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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
Published on: September 26, 2014
Accurate two-dimensional model of an arrayed-waveguide grating demultiplexer and optimal design based on the
1Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Joint Research Center of Photonics of the Royal Institute of Technology, Stockholm, Sweden. ddxopt@hotmail.com
Abstract:
An accurate two-dimensional (2D) model is introduced for the simulation of an arrayed-waveguide grating (AWG) demultiplexer by integrating the field distribution along the vertical direction. The equivalent 2D model has almost the same accuracy as the original three-dimensional model and is more accurate for the AWG considered here than the conventional 2D model based on the effective-index method. To further improve the computational efficiency, the reciprocity theory is applied to the optimal design of a flat-top AWG demultiplexer with a special input structure.
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