Arbitrary ratio power splitter based on shape optimization for dual-mode operation

IF 2.5 3区物理与天体物理 Q2 OPTICS Optics Communications Pub Date : 2025-04-01 Epub Date: 2025-02-01 DOI:10.1016/j.optcom.2025.131554

Ruitao Zhang , Ye Tian , Junpeng Liao , Haoda Xu , Guangbiao Zhong , Yegang Lu , Yan Li , Shile Wei , Huihong Zhang

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Abstract

Arbitrary ratio power splitters (ARPSs) operating across multiple modes can significantly streamline on-chip mode-division-multiplexing (MDM) systems. However, most ARPSs are designed for single-mode operation. This study introduces a shape optimization method to develop a dual-mode power splitter, enabling simultaneous arbitrary power distribution for both TE₀ and TE₁ modes within a compact size of 16

μ

\times

μ

m. Various splitters with different ratios were created to validate this approach. Across a bandwidth from 1520 nm to 1580 nm, these splitters matched their target ratios with imbalance deviations within ±1 dB and excess loss (EL) below 1.75 dB. Experimental verification of a dual-mode splitter with a 1:2 ratio showed an imbalance deviation within ±0.75 dB and an EL below 1.44 dB over the bandwidth.

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基于形状优化的双模工作任意比功率分配器

跨多种模式工作的任意比功率分配器（arps）可以显著简化片上模分多路复用（MDM）系统。然而，大多数arps都是为单模操作而设计的。本研究引入了一种形状优化方法来开发双模功率分配器，在16 μm × 3 μm的紧凑尺寸内实现TE0和TE1模式同时任意功率分配。创建了不同比例的分离器来验证这种方法。在从1520 nm到1580 nm的带宽范围内，这些分路器与目标比匹配，不平衡偏差在±1 dB以内，过量损耗（EL）低于1.75 dB。对1:2比双模分路器的实验验证表明，在带宽范围内，不平衡偏差在±0.75 dB以内，EL小于1.44 dB。

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.