Relative amplitude noise transfer function of an Yb3+-doped fiber amplifier chain

被引：17
作者：
Gierschke, Philipp [1 ]
Jauregui, Cesar [1 ]
Gottschall, Thomas [1 ]
Limpert, Jens [1 ,2 ,3 ]
机构：
[1] Friedrich Schiller Univ Jena, Inst Appl Phys, Albert Einstein Str 15, D-07745 Jena, Germany
[2] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany
[3] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 12期
基金：
欧洲研究理事会;
关键词：
REFRACTIVE-INDEX CHANGES; GAIN DYNAMICS;
D O I：
10.1364/OE.27.017041
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work we measure the frequency dependent transfer function of the amplitude noise for both the seed and pump power in an Yb3+-doped fiber amplifier chain. In particular, the relative intensity noise transfer function of this amplifier chain in the frequency range of 10 Hz - 100 kHz has been investigated. It is shown that the pump power noise of the pre-amplifier stages is transformed into seed power noise for the next amplification stage. Crucially, the seed power noise in the frequency range of interest is strongly damped by the main-amplifier. This, however, does not happen for the pump power noise. Thus, the noise of the pump of the last amplifier stage is the factor with the strongest impact on the overall noise level of the system. Finally, useful guidelines to minimize the output amplitude noise of an Yb3+-doped fiber amplifier chain are given. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：17041 / 17050
页数：10
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