Dilute nitrides and 1.3?m GaInNAs quantum well lasers on GaAs
We present epitaxial growth of GaInNAs on GaAs by molecular beam epitaxy (MBE) using analog, digital and N irradiation methods. It is possible to realize GaInNAs quantum wells (QWs) with a maximum substitutional N concentration up to 6% and a strong light emission up to 1.71?m at 300K. High quality 1.3?m GaInNAs multiple QW edge emitting laser diodes have been demonstrated. The threshold current density (for a cavity of 1001000?m2) is 300, 300, 400 and 940A/cm2 for single, double, triple and quadruple QW lasers, respectively. The maximum 3dB bandwidth reaches 17GHz and high-speed transmission at 10Gb/s up to 110C under a constant voltage has been demonstrated.
dilute nitride 1.3?m gainnas laser gaas