模拟完整的PCSEL和VCSEL,使用修改后的严格合波分析
Optics express
|November 14, 2024
概括
一个新的严格的合波分析 (RCWA) 算法准确地模拟了垂直腔表面发射激光器 (VCSEL) 和光子晶体表面发射激光器 (PCSEL). 这种增强的RCWA方法比激光设计的传统方法更快,更准确.
科学领域:
- 光学和光子学 在光学和光子学.
- 计算物理 计算物理
- 半导体设备 半导体设备
背景情况:
- 传统的严格合波分析 (RCWA) 仅限于分析来自外部光源的发生光的结构.
- 垂直腔表面发射激光器 (VCSEL) 和光子晶体表面发射激光器 (PCSEL) 内部产生光,需要模拟双向光传播.
- 现有的模拟方法可能是计算密集的.
研究的目的:
- 开发一个集成的RCWA算法,能够模拟完整的VCSEL和PCSEL结构.
- 为了解决内部发光设备的传统RCWA的局限性.
- 为激光设计提供更快,更准确的模拟替代方案.
主要方法:
- 在RCWA中实施双向散射矩阵方法.
- 整合了一种加倍算法来处理内部光源的产生.
- 将模拟结果与卢梅里克的有限差异时间域 (FDTD) 方法进行比较.
主要成果:
- 增强的RCWA准确地预测了VCSEL和PCSEL的共振波长和Q因子.
- 与FDTD最大差异在波长方面小于3nm,在远场差异方面小于0.5°.
- 与FDTD相比,RCWA方法的执行速度明显更快.
结论:
- 开发的集成RCWA是模拟VCSEL和PCSEL设备的强大而有效的工具.
- 这种方法克服了传统RCWA对于内部发光激光结构的局限性.
- 增强的RCWA为光学设备模拟和设计提供了一个可行的,高速的替代方案.
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