title: Efficient 2.87 μm fiber laser passively switched using a semiconductor saturable absorber mirror.
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.
authors.affiliation: Institute 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
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Li
authors.forename: Darren D
authors.initials: DD
authors.lastname: Hudson
authors.forename: Yong
authors.initials: Y
authors.lastname: Liu
authors.forename: Stuart D
authors.initials: SD
authors.lastname: Jackson