Design, Fabrication and Characterization of Inverse Adiabatic Fiber-To-Chip Couplers

摘要

An inverse-taper coupler between a fiber and a SiNx-waveguide overclad with silicon oxide was fabricated. 1.0 dB loss was measured for a 750 jim-long device with a low-index multimode waveguide designed to match a 4.0 um fiber.