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Proceedings Paper

Inverse design of photonic devices by using a genetic algorithm
Author(s): Jose Sanchez-Dehesa; Andreas Hakansson; Lorenzo Sanchis
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Paper Abstract

We use multiple scattering in conjunction with a genetic algorithm to reliably determine the optimized photonic-crystal-based structure able to perform a specific optical task. The genetic algorithm operates on a population of candidate structures to produce new candidates with better performance in an iterative process. The potential of this approach is illustrated by designing a spot size converter that has a very low F-number (F=0.47) and a conversion ratio of 11:1. Also, we have designed a coupler device that introduces the light from the optical fiber into a photonic-crystal-based wave guide with a coupling efficiency over 87% for a wavelength that can be tuned to 1.5 λ.

Paper Details

Date Published: 15 September 2004
PDF: 7 pages
Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); doi: 10.1117/12.545902
Show Author Affiliations
Jose Sanchez-Dehesa, Univ. Politecnica de Valencia (Spain)
Andreas Hakansson, Univ. Politecnica de Valencia (Spain)
Lorenzo Sanchis, Univ. Politecnica de Valencia (Spain)

Published in SPIE Proceedings Vol. 5450:
Photonic Crystal Materials and Nanostructures
Richard M. De La Rue; Pierre Viktorovitch; Clivia M. Sotomayor Torres; Michele Midrio, Editor(s)

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