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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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Published on: February 28, 2016

Laser chimeras as a paradigm for multistable patterns in complex systems.

Laurent Larger¹, Bogdan Penkovsky¹, Yuri Maistrenko²

¹Institut FEMTO-ST, UMR 6174, Université Bourgogne Franche-Comté, CNRS, 15B avenue des Montboucons, 25030 Besançon, France.

Nature Communications

|July 15, 2015

Summary

This summary is machine-generated.

Researchers explored chimera states in high-dimensional networks using a semiconductor laser. They discovered higher-order chimeras and observed their destruction, offering insights into complex dynamics like brain function.

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Area of Science:

Complex Systems
Nonlinear Dynamics
Laser Physics

Background:

Chimera states are complex, self-organized dynamics in high-dimensional networks.
Non-local and symmetry-breaking coupling are crucial for their emergence.
Understanding chimera states offers insights into biological systems, brain function, and hydrodynamics.

Purpose of the Study:

To experimentally investigate chimera states in a controllable system.
To explore pattern transitions and the destruction of chimera states.

Main Methods:

Utilized an optoelectronic delayed feedback system with a wavelength-tunable semiconductor laser.
Accurately investigated and interpreted a wide variety of chimera patterns.
Observed system behavior as gain increased.

Main Results:

Uncovered a cascade of higher-order chimera states, transitioning from N to N+1 clusters of chaoticity.
Visually tracked the gradual destruction of chimera states with increasing gain.
Observed a transition towards turbulence-like system behavior.

Conclusions:

The semiconductor laser system provides a powerful platform for studying chimera states.
Higher-order chimera states represent a novel pattern transition.
The findings contribute to understanding complex dynamics in various scientific fields.