Optimization of frequency combs spectral-flatness using evolutionary algorithm

Thyago Pinto, Uiara C. De Moura, Francesco Da Ros, Marko Krstiգ, Jasna V. Crnjanski, Antonio Napoli, Dejan M. Gvozdiգ, Darko Zibar

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Abstract

We demonstrate the use of meta-heuristics algorithms for flatness optimization of optical frequency combs (OFCs). Without any additional component for flatness compensation, the laser alone is explored when driven by optimized bias current and radio frequency (RF) driving signals composed by multiple harmonics. The bias current amplitude and RF harmonic amplitudes and relative phases are optimized using particle swarm optimization (PSO) and differential evolution (DE) algorithms. The numerical results lead to a 9 lines-GS-laser-based OFC spectrum with 2.9 dB flatness. An online experimental optimization using the DE algorithm results in a 7-line-GS-laser-based OFC with 2 dB flatness.

Original languageEnglish
JournalOptics Express
Volume29
Issue number15
Pages (from-to)23447-23460
ISSN1094-4087
DOIs
Publication statusPublished - 19 Jul 2021

Bibliographical note

Funding Information:
H2020 Marie Sk?odowska-Curie Actions (814276; 754462); European Research Council (ERC-CoG FRECOM project grant agreement no. 771878); Science Fund of the Republic of Serbia (PROMIS, 6066816, iDUCOMBSENS); Ministarstvo Prosvete, Nauke i Tehnoloskog Razvoja; Villum Fonden (VYI OPTIC-AI grant no. 29344)

Funding Information:
Funding. H2020 Marie Skłodowska-Curie Actions (814276; 754462); European Research Council (ERC-CoG FRECOM project grant agreement no. 771878); Science Fund of the Republic of Serbia (PROMIS, 6066816, iDUCOMBSENS); Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja; Villum Fonden (VYI OPTIC-AI grant no. 29344).

Publisher Copyright:
© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

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