概括
我们开发了一种超宽带双尖边缘合器,用于化光子学,在广泛的波长范围内实现了TE和TM两种偏振的90%以上的合效率. 这种先进的合器提高了高数值孔径纤维的性能.
科学领域:
- 光子学和光学工程的工程.
- 材料科学 材料科学 材料科学
背景情况:
- 边缘合器是光子集成电路中的关键组件,用于在光纤和波导之间合光.
- 现有的单端合器经常遭受偏振取决于损失和带宽的限制,特别是当与高数值孔径 (NA) 纤维一起使用时.
研究的目的:
- 设计和演示具有高和极化不敏感的合效率的超宽带双尖边缘合器.
- 在化平台上为高NA纤维实现高效的光合.
主要方法:
- 用于设备制造的化光子平台.
- 采用先进的光学模拟来预测合性能.
- 进行实验测量以验证各种波长和偏振的模拟结果.
主要成果:
- 在1000-2000 nm的TE和TM两极化中,实现了超过90%的模拟合效率.
- 预测超高TE模式合效率 (>95%) 在760nm带宽.
- 实验测量了97.1% (双尖) 和95.7% (单尖) 的峰值合效率.
- 在1450-1640纳米范围内显示出极化不敏感性,效率高于90%.
- 在1280nm时,已确认具有94%效率的宽带宽.
结论:
- 双尖边缘合器在效率和带宽方面明显优于传统的单尖设计.
- 证明的极化不敏感性和宽带宽使其适合要求苛刻的光子应用.
- 这项技术为开发紧且高效的光子设备提供了一个有前途的基础.
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