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

机译:泵浦波长对掺Yb光纤放大器性能影响的数值模型

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摘要

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.
机译:掺tter光放大器由于其高效率,相对较低的成本以及潜在的非常高的输出功率水平而已成为工业应用的常用工具。掺fiber光纤放大器的效率主要取决于泵浦辐射的吸收,因此,已提出了最佳的泵浦波长,例如915 nm。但是,制造商提供的批量半导体泵浦二极管可能会显示出输出波长的展宽。本文从理论上研究了掺Yb的放大器在不同泵浦波长下的性能,并定义了当泵浦光源未以最佳波长发射时的泵浦功率损失。损失已定义为实现所需增益所需的标准化多余泵浦功率。

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