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.

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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.