Pulse-shaping mechanism in colliding-pulse mode-locked laser diodes

The large signal dynamics of passively colliding pulse mode-locked laser diodes is studied. We derive a model which explains modelocking via the interplay of gain and loss dynamics; no bandwidth limiting element is necessary for pulse formation. It is found necessary to have both fast and slow absor...

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Bibliographic Details
Published in:Applied physics letters 1995-12, Vol.67 (26), p.3877-3879
Main Authors: Bischoff, S., So/rensen, M. P., Mo/rk, J., Brorson, S. D., Franck, T., Nielsen, J. M., Mo/ller-Larsen, A.
Format: Article
Language:English
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Summary:The large signal dynamics of passively colliding pulse mode-locked laser diodes is studied. We derive a model which explains modelocking via the interplay of gain and loss dynamics; no bandwidth limiting element is necessary for pulse formation. It is found necessary to have both fast and slow absorber dynamics to achieve mode-locking. Significant chirp is predicted for pulses emitted from long lasers, in agreement with experiment. The pulse width shows a strong dependence on both cavity and saturable absorber length.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.115303