Design of High-Gain Single-Stage and Single-Pass Nd:YVO4 Amplifier Pumped by Fiber-Coupled Laser Diodes: Simulation and Experiment
Design of High-Gain Single-Stage and Single-Pass Nd:YVO4 Amplifier Pumped by Fiber-Coupled Laser Diodes: Simulation and Experiment
复制标题
光纤耦合激光二极管泵浦的高增益单级单通 Nd:YVO4 放大器的设计：仿真与实验
DOI：
10.1109/jqe.2016.2585352
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发表时间：
2016-06
影响因子：
2.5
通讯作者：
Liu Q
中科院分区：
文献类型：
--
作者：
Nie Mingming;Liu Qiang;Ji Encai;Cao Xuezhe;Fu Xing;Gong Mali;Liu Q
本文分析了影响高增益Nd：YVO4放大器性能的因素，给出了各因素之间的关系示意图。建立了一个包括泵浦吸收饱和效应和沿光束传输方向的重叠效率以及由于高浓度掺杂引起的非辐射衰变的模型。通过改变掺杂浓度、泵浦光束质量和泵浦激光焦距，研究了激光放大器的性能。为了获得高的增益，低掺杂浓度的样品需要与具有良好光束质量的长晶体和激光二极管配合使用。基于该模型，可以对不同掺杂浓度和不同光束质量的泵浦激光焦距进行优化。进行了实验，结果与仿真结果吻合较好。此外，还实现了单级单程放大器，小信号增益为51dB。
In this paper, factors influencing the performance of high-gain Nd:YVO4 amplifiers are analyzed and a schematic map of the relationships between different factors is given. A model, including the pump absorption saturation effect and overlap efficiency along the beam propagation direction, as well as non-radiative decays due to high doping concentration, is developed. The performance of laser amplifier is studied by changing doping concentration, pump beam quality, and focal size of pump laser. To get high gain, samples with low doping concentration should cooperate with long crystals and laser diodes with good beam quality. Based on the model, the focal radius of pump laser could be optimized for different doping concentrations and beam qualities of pump laser. Experiments were conducted and the results agreed well with the simulated ones. Moreover, a single-stage and single-pass amplifier was realized, achieving a small-signal gain of 51 dB.
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影响因子：
2.4
作者：
C. Paré
通讯作者：
C. Paré
DOI：
10.1007/s00340-002-0997-2
发表时间：
2002-10
期刊：
Applied Physics B
影响因子：
--
作者：
S. Forget;F. Balembois;P. Georges;P. Devilder
通讯作者：
S. Forget;F. Balembois;P. Georges;P. Devilder
影响因子：
2.4
作者：
F. Sanchez;A. Chardon
通讯作者：
F. Sanchez;A. Chardon
影响因子：
3.8
作者：
C. Bollig;C. Jacobs;M. Esser;E. Bernhardi;H. von Bergmann
通讯作者：
C. Bollig;C. Jacobs;M. Esser;E. Bernhardi;H. von Bergmann
影响因子：
2.5
作者：
F. Balembois;F. Falcoz;F. Kerboull;F. Druon;P. Georges;A. Brun
通讯作者：
F. Balembois;F. Falcoz;F. Kerboull;F. Druon;P. Georges;A. Brun