Population-split genetic algorithm for retrieval of ultrafast laser parameters

  • Authors:

  • S. F. Shu;C. L. Pan;C. T. Sun

  • Affiliations:

  • Institute of Electro-optical Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan;Institute of Electro-optical Engineering, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan;Department of Computer and Information Science, National Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan

  • Venue:
  • Neural, Parallel & Scientific Computations
  • Year:
  • 2003

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Abstract

Authors modify the traditional or standard genetic algorithm by splitting the initial population. This crucial step is an imitation of sexual and asexual reproduction mechanism in the life cycle of many plants or animals. Asexual reproduction shall happen in only one population, which is fitter of the two. This evolution guarantees that the converging direction can be controlled properly. This technique is proposed and used to deal with complicated and noisy spectrograms generated by a Frequency Resolved Optical Gating (FROG) apparatus for characterization of ultrafast laser pulses. The results show that this technique can more easily retrieve complex laser pulse parameters than previous approaches.