On The Prediction of Self-Pulsations in Two-Section Partially Gain-Coupled DFB Lasers

The self-consistent mode-beating model is applied to a two-section partially gain-coupled DFB laser with a low coupling strength. The model is based on introducing a fixed detuning parameter to the rate equations of the slowly-varying fields. By using quantum-well parameters two self-pulsating regimes are predicted at a lower coupling strength than previously reported