基于高集成多模波导栅格的宽带低串扰CWDM4 MUX/DEMUX用于2xFR4模块应用
光学
2026-04-28 v2
摘要
本工作提出一种采用级联多模波导栅格滤波器实现的紧凑型低串扰CWDM4 MUX/DEMUX器。单个滤波器采用有限高斯加窗和正色散设计，实现强侧瓣抑制，同时保持与UV光刻技术兼容的最小特征尺寸。通过级联这些滤波器，我们实现的DEMUX器串扰低于-25 dB，插入损耗低于1 dB，平坦带宽约为18 nm。整个器件仅占据1.6 mm x 40 um的紧凑面积，且通道间距 compatible with commercial TIA和驱动芯片。此外，采用串联-并联混合级联配置可进一步将串扰压制至-40 dB。
引用
@article{arxiv.2604.14954,
title = {High-Integration multimode waveguide grating based CWDM4 MUX/DEMUX with Flat Wide Passband and Ultra-Low Crosstalk for 2xFR4 Module Applications},
author = {Xudong Gao and Chuanneng Luo and Mengxue Tao and Haijiang Yu and Qin Li and Yang Wu and Hongyu Wang and Changfei Hu},
journal= {arXiv preprint arXiv:2604.14954},
year = {2026}
}
备注
Due to irreconcilable internal disputes regarding author ranking, the company requires this preprint to be withdrawn