Turing patterns in a fiber laser with a nested microresonator: Robust and controllable microcomb generation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Hualong Bao
  • Luana Olivieri
  • Maxwell Rowley
  • Brent E. Little
  • Roberto Morandotti
  • David J. Moss
  • Juan Sebastian Totero Gongora
  • Marco Peccianti
  • Alessia Pasquazi

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number023395
Number of pages11
Journal / PublicationPhysical Review Research
Volume2
Issue number2
Online published24 Jun 2020
Publication statusPublished - 24 Jun 2020

Abstract

Microcombs based on Turing patterns have been extensively studied in configurations that can be modeled by the Lugiato-Lefever equation. Typically, such schemes are implemented experimentally by resonant coupling of a continuous wave laser to a Kerr microcavity in order to generate highly coherent and robust waves. Here, we study the formation of such patterns in a system composed of a microresonator nested in an amplifying laser cavity, a scheme recently used to demonstrate laser cavity solitons with high optical efficiency and easy repetition rate control. Utilizing this concept, we study different regimes of Turing patterns, unveiling their formation dynamics and demonstrating their controllability and robustness. By conducting a comprehensive modulational instability study with a mean-field model of the system, we explain the pattern formation in terms of its evolution from background noise, paving the way towards complete self-starting operation. Our theoretical and experimental paper provides a clear pathway for repetition rate control of these waves over both fine (Megahertz) and large (Gigahertz) scales, featuring a fractional frequency nonuniformity better than 7×10−14 with a 100-ms time gate and without the need for active stabilization.

Citation Format(s)

Turing patterns in a fiber laser with a nested microresonator: Robust and controllable microcomb generation. / Bao, Hualong; Olivieri, Luana; Rowley, Maxwell; Chu, Sai T.; Little, Brent E.; Morandotti, Roberto; Moss, David J.; Gongora, Juan Sebastian Totero; Peccianti, Marco; Pasquazi, Alessia.

In: Physical Review Research, Vol. 2, No. 2, 023395, 24.06.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal