Mode instability in Yb3+-doped fiber amplifiers of continuous and pulsed signal

被引：0

作者：

Vershinin, O. ^{[1
]}

Tyrtyshnyy, V. ^{[1
]}

Kuznetsov, M. ^{[2
]}

Antipov, O. ^{[2
]}

机构：

[1] NTO IRE Polus, Fryazino, Russia

[2] RAS, Inst Appl Phys, Nizhnii Novgorod, Russia

来源：

2014 INTERNATIONAL CONFERENCE LASER OPTICS | 2014年

关键词：

Mode instability; LMA fibers; Yb3+;

D O I：

暂无

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：

Spatio-temporal instability of fundamental mode in Yb3+-doped large mode area polarization-maintaining fiber amplifiers was analyzed. Limitations of the amplifier output power and gain were investigated depending on the input signal parameters: spectral width, power level and polarization. The influence of backward reflection of the optical waves on the mode-instability threshold was also examined. The traveling electronic and thermal refractive index gratings following the optically-induced population gratings were found to provide the energy transfer from the main mode to the higher-order modes.

引用

页数：1

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