概括
本研究介绍了一种新的设计,用于高效率的宽带模式转换器,使用立方斜线插值用于模式划分多重复合系统. 该方法提高了转换效率,并为各种波导设计提供了灵活性.
科学领域:
- 光子学和光学通信技术
- 集成光学 集成光学 集成光学
- 波导技术技术 波导技术
背景情况:
- 模式转换器是模式分割复杂化 (MDM) 系统中必不可少的组件.
- 高效和宽带模式转换器对于提高光通信能力至关重要.
研究的目的:
- 为高转换效率 (CE) 和宽带模式转换器提出并展示灵活的设计方法.
- 为了利用立方斜线插曲设计不规则形状的波导曲线.
主要方法:
- 采用立方线插曲来定义模式转换器的波导边界.
- 设计和理论分析了具有不同多模波导宽度的TE0-TE1和TE0-TE2转换器.
- 使用标准造工艺制造的设备.
主要成果:
- 在1550 nm时,TE0-TE1的理论转换效率为-0.026 dB (99.4%),TE0-TE2的转换效率为-0.039 dB (99.1%).
- 在广泛的波长范围 (1530-1565 nm) 中,测量的转换效率超过了-0.419 dB (90.8%).
- 具有不同波导宽度 (1微米和1.1微米) 的设计灵活性.
结论:
- 立方线间波法使得高性能模式转换器的设计成为可能.
- 拟议的设计可以适应不同的模式顺序和波导配置.
- 展示的设备显示出出色的效率和宽带性能,适合于实际的MDM系统.
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