Polarization-dependent gain in bismuth-doped phospho- and germanosilicate fiber amplifiers

被引：0

作者：

Elopov, Alexander, V ^{[1
]}

Riumkin, Konstantin E. ^{[1
]}

Afanasiev, Fedor, V ^{[2
]}

Alyshev, Sergey, V ^{[1
]}

Kharakhordin, Alexander, V ^{[1
]}

Khegai, Aleksandr M. ^{[1
]}

Firstova, Elena G. ^{[1
]}

Firstov, Sergei, V ^{[1
]}

Melkumov, Mikhail A. ^{[1
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Dianov Fiber Opt Res Ctr, 38 Vavilov Str, Moscow 119333, Russia

[2] Russian Acad Sci, GG Devyatykh Inst Chem High Pur Subst, 49 Tropinin Str, Nizhnii Novgorod 603951, Russia

来源：

OPTICS LETTERS | 2024年 / 49卷 / 18期

基金：

俄罗斯科学基金会;

关键词：

TRANSMISSION;

D O I：

10.1364/OL.532968

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Polarization-dependent gain (PDG) effect was studied in a conventional core-pumping configuration of bismuth-doped fiber amplifiers (BDFAs) based on PANDA-type phosphoand germanosilicate core fibers. The PDG value was determined as the gain difference between the orthogonal signal polarizations, which was found to be in range of 2.5-3 dB at total gain of >20 dB in such BDFAs. This effect is more pronounced for BDFA with a germanosilicate fiber. The experimental results are in a good agreement with the calculated data derived from the simulation model, relying on the anisotropy parameter of bismuth active centers (BACs) obtained from the degree of luminescence polarization, which ranges between 9 and 12 degrees lc for BACs-Si and 18 and 22 degrees lc for BACs-P. The obtained data can be useful for the optimization of performance of BDFAs and studying structural peculiarities of BACs. (c) 2024 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

引用

页码：5300 / 5303

页数：4

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