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Femtosecond pulse shaping using differential evolutionary algorithm and wavelet operators

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Shaver, A., Hadjiloucas, S. orcid id iconORCID: https://orcid.org/0000-0003-2380-6114, Walker, G.C. and Bowen, J.W. (2012) Femtosecond pulse shaping using differential evolutionary algorithm and wavelet operators. Electronics Letters, 48 (21). pp. 1357-1358. ISSN 0013-5194 doi: 10.1049/el.2012.2292

Abstract/Summary

Evolutionary meta-algorithms for pulse shaping of broadband femtosecond duration laser pulses are proposed. The genetic algorithm searching the evolutionary landscape for desired pulse shapes consists of a population of waveforms (genes), each made from two concatenated vectors, specifying phases and magnitudes, respectively, over a range of frequencies. Frequency domain operators such as mutation, two-point crossover average crossover, polynomial phase mutation, creep and three-point smoothing as well as a time-domain crossover are combined to produce fitter offsprings at each iteration step. The algorithm applies roulette wheel selection; elitists and linear fitness scaling to the gene population. A differential evolution (DE) operator that provides a source of directed mutation and new wavelet operators are proposed. Using properly tuned parameters for DE, the meta-algorithm is used to solve a waveform matching problem. Tuning allows either a greedy directed search near the best known solution or a robust search across the entire parameter space.

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Item Type Article
URI https://reading-clone.eprints-hosting.org/id/eprint/31456
Item Type Article
Refereed Yes
Divisions Life Sciences > School of Biological Sciences > Department of Bio-Engineering
Publisher Institution of Engineering and Technology (IET)
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