Flat-top mode from a 50 μm-core Yb-doped leakage channel fiber

被引：27

作者：

Kong, Fanting ^{[1
]}

Gu, Guancheng ^{[1
]}

Hawkins, Thomas W. ^{[1
]}

Parsons, Joshua ^{[1
]}

Jones, Maxwell ^{[1
]}

Dunn, Christopher ^{[1
]}

Kalichevsky-Dong, Monica T. ^{[1
]}

Wei, Kanxian ^{[2
]}

Samson, Bryce ^{[2
]}

Dong, Liang ^{[1
]}

机构：

[1] Clemson Univ, ECE COMSET, Anderson, SC 29625 USA

[2] Nufern, East Granby, CT 06026 USA

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 26期

关键词：

IMPACT;

D O I：

10.1364/OE.21.032371

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate for the first time a flat-top mode from a 50 mu m-core Yb-doped leakage channel fiber (LCF). The flat intensity distribution leads to an effective mode area of similar to 1880 mu m(2) in the straight fiber, an over 50% increase comparing to that of regular LCF with the same core diameter. The flat-top mode was achieved by using a uniform Yb-doped silica glass in the core center with an index of similar to 2x10(-4) lower than that of the silica background. The fiber was also tested in a laser configuration, demonstrating an optical-to-optical efficiency of similar to 77% at 1026 nm with respect to the pump at 975 nm. (C) 2013 Optical Society of America

引用

页码：32371 / 32376

页数：6

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