Design of a 1×2 wavelength selective switch using an arrayed-waveguide grating with fold-back paths on a silicon platform

摘要

A 1×2 wavelength selective switch was designed. It consists of an arrayed-waveguide grating with fold-back paths, three 1×4 interleavers, and 1×2 switches. The number of crossings is independent of the number of wavelength channels.