双阶折射率光纤中差模延迟的结构参数依赖性

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

Optical Fiber Technology Pub Date : 2025-02-28 DOI:10.1016/j.yofte.2025.104172

Taro Iwaya , Yuto Sagae , Taiji Sakamoto , Takashi Matsui , Takanori Sato , Kunimasa Saitoh , Kazuhide Nakajima

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引用次数: 0

摘要

本文研究了一种由纯二氧化硅芯、掺f外芯和掺f包层组成的双阶折射率2lp光纤中瑞利散射损耗和差分模延迟（DMD）最小化的结构。当DMD = 0 ns/km时，与掺有梯度指数（GI）的玻璃芯的2lp模光纤相比，瑞利散射损耗降低了13%。我们以最优结构考察了结构变化对DMD的影响，发现径向结构变化对DMD的影响较大。在双阶折射率2lp模式光纤中，需要小于2.3%的径向结构变化来实现低DMD。

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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Structural parameter dependence of differential mode delay in dual-step index core based 2LP-mode fiber

This study investigates a structure for minimizing Rayleigh scattering loss and differential mode delay (DMD) in a dual-step index 2LP-mode fiber which is composed of a pure silica center core, F-doped outer core and F-doped cladding. The optimum structure with DMD = 0 ns/km shows a Rayleigh scattering loss reduction of 13 % compared to that of the 2LP-mode fiber with a graded-index (GI) GeO₂-doped glass core. We examined the effect of structural change on the DMD with the optimum structure and found that the structural change in the radial direction strongly affects the DMD. A radial structure change of less than 2.3 % is required to achieve low DMD in a dual-step index 2LP-mode fiber.

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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.