Wavelenght-multiplexer

摘要

The input waveguide (Ge) comprises a guide layer of size and refractive index giving a lateral confinement factor of at least 95%. It enters a diffraction space (Ce) which is a star coupler connected by a grating formed with guides (gi) of different wavelengths to a second star coupler (Cs). A focusing surface (Zf) is bounded by the second coupler and receives waves as a function of their wavelength. The receiving surface (Ze) together with the input guide is made with dimensions such that the diffracted wave of a given input is formed on the surface such that its amplitude as a function of position has a part at least of several secondary lobes.