Compact Polarization-Independent 90:10 Power Divider With Wide Bandwidth

IF 2.4 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2026-02-09 DOI:10.1109/LPT.2026.3662400

Yicheng Huang;Wufei Zhou;Weiye Hu;Zhuoshen Shi;Xudong Wang;Xinhuan Feng;Jianping Yao

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引用次数: 0

Abstract

This letter presents an ultra-compact, polarization-insensitive asymmetric (90:10) power splitter based on a modified multimode interference (MMI) structure on a silicon-on-insulator (SOI) platform. The device integrates a unique combination of rectangular and trapezoidal sections within the MMI region, achieving a remarkably small footprint of only

$3.3~\mu $

$\times 5~\mu $

m. Experimental results demonstrate that the splitter successfully operates over a 100-nm bandwidth (1500-1600 nm), supporting both transverse electric (TE) and transverse magnetic (TM) modes with minimal performance variation. The measured excess loss (EL) remains below 1 dB for the TE mode and below 1.8 dB for the TM mode, while maintaining the target 90:10 splitting ratio. Furthermore, the splitting ratio is highly tunable from 60:40 to 90:10 by simply adjusting the length of the rectangular section, showcasing the versatility the design. This work provides a high-performance solution for applications requiring compact and polarization-independent power splitting in densely integrated photonic circuits.

查看原文本刊更多论文

紧凑型与偏振无关的90:10宽带宽功率分配器

本文介绍了一种基于改进的绝缘体上硅（SOI）平台上的多模干涉（MMI）结构的超紧凑、偏振不敏感的非对称（90:10）功率分配器。该器件在MMI区域内集成了矩形和梯形截面的独特组合，实现了非常小的占地面积，仅为3.3~\mu $ m $ × 5~\mu $ m $。实验结果表明，该分离器成功地在100 nm带宽（1500-1600 nm）上工作，支持横向电（TE）和横向磁（TM）模式，性能变化最小。在TE模式下，测量到的额外损耗（EL）保持在1 dB以下，在TM模式下保持在1.8 dB以下，同时保持目标90:10的分割比。此外，通过简单地调整矩形截面的长度，分割比例在60:40到90:10之间高度可调，展示了设计的多功能性。这项工作为在密集集成光子电路中需要紧凑且与极化无关的功率分裂的应用提供了高性能的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.