Numerical Simulation of the Propagation of Pulse Bursts in Fiber Amplifiers With Multiple Timescales

被引：0

作者：

Wang, Shihai ^{[1
]}

Li, Jin ^{[1
]}

Liu, Congcong ^{[1
]}

Xiao, Mingtong ^{[1
]}

Li, Zhezhe ^{[1
]}

He, Jiangyong ^{[1
]}

Liu, Yan-Ge ^{[1
]}

Wang, Zhi ^{[1
]}

机构：

[1] Nankai Univ, Inst Modern Opt, Tianjin Key Lab Microscale Opt Informat Sci & Tech, Tianjin 300350, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2024年 / 36卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Optical fiber amplifiers; Numerical simulation; Finite difference methods; Stimulated emission; Statistics; Sociology; Optical pumping; Laser amplifiers; ytterbium-doped; burst mode; ASE; ULTRASHORT PULSES; ABLATION; SYSTEM; ENERGY;

D O I：

10.1109/LPT.2024.3408235

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

To predict the behavior of high-energy pulse bursts, fine numerical simulation of the propagation of signals and amplified spontaneous emission (ASE) in fiber amplifiers is needed. In this research, a novel theoretical analysis of Yb-doped fiber amplifiers (YDFA) by finite-difference time-domain (FDTD) methods is proposed. This study allows to independently take into account evolutions of signals and ASE between multiple amplification stages. Approaches of mitigating ASE are discussed. Among them, the study of the location of acousto-optic modulator (AOM) is analyzed for the first time. A 15-mJ burst is obtained with burst repetition rate of 1 kHz, and low-level ASE. Our work can bring new insights into the design of high-energy burst-mode Yb-doped fiber amplifiers.

引用

页码：1269 / 1272

页数：4

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