Single-mode operation and spectral depuration by W-type Yb-doped fibers in Q-switched fiber lasers

Chi Cao,Xianfeng Lin,Xiaoliang Wang,Zhilun Zhang,Yingbo Chu,Gui Chen,Lei Liao,Yingbin Xing,Jinggang Peng,Haiqing Li,Nengli Dai,Jinyan Li

Optical Fiber Technology（2023）

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Abstract

•W-type fiber design to improve Q-switched Yb-doped fiber lasers (YDFLs) is proposed.•A fiber was fabricated by employing modified chemical vapor deposition.•The Yb-doped W-type fiber exhibited enhanced beam quality and output spectra.

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Key words

Single-mode operation,Spectral depuration,Optical fibers,W-type fibers,Yb-doped fibers,Q-switched fiber lasers

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