Low loss and wide-band photonic crystal waveguide bend with an open resonator

IF 2.2 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-04-19 DOI:10.1016/j.optcom.2025.131904

Menghan Ma, Kan Chen, Ran Bi, Xuan She, Lei Wang, Xiaowu Shu

引用次数: 0

Abstract

In this paper, we study the resonant transmission waveguide bend in a two-dimensional photonic crystal. Based on the analysis of the wave impedance at the bend, an open resonator structure with low Q is proposed, which can effectively guide the light wave at the bend. Using the open resonator structure, we propose a simple, compact design of the bent waveguide, which only requires manipulating a single air hole to obtain superior performance. We verify that the designed structures show a low loss, broadband performance for both 60° and 120° bends, by finite element numerical simulations.

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低损耗宽频带光子晶体波导弯曲与一个开放的谐振腔

本文研究了二维光子晶体中的谐振传输波导弯曲。基于对弯曲处波阻抗的分析，我们提出了一种具有低 Q 值的开放式谐振器结构，它能在弯曲处有效地引导光波。利用开放式谐振器结构，我们提出了一种简单、紧凑的弯曲波导设计方案，只需操纵一个气孔就能获得优异的性能。我们通过有限元数值模拟验证了所设计的结构在 60° 和 120° 弯曲时都具有低损耗和宽带性能。

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

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.