Design of a polarization-insensitive and highefficiency coplanar edge coupler for silicon photonics by using a polished conical silicon-cored-fiber
Journal
IEEE Photonics Journal
Journal Volume
16
Journal Issue
1
Date Issued
2023-01-01
Author(s)
Abstract
Optical 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.
Subjects
Edge coupling | Fiber-to-chip coupling | Siliconcored fiber
SDGs
Type
journal article