Ytterbium-doped large-mode-area all-solid photonic bandgap fiber lasers

被引：80
|
作者：
Gu, Guancheng [1 ]
Kong, Fanting [1 ]
Hawkins, Thomas [1 ]
Parsons, Joshua [1 ]
Jones, Maxwell [1 ]
Dunn, Christopher [1 ]
Kalichevsky-Dong, Monica T. [1 ]
Saitoh, Kunimasa [2 ]
Dong, Liang [1 ]
机构：
[1] Clemson Univ, ECE COMSET, Anderson, SC 29625 USA
[2] Hokkaido Univ, Grad Sch Informat Sci & Technol, Sapporo, Hokkaido 0600814, Japan
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 11期
关键词：
LEAKAGE CHANNEL FIBERS; HIGH-POWER; CRYSTAL FIBER; NM;
D O I：
10.1364/OE.22.013962
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Single-mode operation in a large-mode-area fiber laser is highly desired for power scaling. We have, for the first time, demonstrated a 50 mu m-core-diameter Yb-doped all-solid photonic bandgap fiber laser with a mode area over 4 times that of the previous demonstration. 75W output power has been generated with a diffraction-limited beam and an efficiency of 70% relative to the launched pump power. We have also experimentally confirmed that a robust single-mode regime exists near the high frequency edge of the bandgap. These fibers only guide light within the bandgap over a narrow spectral range, which is essential for lasing far from the gain peak and suppression of stimulated Raman scattering. This work demonstrates the strong potential for mode area scaling of in single-mode all-solid photonic bandgap fibers. (C)2014 Optical Society of America
引用
收藏
页码：13962 / 13968
页数：7
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