Japanese Journal of Applied Physics · 1985 · 46 citations · 4 references
EngineeringElectrical EngineeringMaterials ScienceOpticsOptoelectronicsPhotonicsLaser DiodesOptical ModulationOptical ModulatorsOptical WaveguidesOptoelectronic DevicesQuantum WellsDouble Heterostructure DevicesElectric Field EffectsHeterostructure OptoelectronicsHigh-speed OperationQuantum Well HeterostructuresQuantum Well StructuresSemiconductor Laser DiodesSemiconductor Optical Modulators
This letter describes a GaAs/AlGaAs quantum well (QW) waveguide-type optical modulator utilizing an electric field effect on two-dimensional exciton absorption. The waveguide modulator has the same structure as QW laser diodes, and is therefore suitable for monolithic integration with a laser diode. Optical modulation was measured up to 1 Gbit/s at a driving voltage as low as 1.4 V. The 3 dB-down modulation rate was 900 Mbit/s, but higher speed operation is expected.
4
A Segmented Electrode Multi-Quantum-Well Laser Diode
Hidetoshi Iwamura, Seigo Tarucha, T. Saku et al. · Japanese Journal of Applied Physics · 1983 · 10 citations