Packaged ultrahigh-Q silica hollow microrod WGM resonator with simplified modes for nonlinear photonics

IF 5 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-10-01 DOI:10.1016/j.optlastec.2025.113981

Zhaofeng Kang , Binbin Yang , Jiacheng Liu , Yang Wang , Di Tang , Lei Zhang , Keyi Wang , Yu Yang

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引用次数: 0

Abstract

This study analyzed the influence of resonator edge curvature on resonator modes, improved the processing technology for producing silica microrod resonators via CO₂ lasers, and developed a hollow microrod resonator with an ultrahigh Q-factor. Simulation results showed that reducing the axial width of the resonator and increasing the axial cross-sectional curvature effectively suppressed the generation of high-order axial modes in the resonator. The edge morphology of the resonator could be easily controlled because of the improved processing technology, and hollow microrods with an ultrahigh Q-factor could be produced. A package that could effectively couple the microrod resonator with tapered fiber for long-term stability was also designed. In addition, the generation of Kerr–Raman combs was demonstrated using the packaged microrod resonator. Experimental results demonstrated that the microrod resonator had an ultrahigh Q-factor and a concise mode. It is expected to play an important role in various nonlinear photonics applications, such as optical frequency comb generation and quantum information.

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具有非线性光子学简化模式的封装超高q硅空心微棒WGM谐振器

本研究分析了谐振腔边缘曲率对谐振腔模式的影响，改进了CO2激光制备二氧化硅微棒谐振腔的加工工艺，研制出了超高q因子的空心微棒谐振腔。仿真结果表明，减小谐振腔轴向宽度和增大轴向截面曲率可以有效抑制谐振腔内高阶轴向模态的产生。由于加工工艺的改进，使得谐振腔边缘形貌易于控制，可以生产出具有超高q因子的空心微棒。设计了一种能够将微棒谐振器与锥形光纤有效耦合的封装，使其具有长期稳定性。此外，利用封装的微棒谐振器演示了克尔-拉曼梳的产生。实验结果表明，该微棒谐振器具有超高的q因子和简洁的模式。它有望在各种非线性光子学应用中发挥重要作用，如光频梳的产生和量子信息。

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 and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems