基于多模干涉仪、面向 840 nm 工作的宽带低损耗超低串扰波导交叉
光学
2020-02-27 v1 应用物理
摘要
宽带低损耗且超低串扰的波导交叉是光子集成电路的关键组件，可实现功能组件更高的集成密度以及版图布局更大的灵活性。我们报道了基于多模干涉仪结构的优化氮化硅波导交叉的设计，用于 790 nm 至 890 nm 近红外波长区域内 TE/TE-like、TM/TM-like 及 TE/TM-like 偏振光的交叉光路。该面向多种偏振模式的交叉设计可在单芯片上实现双偏振工作。所有配置下，单个交叉在 840 nm 处的损耗测得为 0.05 dB。在 100 nm 带宽内损耗低于 0.16 dB。通过三维时域有限差分仿真，串扰估计在 -60 dB 量级。
引用
@article{arxiv.2002.11399,
title = {Broadband low loss and ultra-low crosstalk waveguide crossings based on multimode interferometer for 840 nm operation},
author = {Stefan Nevlacsil and Paul Muellner and Martin Sagmeister and Jochen Kraft and Rainer Hainberger},
journal= {arXiv preprint arXiv:2002.11399},
year = {2020}
}
备注
12 pages, 5 figures \c{opyright} 2020 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved