Genetic-algorithm (GA)-based optimisation of resonator dispersion for Kerr comb state tailoring via the Lugiato-Lefever Equation (LLE). Check the Nature Photonics paper (DOI 10.1038/s41566-023-01252-7) or the arxiv version for more information.
This is done by launching the script lle_dispersion_genetic_optimize.m.
Two optimization scenarii are demonstrated:
- Flat comb with a tageted power per line over a given bandwidth. This is currently the default scenario (see
run init_polyCombTarget.min the file). The initializationinit_polyCombTarget.mcan be modified to set a precise comb shape target and the fitness can be modified that the GA fits that target. - Octave-spaced dispersive wave uncomment the line
% run init_octaveDW.minlle_dispersion_genetic_optimize.mand the opmitization will seek to enhance the comb power in a specified comb line.
By default the genetic evolution results are stored in a .mat file in the Data folder. You can retrieve the optimum spectrum and dispersion profile by running analyze_genetic_dispersion_results.m. Additional options can be performed such as simulating a laser scan to check if the state can be reached by scanning the detuning across resonance.