Title :
The influence of Coulomb enhancement on the modulation properties of quantum-well lasers
Author :
Tsou, Benjamin P C ; Pulfrey, David L.
Author_Institution :
Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada
fDate :
2/1/1998 12:00:00 AM
Abstract :
The phenomenon of Coulomb enhancement, resulting from the consideration of many-body effects, is included in a detailed calculation of the gain of a quantum-well (QW) laser, which is then used to predict the laser´s modulation response. Carrier transport in the separate-confinement heterostructure is taken into account. The modulation response is compared to experimental data and to predictions from calculations using only the free-carrier gain. The comparison shows that the inclusion of Coulomb enhancement in the theoretical calculations leads to better agreement between simulated and experimental data
Keywords :
carrier density; many-body problems; optical modulation; quantum well lasers; Coulomb enhancement; InGaAs-AlGaAs; InGaAs-AlGaAs SQW laser; carrier transport; free-carrier gain; gain; many-body effects; modulation properties; modulation response; quantum-well lasers; separate-confinement heterostructure; Charge carrier processes; Laser modes; Laser theory; Optical materials; Optical modulation; Particle scattering; Photonic band gap; Plasma displays; Plasma properties; Quantum well lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
