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Numerical modeling of the impact of pump wavelength on Yb-doped fiber amplifier performance

Ali Albalawi, Hongna Zhu, S. Taccheo, A. Chiasera, M. Ferrari, Jafar Al-Zubi, Omar Al-Zubi, Stefano Taccheo Orcid Logo

Optical and Quantum Electronics, Volume: 48, Issue: 11

Swansea University Author: Stefano Taccheo Orcid Logo

Abstract

Ytterbium-doped optical amplifiers have become common tools for industrial applications due to their high efficiency, relatively low cost and potentially very high output power level. The efficiency of an ytterbium-doped fiber amplifier depends mainly on the absorption of pump radiation, and, theref...

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Published in: Optical and Quantum Electronics
ISSN: 0306-8919 1572-817X
Published: 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa30992
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Abstract: Ytterbium-doped optical amplifiers have become common tools for industrial applications due to their high efficiency, relatively low cost and potentially very high output power level. The efficiency of an ytterbium-doped fiber amplifier depends mainly on the absorption of pump radiation, and, therefore, optimum pump wavelengths have been proposed such as 915 nm. However, the semiconductor pump diodes batch supplied by manufacturers may exhibit a spread in the output wavelength. This paper theoretically investigates the performance of Yb-doped amplifiers for different pump wavelengths and defines the pump power penalty when the pump source does not emit at the optimum wavelength. The penalty has been defined as normalized excess pump power required to achieve the desired gain.
College: College of Engineering
Issue: 11