Resonantly (in-band) cladding-pumped Yb-free Er-doped fibre laser with record efficiency

被引：2
|
作者：
Zhang, J. [1 ]
Fromzel, V. [1 ]
Dubinskii, M. [1 ]
机构：
[1] USA, Res Lab, 2800 Powder Mill Rd, Adelphi, MD 20783 USA
来源：
ELECTRONICS LETTERS | 2012年 / 48卷 / 20期
关键词：
POWER;
D O I：
10.1049/el.2012.2736
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Power scaling potential with record high efficiency for a resonantly (in-band) cladding-pumped Yb-free Er-doped eye-safe fibre laser utilising the fibre with non-clustering composition and increased cladding pump absorption is domonstrated. While pumping at 1532.5 nm by power-combined fibre-coupled spectrally-narrowed InGaAsP/InP diode laser modules, similar to 47 W of continuous-wave multimode output power at similar to 1590 nm with optical-to-optical efficiency over 77% were achieved. To the best of the authors' knowledge, this is the highest efficiency ever obtained from a cladding-pumped Yb-free Er-doped fibre laser.
引用
收藏
页码：1280 / +
页数：2
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