| Analysis Expression of Rate Equation for Vertical Cavity Lasers |
| PANWei[1] CHENJian－guo[2] 等 |
| 关键词：速率方程式 自然发射系数 结构参数 垂直空腔激光器 MQWs VCSELs |
| 主要内容：An analysis solution of rate equation is derived for vertical cavity surface-emitting lasers.Based on the enhanced spontaneous emission caused by VCSELs and influence of nonradiative recombination, the relation between output properties and structural parametersof multi-quantum wells(MQWs) is obtanined.It was found that the characteristic curve of a "thresholdless" laser is strongly nonradiative depopulation-dependent.When the nonradiative depopulation is no zero,the light-current characteristic is not linearly even for an ideal closed microcavity.The light output is increased by the enhanced well number and by the reduced width.In particular, a lower threshold current density for MQWs structure in the short cavity is realized by us, meanwhile the sharpness of the variation depends on spontaneous emission factor. |
| 《半导体光子学与技术：英文版》 2000,6(1).-40-47 |
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