Self-pulsating semiconductor lasers: theory and experiment
- Mirasso, C. R.
- Van Tartwijk, G. H. M.
- Hernandez-Garcia, E.
- Lenstra, D.
- Lynch, Stephen Anthony
- Landais, P.
- Phelan, P.
- O'Gorman, J.
- San Miguel, M.
- Elsasser, W.
Publication date
January 1999
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
We report detailed measurements of the pump-current dependency of the self-pulsating frequency of semiconductor CD lasers. A distinct kink in this dependence is found and explained using a rate-equation model. The kink denotes a transition between a region where the self-pulsations are weakly sustained relaxation oscillations and a region where Q-switching takes place. Simulations show that spontaneous emission noise plays a crucial role in the cross-over..
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