基于形状优化的任意比例多端口功率分配器的逆向设计

Inverse Design of Multi-Port Power Splitter with Arbitrary Ratio Based on Shape Optimization.

作者信息

Liu Yang, Kang Zhe, Xu Haoda, Zhong Guangbiao, Zhang Ruitao, Fu Chaoying, Tian Ye

机构信息

Department of Basic Courses Teaching, Jilin Business and Technology College, Changchun 130507, China.

National Key Laboratory of Microwave Photonics, College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.

出版信息

Nanomaterials (Basel). 2025 Mar 4;15(5):393. doi: 10.3390/nano15050393.

DOI:10.3390/nano15050393

PMID:40072196

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11901978/

Abstract

Arbitrary ratio power splitters (APSs) play a crucial role in enhancing the flexibility of photonic integrated circuits (PICs) on the silicon-on-insulator (SOI) platform. However, most existing APSs are designed with two output channels, limiting their functionality. In this study, we present a shape optimization method to develop a multiport arbitrary ratio power splitter (MAPS) that enables arbitrary power distribution across three output channels within a compact footprint of 6 µm × 2.7 µm. To validate this approach, two MAPS designs were demonstrated with power ratios of 1:2:1 and 1:2:4. Across a bandwidth range from 1500 nm to 1600 nm, these designs matched the desired power distribution with excess losses (ELs) below 0.5 dB. Experimental results further confirmed the effectiveness of the splitters, with ELs below 1.3 dB over a bandwidth of 1500-1565 nm.

摘要

任意比例功率分配器（APS）在增强绝缘体上硅（SOI）平台上光子集成电路（PIC）的灵活性方面发挥着关键作用。然而，现有的大多数APS设计有两个输出通道，限制了其功能。在本研究中，我们提出一种形状优化方法来开发一种多端口任意比例功率分配器（MAPS），该分配器能够在6 µm×2.7 µm的紧凑尺寸内实现三个输出通道之间的任意功率分配。为验证该方法，展示了两种功率比为1:2:1和1:2:4的MAPS设计。在1500 nm至1600 nm的带宽范围内，这些设计实现了所需的功率分配，额外损耗（EL）低于0.5 dB。实验结果进一步证实了这些分配器的有效性，在1500 - 1565 nm带宽内EL低于1.3 dB。