Harmonic mode-locking in monolithic semiconductor lasers: Theory, simulations and experiment
- Bandelow, Uwe
- Radziunas, Mindaugas
- Vladimirov, Andrei
- Hüttl, Bernd
- Kaiser, Ronald
2010 Mathematics Subject Classification
- 78A60 34C23 35-04
2008 Physics and Astronomy Classification Scheme
- 42.60.Fc 42.55.Px 42.60.Mi
- mode-locking, harmonic mode-locking, traveling wave equations, delay-differential equations
We study both theoretically and experimentally typical operation regimes of 40 GHz monolithic mode-locked lasers. The underlying Traveling Wave Equation model reveals quantitative agreement for characteristics of the fundamental mode-locking as pulse width and repetition frequency tuning, as well as qualitative agreement with the experiments for other dynamic regimes. Especially the appearance of stable harmonic mode-locking at 80 GHz has been predicted theoretically and confirmed by measurements. Furthermore, we derive and apply a simplified Delay-Differential Equation model which guides us to a qualitative analysis of bifurcations responsible for the appearance and the breakup of different mode-locking regimes. Higher harmonics of mode-locking are predicted by this model as well.
- Optical and Quantum Electronics 38, pp. 495-512, 2006.