基于特殊光栅MMI耦合器的新型硅波导偏振分束器

IF 4.5 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Electron Device Letters Pub Date : 2025-06-30 DOI:10.1109/LED.2025.3584262

Manzhuo Wang;Xinchao Zhang;Yu Xin;Tingyu Liu;Jimin Fang;Xiaoqiang Sun;Yuanda Wu;Daming Zhang

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引用次数: 0

摘要

偏振分束器（PBSs）是片上相干光通信和偏振分复用系统的重要组成部分。由于硅波导的各向同性性质，TE和TM偏振都倾向于沿着相同的光路传播，这使得偏振分离具有挑战性。本文从理论上提出了一种基于非均匀光栅多模干涉波导的新型二氧化硅PBS，并进行了实验验证。由于引入的传播常数的差异，可以有效地分离输入的横向电极化和横向磁极化。当偏振消光比为bbb10 dB，双偏振传输损耗<8 dB时，测量到的光带宽为70 nm，范围为1542 nm ~ 1612 nm。所演示的PBS在低介电常数材料平面光波电路（PLC）平台上具有电势。

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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Novel Silica Waveguide-Type Polarization Beam Splitters Based on MMI Coupler With Extraordinary Gratings

Polarization beam splitters (PBSs) are essential components in on-chip coherent optical communication and polarization division multiplexing systems. Due to the isotropic nature of the silica waveguide, both TE and TM polarizations tend to propagate along the same optical path, making polarization separation challenging. A novel silica PBS based on the multimode interference waveguide with extraordinary gratings is theoretical proposed and experimentally demonstrated. Due to the introduced propagation constants difference, the input transverse electric (TE) and transverse magnetic (TM) polarizations can be effectively split. When the polarization extinction ratio is >10 dB and the transmission loss is <8 dB for both polarizations, the measured optical bandwidth is 70 nm, which ranges from 1542 nm to 1612 nm. The demonstrated PBS has potentials in low dielectric constant material planar lightwave circuit (PLC) platforms.

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来源期刊

IEEE Electron Device Letters 工程技术-工程：电子与电气

CiteScore

8.20

自引率

10.20%

发文量

551

审稿时长

1.4 months

期刊介绍： IEEE Electron Device Letters publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors.