Coupling methods and systems using a taper

摘要

An optical device for handling a radiation beam is described. The device comprises a semiconductor die comprising an integrated semiconductor optical waveguide integrated on the semiconductor die. Furthermore it comprises at least one first taper shaped for coupling the radiation beam between the integrated semiconductor optical waveguide and an external medium. The first taper thereby has an entrance/exit facet for receiving/emitting a radiation beam from/to the external medium. The facet of the first taper is spaced from the edge of the semiconductor over a distance d, the distance d being at least 1 µm and less than 200µm.