Improvement of differential modal gain in a ring-core few-mode erbium-doped polymer optical waveguide amplifier

被引：1

作者：

Yu, Cheng ^{[1
]}

Wang, Fei ^{[2
]}

Gao, Lizhan ^{[1
]}

Shi, Jiahui ^{[1
]}

Li, Changlong ^{[2
]}

Zhao, Dan ^{[2
]}

Zhang, Meiling ^{[1
]}

Hu, Guijun ^{[1
]}

机构：

[1] Jilin Univ, Dept Commun Engn, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 04期

关键词：

FABRICATION; TECHNOLOGY; SYSTEMS;

D O I：

10.1364/OE.514675

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A few-mode erbium-doped waveguide amplifier (FM-EDWA) with a confined Er3+ doped ring structure is proposed to equalize the differential modal gain (DMG). The FM-EDWA amplifying three spatial modes (LP01, LP11a and LP11b) is optimized by genetic algorithm and fabricated using precise lithography overlay alignment technology. We observe gain values of over 14 dB for all modes with DMG of 0.73 dB at 1529 nm pumped only with LP01 for the power of 200 mW. Furthermore, a flat gain of more than 10 dB is demonstrated across 1525-1565 nm, with a sufficiently low DMG of less than 1.3 dB.

引用

页码：6121 / 6129

页数：9

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