Quantum-limited measurements of intensity noise levels in Yb-doped fiber amplifiers

被引：3
|
作者：
Popp, Alexandra [1 ,2 ,3 ]
Distler, Victor [4 ,5 ]
Jaksch, Kevin [1 ,2 ,3 ]
Sedlmeir, Florian [1 ,2 ]
Mueller, Christian R. [1 ,2 ]
Haarlammert, Nicoletta [4 ]
Schreiber, Thomas [4 ]
Marquardt, Christoph [1 ,2 ]
Tuennermann, Andreas [4 ,5 ]
Leuchs, Gerd [1 ,2 ]
机构：
[1] Max Planck Inst Sci Light, Staudtstasse 2, D-91058 Erlangen, Germany
[2] Friedrich Alexander Univ Erlangen Nurnberg, Inst Opt Informat & Photon, Staudtstr 7 B2, D-91058 Erlangen, Germany
[3] Friedrich Alexander Univ Erlangen Nurnberg, Erlangen Grad Sch Adv Opt Technol SAOT, Paul Gordan Str 6, D-91052 Erlangen, Germany
[4] Fraunhofer Inst Appl Opt & Precis Engn, Albert Einstein Str 7, D-07745 Jena, Germany
[5] Friedrich Schiller Univ Jena, Inst Appl Phys, Albert Einstein Str 15, D-07745 Jena, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2020年 / 126卷 / 08期
关键词：
HIGH-POWER; GAIN DYNAMICS;
D O I：
10.1007/s00340-020-07476-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We investigate the frequency-resolved intensity noise spectrum of an Yb-doped fiber amplifier down to the fundamental limit of quantum noise. We focus on the kHz and low MHz frequency regime with special interest in the region between 1 and 10 kHz. Intensity noise levels up to >= 60 dB above the shot noise limit are found, revealing great optimization potential. Additionally, two seed lasers with different noise characteristics were amplified, showing that the seed source has a significant impact and should be considered in the design of high power fiber amplifiers.
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页数：7
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