Modeling of oxide-confined vertical-cavity surface-emitting lasers
Modeling of oxide-confined vertical-cavity surface-emitting lasers
复制标题
氧化物限制垂直腔表面发射激光器的建模
DOI：
10.1109/2944.605677
复制
发表时间：
1997
影响因子：
4.9
通讯作者：
K. Iga
中科院分区：
文献类型：
--
作者：
H. Bissessur;F. Koyama;K. Iga
利用有限差分光束传播方法（BPM）建立了垂直腔面发射激光器（VCSELs）的准三维模型。电学模型基于载流子速率方程，包括载流子扩散。该模型给出了腔体的精确光学描述，计算了任何折射率或增益制导VCSEL的阈值电流、激光波长、输出功率和二次模抑制，并考虑了空间孔燃烧。研究了不同激光结构的阈值电流限制，并提出了不同的方法来降低氧化约束结构中的散射损失。最后，讨论了它们在阈值及以上的单模极限，并研究了薄氧化层在保持单模工作的同时增加孔径的方法。
We present a quasi-three-dimensional (quasi-3-D) model of vertical-cavity surface-emitting lasers (VCSELs) using a finite difference beam propagation method (BPM) scheme. The electrical model is based on the carrier rate equation including carrier diffusion. This model, which gives an accurate optical description of the cavity, calculates the threshold current, laser wavelength, output power and secondary-mode rejection of any index or gain-guided VCSEL, taking into account spatial hole burning. The threshold current limit of different laser structures is investigated and different methods are suggested for reducing the scattering losses in oxide-confined structures. Finally, their single-mode limit at and above threshold is discussed, and thin oxide layers are examined to increase the aperture size while maintaining single-mode operation.