低光暗化单模RMO光纤。

Low photo darkening single mode RMO fiber.

作者信息

Mattsson Kent E

机构信息

NKT Photonics A/S, Blokken 84, DK-3460 Birkerød, Denmark.

出版信息

Opt Express. 2009 Sep 28;17(20):17855-61. doi: 10.1364/OE.17.017855.

DOI:10.1364/OE.17.017855

PMID:19907573

Abstract

A new reduced mode overlap (RMO) single mode fiber design is proposed and demonstrated. For the first time saturated photo darkening operation is observed in a nominal 350 W Yb / Al co-doped silica fiber laser. After 1500 hours operation less than 7% slope efficiency degradation is found and further 500 hours operation show no degradation.

摘要

提出并演示了一种新型的减少模式重叠（RMO）单模光纤设计。首次在标称功率为350W的镱/铝共掺杂石英光纤激光器中观察到饱和光暗化效应。运行1500小时后，斜率效率下降不到7%，再运行500小时则未观察到下降。