材料科学
包层(金属加工)
光纤激光器
激光器
光学
光电子学
单模光纤
纤维
光纤
激光阈值
光子晶体光纤
波长
作者
Matthew J. Barber,Peter C. Shardlow,Pranabesh Barua,Jayanta K. Sahu,Andy Clarkson
摘要
Output power levels from 1907 nm Tm fiber laser sources are restricted by low lasing efficiency and challenging thermal management. Here we develop a novel fiber core structure where the Tm dopant material is confined to a ring within the larger undoped glass core. This evolution of dopant profiling has tripled the fiber device lengths and produced 131 W of 1907 nm emission with 64.5% absorbed slope efficiency. This, to the best of our knowledge, is the most efficient 1907 nm Tm fiber laser that has been demonstrated with the capability to perform beyond 100 W output power.
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