具有高模态带宽的标准单模光纤与 1060 nm 波长附近的双模光纤一样适用于高数据速率传输

IF 2.1 4区物理与天体物理 Q2 OPTICS

Photonics Pub Date : 2023-12-29 DOI:10.3390/photonics11010035

Xin Chen, J. E. Hurley, Snigdharaj K. Mishra, J. Stone, Ming-Jun Li

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引用次数: 0

摘要

阶跃指数标准单模光纤作为 1060 nm 波长的双模光纤，可以具有很高的模态带宽。在当前工作中，我们进行了详细研究，发现这种光纤的 LP11 模式对弯曲敏感，激发到 LP11 模式的光会因弯曲而被剥离。我们使用同时激发 LP01 和 LP11 模式的偏移发射和仅激发 LP01 模式的中心发射进行了传输实验，以显示不同条件下的传输性能。我们证明了在同时激发 LP01 和 LP11 模式的情况下，通过 1 千米光纤进行 25 Gb/s NRZ 传输的可行性。我们进一步探索了沟槽辅助弯曲不敏感阶跃指数标准单模光纤的可行性，这种光纤对 LP01 和 LP11 模式都具有良好的弯曲特性，可在 1060 nm 波长进行双模传输。我们发现了一种在 1060 nm 波长下具有高模态带宽的光纤，它至少可以承受 20 mm 直径的弯曲。这种高带宽双模光纤可用于未来基于 1060 nm 波长的 VCSEL 传输。

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Standard Single-Mode Fiber with High Modal Bandwidth as Two-Mode Fiber around 1060 nm for High Data Rate Transmission

A step-index standard single-mode fiber as a two-mode fiber at 1060 nm can have a high modal bandwidth. In the current work, we conducted a detailed study and found that the LP11 mode of such a fiber is bending-sensitive and that the light excited to LP11 mode can be stripped out due to bending. The transmission experiments were conducted using offset launch with both LP01 and LP11 modes excited and center launch with only LP01 mode excited to show transmission performance in different conditions. We demonstrated the feasibility of 25 Gb/s NRZ transmission over 1 km of the fiber when both LP01 and LP11 modes were excited. We further explored the feasibility of a trench-assisted bending-insensitive step-index standard single-mode fiber with good bending properties for both LP01 and LP11 modes for two-mode transmission at 1060 nm. We found a fiber that has high modal bandwidth at 1060 nm and can sustain bending down to at least a 20 mm diameter. The high-bandwidth two-mode fiber can be potentially useful for future 1060 nm-based VCSEL transmission.

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来源期刊

Photonics Physics and Astronomy-Instrumentation

CiteScore

2.60

自引率

20.80%

发文量

817

审稿时长

8 weeks

期刊介绍： Photonics (ISSN 2304-6732) aims at a fast turn around time for peer-reviewing manuscripts and producing accepted articles. The online-only and open access nature of the journal will allow for a speedy and wide circulation of your research as well as review articles. We aim at establishing Photonics as a leading venue for publishing high impact fundamental research but also applications of optics and photonics. The journal particularly welcomes both theoretical (simulation) and experimental research. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material.