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Proceedings Paper

Genetic algorithm for the design of high frequency diffraction gratings for high power laser applications
Author(s): Martin J. Thomson; Andrew J. Waddie; Mohammad R. Taghizadeh
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Paper Abstract

We present a genetic algorithm with small population sizes for the design of diffraction gratings in the rigorous domain. A general crossover and mutation scheme is defined, forming fifteen offspring from 3 parents, which enables the algorithm to be used for designing gratings with diverse optical properties by careful definition of the merit function. The initial parents are randomly selected and the parents of the subsequent generations are selected by survival of the fittest. The performance of the algorithm is demonstrated by designing diffraction gratings with specific application to high power laser beam lines. Gratings are designed that act as beam deflectors, polarisers, polarising beam splitters, harmonic separation gratings and pulse compression gratings. By imposing fabrication constraints within the design process, we determine which of these elements have true potential for application within high power laser beam lines.

Paper Details

Date Published: 21 April 2006
PDF: 10 pages
Proc. SPIE 6185, Micro-Optics, VCSELs, and Photonic Interconnects II: Fabrication, Packaging, and Integration, 61850D (21 April 2006); doi: 10.1117/12.661744
Show Author Affiliations
Martin J. Thomson, Heriot-Watt Univ. (United Kingdom)
Andrew J. Waddie, Heriot-Watt Univ. (United Kingdom)
Mohammad R. Taghizadeh, Heriot-Watt Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 6185:
Micro-Optics, VCSELs, and Photonic Interconnects II: Fabrication, Packaging, and Integration
Hugo Thienpont; Mohammad R. Taghizadeh; Peter Van Daele; Jürgen Mohr, Editor(s)

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