摘要
Molecular-beam-epitaxy growth of high structural and optical-quality InGaAsN/GaAs quantum wells (QW) has been investigated. The material quality can be improved significantly by using low-temperature growth to suppress the phase separation. High-performance ridge-waveguide InGaAsN/GaAs single QW lasers emitting at 1.3 μm have been demonstrated. Infinite-cavity-length threshold-current density of 400 A/cm2, internal quantum efficiency of 96%, and a slope efficiency of 0.67 W/A for a cavity length L= 1 mm were obtained. A TO46 packaging laser shows single lateral-mode kink-free output power of more than 200 mW with a maximum total wallplug efficiency of 29% at room temperature under continuous wave (cw) operation. Moreover, 1.3 μm InGaAsN/GaAs QW vertical-cavity surface-emitting lasers with a threshold current density lower than 2 KA/cm2 at room temperature have been achieved. We obtained multimode cw output power and slope efficiency in excess of 1 mW and 0.15 W/A, respectively.
原文 | English |
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頁(從 - 到) | 2663-2667 |
頁數 | 5 |
期刊 | Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures |
卷 | 22 |
發行號 | 6 |
DOIs | |
出版狀態 | Published - 11月 2004 |