Minimizing differential modal gain in cladding-pumped EDFAs supporting four and six mode groups

被引：41

作者：

Kang, Qiongyue ^{[1
]}

Lim, Ee-Leong ^{[1
]}

Poletti, Francesco ^{[1
]}

Jung, Yongmin ^{[1
]}

Baskiotis, Catherine ^{[1
]}

Alam, Shaif-ul ^{[1
]}

Richardson, David J. ^{[1
]}

机构：

[1] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 18期

关键词：

FIBER AMPLIFIERS; MULTIMODE FIBER; LASERS;

D O I：

10.1364/OE.22.021499

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We employ a Genetic Algorithm for the purpose of minimization of the maximum differential modal gain (DMG) over all the supported signal modes (at the same wavelength) of cladding-pumped four-mode and six-mode-group EDFAs. The optimal EDFA designs found through the algorithm provide less than 1 dB DMG across the C-band (1530-1565 nm) whilst achieving more than 20 dB gain per mode. We then analyze the sensitivity of the DMG to small variations from the optimal value of the erbium doping concentration and the structural parameters, and estimate the fabrication tolerance for reliable amplifier performance. (C) 2014 Optical Society of America

引用

页码：21499 / 21507

页数：9

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