概括
这项研究模型2x2马赫-泽恩德干扰仪光学开关,优化多模干扰合器,以减少光子集成电路中的交叉声和功耗.
科学领域:
- 光子学 是一个光子学.
- 集成光学 集成光学 集成光学
- 光学交换机光学交换机
背景情况:
- 对大型光子集成电路 (PIC) 来说,交叉声和功耗是至关重要的.
- 马赫-泽恩德干扰仪 (MZI) 光学开关是基本的组件.
研究的目的:
- 为2x2 MZI光学开关开发一个理论模型,考虑臂损失和合器分割比率不平衡.
- 提供设计指南,以实现特定的交叉通话水平.
- 为了呈现一个强大的2x2多模干扰 (MMI) 合器设计.
主要方法:
- 2x2 MZI光学开关的理论建模.
- 2x2 MMI 合器的设计和模拟.
- 在在绝缘体 (SOI) 基板上制造MZI开关,使用电子束 (EB) 和深紫外线 (DUV) 光刻法.
- 光学开关性能的表征,包括交叉通话和功耗.
主要成果:
- 开发了一个理论模型,总结了给定交叉通话水平的分割比率不平衡要求.
- 在C频段设计和演示了一种2x2MMI合器,其过剩损失低 (<0.14dB) 和失衡 (<0.13dB).
- 该MMI合器显示强度宽度变化高达±40nm.
- 制造的EB和DUVMMI开关实现了分别低于-35dB和-30dB的交叉声.
- 波导和加热器的折叠配置产生了约8mW的Pπ,提高了功率效率.
结论:
- 开发的理论模型和MMI合器设计为制造高性能2x2 MZI光学开关提供了实际指南.
- 使用带有EB和DUV光刻的SOI基板,可以实现低交叉光学开关.
- 优化的设计,包括折叠配置,显著提高PIC的功率效率.
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