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Two regimes of synchronization in unidirectionally coupled semiconductor lasers
1Institute of Applied Physics, Russian Academy of Science, 46 Ulyanov Street, 603600 Nizhny Novgorod, Russia.
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|February 28, 2002
Summary
Synchronization performance in coupled semiconductor lasers transitions from complete to partial time lag synchronization as laser mismatch increases. This shift involves changes in the synchronization error function
Area of Science:
- Optics and Photonics
- Nonlinear Dynamics
- Laser Physics
Background:
- Semiconductor lasers are crucial in modern optics.
- Understanding laser synchronization is vital for applications like secure communication and metrology.
- Coupled laser systems exhibit complex dynamics, including various synchronization regimes.
Purpose of the Study:
- To investigate the synchronization performance of unidirectionally coupled semiconductor lasers.
- To analyze the transition from complete synchronization to time lag synchronization.
- To understand the underlying dynamics of the synchronization error function.
Main Methods:
- Analysis of unidirectionally coupled semiconductor lasers.
- Utilizing a feedback/injection scheme.
- Examining the synchronization error function and its minima.
Main Results:
- Complete synchronization observed for identical lasers.
- Transition to partial time lag synchronization as laser mismatch increases.
- Continuous change in the global and relative minima of the synchronization error function.
Conclusions:
- Laser mismatch dictates the type of synchronization achieved.
- Time lag synchronization represents a partial synchronization state.
- The synchronization error function's minima behavior reflects the transition between synchronization regimes.