高平均功率大模场光纤放大器，具有稳健的单模运行。

High average power large-pitch fiber amplifier with robust single-mode operation.

机构信息

Friedrich-Schiller-University Jena, Institute of Applied Physics, Jena, Germany.

出版信息

Opt Lett. 2011 Mar 1;36(5):689-91. doi: 10.1364/OL.36.000689.

DOI:10.1364/OL.36.000689

Abstract

Ytterbium-doped large-pitch fibers with very large mode areas are investigated in a high-power fiber amplifier configuration. An average output power of 294 W is demonstrated, while maintaining robust single-mode operation with a mode field diameter of 62 μm. Compared to previous active large-mode area designs, the threshold of mode instabilities is increased by a factor of about 3.

摘要

掺镱大模场光纤在高功率光纤放大器结构中进行了研究。在保持 62μm 模场直径的稳健单模运行的同时，实现了 294W 的平均输出功率。与以前的主动大模场面积设计相比，模式不稳定性的阈值提高了约 3 倍。