Scaling effects on vertical-cavity surface-emitting lasers static and dynamic behavior
Scaling effects on vertical-cavity surface-emitting lasers static and dynamic behavior
复制标题
垂直腔表面发射激光器静态和动态行为的缩放效应
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
Werner Baechtold
中科院分区：
文献类型：
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作者：
M. Jungo;Fabrice Monti di Sopra;D. Erni;Werner Baechtold
研究了氧化层孔径大小和顶部分布布拉格反射镜对数目对氧化层限制垂直腔面发射激光器性能的影响。几个抵消机制被证明会导致非单调的行为，这限制了非常小的腔的性能。静态，动态和噪声行为被认为是。我们研究静态操作的稳态测量，而动态行为和噪声性能所描述的固有弛豫振荡频率，阻尼系数，和肖洛-汤斯线宽。这些参数是从相对强度噪声测量中提取的。将氧化物孔径减小到给定的最佳直径，可以改善器件的特性。我们将低于此值的性能退化归因于衍射损耗增加、限制因子降低和自发辐射增强。同样，增加布拉格反射器对的数量首先会产生更好的整体…
We investigate the influence of oxide aperture size and number of top distributed Bragg reflector pairs on the performance of oxide confined vertical-cavity surface emitting lasers. Several counteracting mechanisms are shown to result in nonmonotonic behavior, which limits the performance of very small cavities. Static, dynamic, and noise behavior are considered. We examine static operation by means of steady-state measurements, whereas dynamic behavior and noise performance are described by the intrinsic relaxation oscillation frequency, damping coefficient, and Schawlow–Townes linewidth. These parameters are extracted from relative intensity noise measurements. Reducing the oxide aperture up to a given optimal diameter is shown to improve the device’s characteristics. We attribute the performance degradation below this value to increased diffraction losses, reduced confinement factor, and enhanced spontaneous emission. Similarly, increasing the number of Bragg reflector pairs first yields better overall...