Adiabatic Coarse Wavelength De/Multiplexing for Optical Systems

Abstract

A novel approach to the simultaneous multiplexing or de multiplexing of 3 wavelengths for coarse wavelength channel separation is based on the geometrical evolution and transformation of the modes of a single few-mode planar device. An input fundamental mode is transformed into a particular higher-order mode, depending on its wavelength, and then is transformed directly into the fundamental mode of a particular output port. The functionality of the device is quantified and its performance optimised through appropriate design. The device overall size is minimised, taking into account core spacing requirements for a fibre pigtailing, i.e. connecterisation of the input and output device arms to optical fiber. Show more