Design of all-solid leakage channel fibers with large mode area and low bending loss

被引：36

作者：

Saitoh, Kunimasa ^{[1
]}

Tsuchida, Yukihiro ^{[1
]}

Rosa, Lorenzo ^{[1
]}

Koshiba, Masanori ^{[1
]}

Poli, Federica ^{[2
]}

Cucinotta, Annamaria ^{[2
]}

Selleri, Stefano ^{[2
]}

Pal, Mrinmay ^{[3
]}

Paul, Mukul ^{[3
]}

Ghosh, Debashri ^{[3
]}

Bhadra, Shyamal ^{[3
]}

机构：

[1] Hokkaido Univ, Grad Sch Informat Sci & Technol, Sapporo, Hokkaido 0600814, Japan

[2] Univ Parma, Dept Informat Engn, I-43100 Parma, Italy

[3] Cent Glass & Ceram Res Inst, Fiber Opt Div, Kolkata 700032, India

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 06期

基金：

日本科学技术振兴机构;

关键词：

OPTICAL-FIBERS; OPERATION; PROPAGATION; RESISTANT; MU-M(2); LASER;

D O I：

10.1364/OE.17.004913

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate a novel design for all-solid large mode area (LMA) leakage channel fibers (LCFs) for high-power Yb-doped fiber lasers and amplifiers, based on a single down-doped-silica rod ring surrounding a seven-cell pure-silica core, aiming for effectively single-mode behavior and low bending loss characteristics. Through detailed numerical simulations based on the finite element method (FEM), we find that the proposed all-solid LMA-LCFs, having a seven-cell core and two different sizes of down-doped rods, can achieve sufficient differential mode loss and much lower bending loss, as compared with a previously-reported LCF with a one-cell core and six large down-doped-silica rods. (C) 2009 Optical Society of America

引用

下载

页码：4913 / 4919

页数：7

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