Applied Physics Letters · 1993 · 16 citations · 11 references
EngineeringElectrical EngineeringMaterials ScienceOptoelectronicsPhotonicsSemiconductor DevicesHigh-frequency Semiconductor DevicesLaser DiodesLaser PhysicsOptical SourcesSemiconductor LasersWide-bandgap SemiconductorsCurrent InjectionFrequency TuningLaser TuningModulation Frequency TuningSemiconductor Laser DiodesThermal EffectsTunable Laser DiodesVertical-cavity Surface-emitting Lasers
The frequency tuning of a vertical-cavity surface-emitting laser through current injection is reported herein. This was achieved by integrating an AlGaAs graded-index p–n-modulator diode with a double-hetero GaAs/AlGaAs laser diode in a vertical cavity formed by an AlAs/AlGaAs-Bragg reflector and a metallic mirror. Experimental results show an obtained gradient of frequency shift up to 0.93 GHz/mA by the modulator current. This effect is at present restricted to approximately 40 mA due to thermal effects. A theoretical model based on the plasma effect and thermal effects agrees with the experimental values and predicts a maximum value for the gradient of frequency shift of 1.15 GHz/mA with the presented structure.
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On the linewidth of microcavity lasers
Gunnar Björk, Anders Karlsson, Y. Yamamoto · Applied Physics Letters · 1992 · 83 citations
Tunable twin-guide laser: A novel laser diode with improved tuning performance
M.-C. Amann, S. Illek, C. Schanen et al. · Applied Physics Letters · 1989 · 56 citations