Title :
Inverse design of photonic crystal devices
Author :
Håkansson, Andreas ; Sánchez-Dehesa, José ; Sanchis, Lorenzo
Author_Institution :
Wave-Phenomena Group, Polytech. Univ. of Valencia, Spain
fDate :
7/1/2005 12:00:00 AM
Abstract :
This paper deals with the inverse design in the field of photonic crystal (PC)-based devices. Here, an inverse method containing a fast and accurate simulation method integrated with a competent optimization method is presented. Two designs yielded from this conjunction of multiple scattering theory with a genetic algorithm are analyzed. The potential of this approach is illustrated by designing a lens that has a very low F-number (F=0.47) and a conversion ratio of 11:1. We have also designed a coupler device that introduces the light from an optical fiber into a PC-based waveguide with a predicted coupling efficiency that exceeds 87%.
Keywords :
genetic algorithms; integrated optics; lenses; optical design techniques; optical fibre couplers; optical materials; optimisation; photonic crystals; coupler device; coupling efficiency; genetic algorithm; integrated optics; inverse design; lens; multiple scattering theory; optical fiber; optical waveguide; optimization method; photonic crystal devices; Algorithm design and analysis; Inverse problems; Light scattering; Optical coupling; Optical design; Optical scattering; Optical waveguides; Optimization methods; Particle scattering; Photonic crystals; Genetic algorithm (GA); PC waveguide; inverse design (ID); multiple scattering theory; optical fiber; photonic crystals (PCs); photonic devices; spot-size converter;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
DOI :
10.1109/JSAC.2005.851190
