Application and analysis of three-layer-core structure in single-mode large-mode-area fiber with low bending loss-Reference-Cited by-同舟云学术

Application and analysis of three-layer-core structure in single-mode large-mode-area fiber with low bending loss

Published:2021 Issue:22 Volume:70 Page:224214
ISSN:1000-3290
Container-title:Acta Physica Sinica
language:
Short-container-title:Acta Phys. Sin.

Author:

Zheng Si-Wen,Liu Ya-Zhuo,Luo Xiao-Ling,Wang Li-Hui,Zhang Na,Zhang Jing-Jing,Jin Chuan-Yang,Xu Bing-Li,Qu Qiang,Chen Ling,

Abstract

A three-layer-core single-mode large-mode-area fiber with low bending loss is investigated in this paper. The three-layer structure in the core which is comprised of core-index layer, cladding-index layer and depression-index layer, can achieve large-effective-area Aeff while maintaining low-bending-loss without deteriorating cutoff behaviors. The large-mode-area of 100–330 μm<sup>2</sup> can be achieved in the fiber. The effective area Aeff can be further enlarged by adjusting the layer parameters. Furthermore, the bending property can be improved in this three-layer-core structure. The bending loss can decrease by 2–4 orders of magnitude compared with the bending loss of the conventional step-index fiber with the same Aeff. These characteristics of three-layer-core fiber suggest that it can be used in large-mode-area wide-bandwidth high-capacity transmission, or high-power optical fiber laser and amplifier in the optical communications, which can be conducive to studying the basic physical layer structure of big data storage, reading, calculation and transmission applications and so on.

Publisher

Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences

Subject

General Physics and Astronomy

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