Numerical analysis and optimization of high power single frequency co-doped erbium–ytterbium fiber amplifier

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

Optical Fiber Technology Pub Date : 2025-01-10 DOI:10.1016/j.yofte.2024.104120

Ahlem Guesmi , Mohamed Koubàa , Abdullah S. Karar , Raymond Ghandour , Bilel Neji , Kaboko Jean-Jacques Monga , Hafedh Mahmoud Zayani , Chaouki Guesmi , Mohamed Salhi , Faouzi Bahloul

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引用次数: 0

Abstract

This study presents a comprehensive numerical analysis of a high-power, fully monolithic, single-frequency Erbium–Ytterbium (Er-Yb) fiber amplifier tailored for free-space optical (FSO) applications. Focusing on Erbium Doped Fiber Amplification (EDFA), the investigation aims to understand its behavior and optimize key parameters for enhancing the amplification process. The proposed design consists of four all-fiber master oscillator power amplifier (MOPA) stages, achieving over 20 W of output power at 1550 nm. Specific fiber parameters—such as fiber length, EDF pump power, and signal power—were found to be critical for significantly enhancing EDFA gain. By carefully optimizing these parameters, the performance and efficiency of the amplifier were greatly improved. The four-stage MOPA architecture effectively increases the Brillouin threshold power, allowing for higher output power levels while maintaining single mode performance. Each amplification stage was meticulously designed, with the first stage achieving 280 mW output using a

5.5 μ m

core diameter fiber and 800 mW pump power, the second stage producing 1.55 W output with a

10 μ m

core diameter fiber and 10 W pump power, the third stage reaching nearly 5 W output using a

12 μ m

core diameter fiber and 20 W pump power, and the final stage delivering 20 W output with a

16 μ m

core diameter fiber and 70 W pump power.

Abstract Image

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大功率单频共掺铒镱光纤放大器的数值分析与优化

本研究对一种专为自由空间光学（FSO）应用而设计的大功率、全单片、单频铒镱（Er-Yb）光纤放大器进行了全面的数值分析。以掺铒光纤放大（EDFA）为研究对象，了解其特性并优化关键参数以增强放大过程。提出的设计由四个全光纤主振荡器功率放大器（MOPA）级组成，在1550 nm处实现超过20 W的输出功率。特定的光纤参数——如光纤长度、EDF泵浦功率和信号功率——被发现是显著提高EDFA增益的关键因素。通过对这些参数的优化，大大提高了放大器的性能和效率。四阶段MOPA架构有效地提高了布里渊阈值功率，在保持单模性能的同时允许更高的输出功率水平。每个放大阶段精心设计,实现第一阶段280 mW输出使用5.5μm核心纤维直径和800 mW泵功率,第二阶段生产1.55 W输出10μm核心纤维直径和10 W泵功率,第三阶段达到近5 W输出使用12μm核心纤维直径和20 W泵功率,和最后阶段交付20 W输出16μm核心纤维直径和70 W泵功率。

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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.