Few-mode erbium-doped fiber amplifier based on a multi-inclusions core optical fiber

被引：4

作者：

Trinel, Jean-Baptiste ^{[1
,2
]}

Yammine, Jean ^{[1
]}

Le Cocq, Guillaume ^{[1
]}

Bouwmans, Geraud ^{[1
]}

Andresen, Esben Ravn ^{[1
]}

Cassez, Andy ^{[1
]}

Plus, Stephane ^{[1
]}

Quiquempois, Yves ^{[1
]}

Labroille, Guillaume ^{[3
]}

Bigot, Laurent ^{[1
]}

机构：

[1] Univ Lille, Univ Lille Sci & Technol, CNRS, UMR 8523,PhLAM Phys Lasers Atomes & Mol, F-59000 Lille, France

[2] Prysmian Grp, 1 Rue Nicolas Joseph Cugnot, F-35000 Rennes, France

[3] Cailabs SAS, 1 Rue Nicolas Joseph Cugnot, F-35000 Rennes, France

来源：

OPTICS EXPRESS | 2023年 / 31卷 / 03期

关键词：

AMPLIFICATION;

D O I：

10.1364/OE.473902

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work, we demonstrate and evaluate a new design of micro-structured core erbium-doped few-mode fiber to be used as optical amplifier in the context of mode-division multiplexing. This concept is proposed so as to better control the distribution of the Er3+ ions in the core area, thus permitting to adjust the overall differential modal gains between the different signal modes. The design presented here consists of 19 erbium-doped inclusions embedded in a pedestal geometry guiding 10 modes in the C-band. It has been optimized numerically so as to reach the equalized amplification of all the signal modes. The fiber has been realized and combined with custom-made dual-wavelength mode multiplexers based on multi-plane light conversion to shape the signal and pump beams. Amplification properties have finally been evaluated experimentally.(c) 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：4444 / 4453

页数：10

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