Optical fiber with varied flat chromatic dispersion

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2024-09-14 DOI:10.1016/j.yofte.2024.103972

Maciej Grzesiak, Krzysztof Poturaj, Mariusz Makara, Paweł Mergo

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引用次数: 0

Abstract

This paper investigates the design and properties of the conventional all-solid silica based flat dispersion specialty optical fiber. The design utilizes depressed-clad type of refractive index profile which allows for precise control of the optical fiber modal properties, particularly the chromatic dispersion. Specifically designing the dopants concentrations and depressed clad to core diameter ratio allows to obtain optical fibers with flat chromatic dispersion ranging from anomalous to normal dispersion regime. The regime and the values of chromatic dispersion in optical fibers is obtained through the change of the core diameter with the refractive index profile being the same in all optical fibers. The influence of the dopant choice on the mechanical and optical properties is shown using finite element method (FEM) studies. The study demonstrates that fluorine is a better candidate than boron for optical fiber designs that require precise chromatic dispersion characteristics. Six optical fibers were manufactured with the same refractive index profile differing with core radius. This allowed to obtain optical fibers that have chromatic dispersion in anomalous region (17.82 ps/(nm∙km) at 1.96 µm) for the fiber DCFDF1 and normal region (−115.14 ps/(nm∙km) at 1.57 µm) for the fiber DCFDF6.

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具有不同平面色散的光纤

本文研究了传统全固态二氧化硅平色散特种光纤的设计和特性。该设计采用了凹陷包层型折射率轮廓，可精确控制光纤的模态特性，尤其是色散。通过对掺杂剂浓度和凹陷包层与纤芯直径比进行专门设计，可获得从异常色散到正常色散的扁平色散光纤。在所有光纤的折射率曲线都相同的情况下，通过改变纤芯直径可以获得光纤的色度色散机制和色度色散值。有限元法（FEM）研究显示了掺杂剂选择对机械和光学特性的影响。研究表明，对于需要精确色散特性的光纤设计来说，氟比硼更适合。研究人员制造了六根具有相同折射率轮廓的光纤，不同光纤的纤芯半径各不相同。这使得 DCFDF1 光纤在异常区域（1.96 微米处为 17.82 ps/(nm∙km)）和 DCFDF6 光纤在正常区域（1.57 微米处为 -115.14 ps/(nm∙km)）具有色散特性。

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

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.