抗谐振纳米网空心芯光纤的超宽动态带宽调制

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-06-20 DOI:10.1109/JPHOT.2025.3581681

Ricardo E. da Silva;Cristiano M. B. Cordeiro

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引用次数: 0

摘要

我们首次实验证明了一种声调制抗共振纳米网空心芯光纤（N-HCF）。N-HCF包含两个直径差为5 μm的偏心空芯，由二氧化硅纳米网隔开。我们分析模拟了N-HCF的芯径、包层壁和纳米网厚度对750 ~ 1200nm导基模（HE11）和高阶模（TE01、TM01）的约束损耗、有效指数和波长的影响。对声波的相位匹配和模态beatlength进行了估计和讨论。制作的3.6 cm长的声光器件在低驱动电压（10 V）下提供高调制深度（高达8 dB），同时调制创纪录的带宽（高达450 nm）。模拟和测量结果为设计、建模和表征N-HCF的传输频谱和调制性能提供了有用的见解。这些成就使得高效、紧凑、快速的全光纤传感器和调制器有望应用于脉冲光纤激光器。

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Ultrawide Dynamic Bandwidth Modulation of an Antiresonant Nanoweb Hollow-Core Fiber

We experimentally demonstrate an acoustically modulated antiresonant nanoweb hollow-core fiber (N-HCF) for the first time. The N-HCF contains two off-center air cores with a diameter difference of 5 μm, separated by a nanoweb of silica. We analytically simulate the influence of the N-HCF’s core diameter, cladding wall, and nanoweb thicknesses on the confinement losses, effective indices, and beatlengths of the guided fundamental (HE11) and higher-order modes (TE01, TM01), from 750 to 1200 nm. The phase-matching of the acoustic waves and modal beatlengths is also estimated and discussed. The fabricated 3.6 cm long acousto-optic device modulates record-wide bandwidths (up to 450 nm) while providing high modulation depths (up to 8 dB) at low drive voltages (10 V). Simulated and measured results provide useful insights for designing, modeling, and characterizing the N-HCF’s transmission spectrum and modulation performance. These achievements lead to highly efficient, compact, and fast all-fiber sensors and modulators promising for application in pulsed fiber lasers.

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来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.