Numerical modeling and optimization of hundred-watt-level 2.8 μm and 1.6 μm cascaded heavily-erbium-doped fluoride fiber amplifiers

Yang Xiao,Xusheng Xiao,Yantao Xu,Shengfei She,Chengzhen Liu,Haitao Guo

OPTICS AND LASER TECHNOLOGY（2022）

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摘要

•A dual-seed cascaded heavily erbium-doped fluoride fiber amplifier scheme was proposed.•The maximum power of 2.8 μm laser theoretically exceeds 100 W.•There is no excited state absorption at ∼1.675 μm in a heavily erbium-doped fluoride fiber laser.

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关键词

Cascade amplification,Heavily erbium doped,Fluoride fiber,Fiber amplifiers,Numerical modeling

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