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Updated: May 18, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Efficient 2.87 μm fiber laser passively switched using a semiconductor saturable absorber mirror
Jianfeng Li1, Darren D Hudson, Yong Liu
1Institute of Photonics and Optical Science and Centre for Ultrahigh bandwidth Devices for Optical Systems, School of Physics, University of Sydney, Camperdown, Australia. lijianfeng@uestc.edu.cn
Abstract:
A passively switched Ho(3+), Pr(3+) codoped fluoride fiber laser using a semiconductor saturable absorber mirror (SESAM) is demonstrated. Q-switching and partial mode-locking were observed with the output power produced at a slope efficiency of 24% with respect to the absorbed pump power. The partially mode-locked 2.87 μm pulses operated at a repetition rate of 27.1 MHz with an average power of 132 mW, pulse energy of 4.9 nJ, and pulse width of 24 ps.
