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Updated: May 18, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Hopf bifurcation to square-wave switching in mutually coupled semiconductor lasers
M Sciamanna1, M Virte, C Masoller
1Supélec, OPTEL Research Group, Laboratoire Matériaux Optiques, Photonique et Systèmes, EA-4423, 2 rue Edouard Belin, F-57070 Metz, France. marc.sciamanna@supelec.fr
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|September 26, 2012
Summary
Researchers explored bifurcations in coupled semiconductor lasers, revealing transitions to stable square-wave pulsing and polarization mode switching. Increased coupling strength drives these complex dynamics, mimicking experimental observations.
Area of Science:
- Physics
- Nonlinear Dynamics
- Optoelectronics
Background:
- Semiconductor lasers exhibit complex dynamics under mutual coupling.
- Polarization mode switching and pulsing are critical phenomena in laser operation.
Purpose of the Study:
- To elucidate bifurcations leading to stable square-wave pulsing and polarization mode switching.
- To analyze the impact of coupling strength on laser dynamics.
Main Methods:
- Advanced continuation techniques for dynamical systems.
- Analysis of bifurcations in mutually coupled semiconductor lasers.
Main Results:
- Cascade of Hopf bifurcations on mixed-mode steady states.
- Transcritical bifurcation on pure-mode steady states.
- Emergence of time-periodic solutions with periods near relaxation oscillation or time delay.
- Evolution of pulsing from harmonic to square-wave forms.
Conclusions:
- Coupling strength dictates the transition to complex pulsing and polarization switching.
- The study explains experimental observations of square-wave pulsing in lasers.
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