Thermal Properties of Vertical-Cavity Surface-Emitting Diode Lasers and Arrays

拟议研究的目的是开展 第一次全面的热研究垂直腔 面发射半导体激光器和二维 激光阵列 虽然有一个普遍的共识， 热问题对于垂直腔是至关重要的 表面放射源，它们实际上仍然未被探索。 的 该项目的基本目标是达到一个良好的 了解控制热的主要因素 垂直腔面发射激光器的特性及其应用 这些知识可以提高设备性能。 在 在项目的初期阶段，我们将集中研究 单个的表面发射激光器。 我们将开发一个 热-电自洽模型， 热源的分布和占两个- 三维电流和热扩散，并将其应用于 几种最先进的垂直腔激光器 结构. 我们还将研究热效应的影响 单个发射器在其集成到二维 阵 那么，热电自洽性将是 补充包括光学现象和完全自我， 将开发一致的治疗方法，以检查 加热对单个表面发射体光学特性的影响 和二维数组。 预计该研究将 为先进设计提供重要信息， 性能垂直腔面发射激光器和两个- 用于新颖应用的三维阵列 处理和光学互连。

The objective of the proposed research is to undertake the first comprehensive thermal studies of vertical-cavity surface-emitting semiconductor lasers and two-dimensional laser arrays. Although there is a general consensus that thermal problems are of utmost importance for vertical-cavity surface emitters, they remain virtually unexplored. The underlying goal of this project is to reach a good understanding of main factors which govern the thermal behavior of vertical-cavity surface-emitting laser and to use this knowledge to improve the device performance. In the initial phase of the project, we will concentrate on studies of individual surface-emitting lasers. We will develop a thermal-electrical self-consistent model, with realistic distribution of heat sources and accounting for two- dimensional current- and heat spreading, and apply it to several types of state-of-the-art vertical cavity laser structures. We will also examine impact of thermal effects in individual emitters on their integration into two-dimensional arrays. The thermal-electrical self-consistency will then be complemented by inclusion of optical phenomena and fully self- consistent treatment will be developed to examine effects of heating on optical properties of individual surface emitters and two-dimensional arrays. The proposed research is expected to provide important information for advanced design of high- performance vertical-cavity surface-emitting lasers and two- dimensional arrays for novel applications such as optical processing and optical interconnects.