Applied Physics Letters · 1990 · 159 citations · 12 references
EngineeringElectrical EngineeringPhysicsOpticsOptoelectronicsPhotonicsNonlinear DynamicsNonlinear OpticsOptical AmplifiersOptical Properties Of SemiconductorsSemiconductor PhysicsUltrafast OpticsCross-correlation StudiesCross-correlation TechniquesNonlinear Effects In Optical AmplifiersOptical GainOptical Gain In SemiconductorsRelaxation OscillationsSemiconductor Optical AmplifiersUltrafast Electron Dynamics
We have studied ultrafast gain dynamics in InGaAsP optical amplifiers by means of pump-probe and cross-correlation measurements using 180 fs optical pulses. The data show strong gain nonlinearities due to nonequilibrium carrier distributions and differ significantly from those observed in AlGaAs amplifiers.
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High-speed modulation of semiconductor lasers
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Femtosecond pulse generation in a laser with a nonlinear external resonator
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Subpicosecond gain dynamics in GaAlAs laser diodes
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