Optimized few-mode EDFA of applicability for variable mode groups with an extended doping region and a PSO algorithm

被引：3

作者：

Huang, Xiheng ^{[1
,2
]}

Zeng, Yan ^{[1
,2
]}

Fang, Yihong ^{[1
,2
]}

Zhang, Xinyi ^{[1
,2
]}

Wang, Shan ^{[1
,2
]}

Xu, Ou ^{[1
,2
]}

Fu, Songnian ^{[1
,2
]}

Li, Jianping ^{[1
,2
]}

Qin, Yuwen ^{[1
,2
,3
]}

机构：

[1] Guangdong Univ Technol, Inst Adv Photon Technol, Sch Informat Engn, Guangzhou 510006, Peoples R China

[2] Guangdong Univ Technol, Guangdong Prov Key Lab Informat Photon Technol, Guangzhou 510006, Peoples R China

[3] GDUT, Synergy Innovat Inst, Heyuan 517000, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2022年 / 39卷 / 10期

基金：

中国国家自然科学基金;

关键词：

ERBIUM-DOPED FIBER; AMPLIFIER; GAIN;

D O I：

10.1364/JOSAB.471046

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We employ particle swarm optimization to present a cladding-pumped few-mode erbium-doped fiber amplifier (FM-EDFA) with an extended erbium-doped distribution over the core. By enlarging the radius of the doping region to improve the gain of high-order modes, the differential modal gain (DMG) can be minimized. The proposed FM-EDFA can provide average gain of 21.7 dB and DMG of less than 0.61 dB across the C-band (1530-1565 nm) for seven-mode groups. In addition, the value of the optimal doping radius has been investigated for different numbers of mode groups, which will gradually increase with the number of mode groups. Finally, simulation results indicate acceptable applicability for four- to six-mode groups even using the proposed design. (c) 2022 Optica Publishing Group

引用

页码：2618 / 2624

页数：7

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