Breaking the Size-Tolerance Trade-off in Vertical Couplers via Adjoint-Based Inverse Design

IF 6.8 2区物理与天体物理 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Nanophotonics Pub Date : 2026-07-28 DOI:10.1002/nap2.70211

Ruiqi Liu,Suo Wang,Zeqiu Liu,Shiyu Mei,Jiahui Chi,Haiyang Yu,Yulian Cao,Jianguo Liu

引用次数: 0

Abstract

A physics-guided inverse design framework combines physical insight with adjoint optimization by placing dense control points in the phase-near-matched region. This guided strategy yields a 20 μm III–V-on-silicon coupler with 98.11% efficiency, > 80% efficiency at 1.1 μm misalignment, and record high tolerance per unit length.

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基于伴随逆设计打破垂直耦合器尺寸公差权衡

物理导向的逆设计框架通过在相位近匹配区域放置密集控制点，将物理洞察力与伴随优化相结合。这种导向策略产生了20 μm III-V-on-silicon耦合器，效率为98.11%，在1.1 μm错位时效率为bbb80 %，并且单位长度的公差很高。

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

Nanophotonics NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

13.50

自引率

6.70%

发文量

358

审稿时长

7 weeks

期刊介绍： Nanophotonics, published in collaboration with Sciencewise, is a prestigious journal that showcases recent international research results, notable advancements in the field, and innovative applications. It is regarded as one of the leading publications in the realm of nanophotonics and encompasses a range of article types including research articles, selectively invited reviews, letters, and perspectives. The journal specifically delves into the study of photon interaction with nano-structures, such as carbon nano-tubes, nano metal particles, nano crystals, semiconductor nano dots, photonic crystals, tissue, and DNA. It offers comprehensive coverage of the most up-to-date discoveries, making it an essential resource for physicists, engineers, and material scientists.