Femtosecond dynamics in semiconductor lasers: Dark pulse formation
- 30 March 1998
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 72 (13) , 1626-1628
- https://doi.org/10.1063/1.121134
Abstract
We track the dynamic response of GaAs quantum-well semiconductor diode lasers after injection of a femtosecond pulse, using ultrafast upconversion. The continuous-wave emission shows gain dynamics and relaxation oscillations on timescales of 1–100 ps. The recirculating femtosecond pulse evolves into an ultrafast “dark pulse” in the wake of subpicosecond oscillations.Keywords
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