All-fiber Q-switched erbium-doped fiber laser generation with SMF-SIMF-SMF structure as artificial saturable absorber

Yu Chen,Kaharudin Dimyati,Irfan Anjum Badruddin,Sarfaraz Kamangar,Sulaiman Wadi Harun

Infrared Physics & Technology（2024）

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摘要

•Combination of single-mode fibre with step-index multimode fibre as saturable absorber.•The Q-switching is caused by the Kerr-effect of multimode interference.•Repetition rate of the Q-switched laser is tunable from 87 to 158 kHz.•The minimum pulse width is 2.5 µs.

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