung PuYangCHAO-HSIN WULON A. WANG2024-01-122024-01-122023-01-011943-06551943-0647https://scholars.lib.ntu.edu.tw/handle/123456789/638463Optical coupling between an external optical fiber and a silicon waveguide is vital for successful silicon photonics applications. Direct edge coupling has been desirable but challenging in the past to substitute for bulky, non-coplanar grating-assisted coupling. A silicon-cored fiber (SCF) is proposed as a novel solution for coplanar light coupling from an incoming fiber to a silicon waveguide. The simulation results show that an optimized polished conical SCF coupler can reach very high coupling efficiencies in both TE and TM modes and with low polarization dependence.Edge coupling | Fiber-to-chip coupling | Siliconcored fiber[SDGs]SDG7Design of a polarization-insensitive and highefficiency coplanar edge coupler for silicon photonics by using a polished conical silicon-cored-fiberjournal article10.1109/JPHOT.2023.33400252-s2.0-85179829590https://api.elsevier.com/content/abstract/scopus_id/85179829590