Irregular phase slipping in a model for a laser with injected signal

Area of Science:

• Laser physics
• Nonlinear dynamics
• Quantum optics

Background:

• Single mode lasers with injected signals are fundamental in optics.
• Understanding phase dynamics is crucial for laser stability and applications.
• Previous models often simplified the complex behavior of driven oscillators.

Purpose of the Study:

• To investigate the phenomenon of irregular pulsing in a single mode laser with an injected signal.
• To analyze the mechanisms behind phase chaos and irregular phase slipping.
• To identify key properties responsible for the interruption of phase locking in driven oscillators.

Main Methods:

• Theoretical modeling of a single mode laser system with an injected signal.
• Analysis of the relative phase dynamics between internal and external fields.
• Comparison of observed phase chaos with other laser models.

Main Results:

• Observed irregular pulsing in the laser output signal.
• Identified turbulent intervals where the relative phase slips by a variable integer multiple of 2pi.
• Found laminar intervals characterized by locked relative phase.

Conclusions:

• The study elucidates a mechanism for phase chaos creation in driven oscillators.
• Specific properties responsible for the irregular interruption of phase locking were identified.
• This research provides insights into the complex dynamics of injected laser systems.