节点文献
1.08μm InAs/GaAs量子点激光器光学特性研究
Optical characteristics of 1.08μm InAs/GaAs quantum- dot laser diodes
【摘要】 介绍了InAs/GaAs量子点激光器的材料生长,器件制备及其光学特性的研究。器件为条宽100μm,腔长1600μm未镀膜激器。室温阈值电流密度为221A/cm2,激射波长为1.08μm,连续波工作最大光功率输出为2.74W(双面),外微分效率为88%,经50oC,1000h老化,仍有>1.2W的光功率输出。
【Abstract】 Optical characteristics of laser diodes fabricated from five InAs quantum- dot layers grown by MBE technique is described. The devices exhibited a peak power of 2.74W (both faces) at 1.08μ m with threshold current density of Jth=221A/cm2 and external differential quantum efficiency of η D=88% during room- temperature continuous- wave lasing. The life measurements indicate that the device remain output power >1.2W after stably operating over 1000 h at 50oC.
【关键词】 InAs/GaAs应变自组装量子点材料;
量子点激光器;
电致发光谱(EL);
MBE外延生长;
【Key words】 Strained self- organized quantum- dot materials; Electroluminescence spectra; GaAs; InAs quantum- dot structure; Quantum dot laser; MBE growth;
【Key words】 Strained self- organized quantum- dot materials; Electroluminescence spectra; GaAs; InAs quantum- dot structure; Quantum dot laser; MBE growth;
【基金】 国家自然科学基金项目资助!(69736010);国家863计划新材料领域专家委员会的资助!(No.715-014-0040和235-3A)
- 【文献出处】 功能材料与器件学报 ,JOURNAL OF FUNCTIONAL MATERIALS AND DEVICES , 编辑部邮箱 ,2000年03期
- 【分类号】TN24
- 【被引频次】5
- 【下载频次】111