MULTIMODE INTERFERENCE COUPLER AND METHOD FOR THE STRUCTURAL CONFIGURATION THEREOF

摘要

The invention relates to a multimode interference coupler (MMI) comprising at least one supply waveguide and at least one output waveguide, wherein the MMI has along its longitudinal extent in the direction of the supply waveguide at least one longitudinal section in which the refractive index has a locally oscillating profile in a direction running substantially at right angles to the direction of the supply waveguide. The invention furthermore relates to a method for the structural configuration of a multimode interference coupler.