title: Mid-infrared self-Q-switched Er, Pr:CaF2diode-pumped laser.
abstract: A diode-end-pumped self-Q-switched mid-infrared laser was demonstrated with Er3+, Pr3+co-doped CaF2crystal for, to the best of our knowledge, the first time. Maximum average output power of 262 mW was achieved and the corresponding slope efficiency was 14.9%. Stable self-Q-switched laser pulses as short as 718 ns were obtained with a repetition rate of 52.63 kHz at the center wavelength of 2803.7 nm. This highly compact nanosecond laser using a 3 at. % Er3+and 0.03 at. % Pr3+co-doped CaF2crystal is free from any active or passive modulators in cavity, potentially promising for a micro and integrated diode-pumped mid-infrared laser system.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Liu
authors.forename: Xiuwei
authors.initials: X
authors.lastname: Fan
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.forename: Weiwei
authors.initials: W
authors.lastname: Ma
authors.forename: Jingya
authors.initials: J
authors.lastname: Wang
authors.forename: Liangbi
authors.initials: L
authors.lastname: Su