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用于克尔非线性光学的肋骨波导

Vijay Shekhawat, Ping Zhao, Niclas Lindvall

|December 19, 2025

概括

使用化肋波导的集成光学参数放大器 (OPA) 为宽带光通信提供更高的增益. 这项研究表明了可扩展,高性能OPA克服当前局限性的途径.

科学领域:

光子学和光学工程光子学和光学工程
材料科学 (化) 材料科学

背景情况:

传统的稀土合光学放大器由于光学带宽受到限制,限制了高通量光学通信中的可扩展性.
集成光学参数放大器 (OPA) 提供宽带增益,但受到电表尺度设备中波导损失的阻碍.

研究的目的:

调查集成光学参数放大器 (OPA) 的替代波导几何形状,以增强收益.
探索化 (Si₃N₄) 肋带波导的潜力,用于宽带,高收益的OPA.

主要方法:

数值研究比较基于Kerr的非线性光学化平台上的条形和肋形波导.
对一米长的波导的设计考虑,包括状螺旋连接和组速分散的制造耐受性分析.

主要成果:

在Si₃N₄上的肋带波导表现出与最大有效长度的条形波导相比的显著更高的增益,尽管非线性系数较低.
形风格的螺旋连接解决了肋骨波导的增加长度要求.
肋带波导保持相似的性能关于组速度分散的制造容量.

结论:

化肋带波导为在集成光学参数放大器 (OPA) 中实现高增益和宽带宽提供了可行的解决方案.
这项工作使实际的OPA和其他非线性光学设备,如波长转换器和光学采样振荡器,具有更好的性能.

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