title: Diode-pumped continuous wave tunable and graphene Q-switched Tm:LSO lasers.
abstract: We have investigated the lasing characteristics of Tm:LSO crystal in three operation regimes: continuous wave (CW), wavelength tunable and passive Q-switching based on graphene. In CW regime, a maximum output power of 0.65 W at 2054.9 nm with a slope efficiency of 21% was achieved. With a quartz plate, a broad wavelength tunable range of 145 nm was obtained, corresponding to a FWHM of 100 nm. By using a graphene saturable absorber mirror, the passively Q-switched Tm:LSO laser produced pulses with duration of 7.8 μs at 2030.8 nm under a repetition rate of 7.6 kHz, corresponding to pulse energy of 14.0 μJ.
authors.forename: T L
authors.initials: TL
authors.lastname: Feng
authors.forename: S Z
authors.initials: SZ
authors.lastname: Zhao
authors.forename: K J
authors.initials: KJ
authors.lastname: Yang
authors.forename: G Q
authors.initials: GQ
authors.lastname: Li
authors.forename: D C
authors.initials: DC
authors.lastname: Li
authors.forename: J
authors.initials: J
authors.lastname: Zhao
authors.forename: W C
authors.initials: WC
authors.lastname: Qiao
authors.forename: J
authors.initials: J
authors.lastname: Hou
authors.forename: Y
authors.initials: Y
authors.lastname: Yang
authors.forename: J L
authors.initials: JL
authors.lastname: He
authors.forename: L H
authors.initials: LH
authors.lastname: Zheng
authors.forename: Q G
authors.initials: QG
authors.lastname: Wang
authors.forename: X D
authors.initials: XD
authors.lastname: Xu
authors.forename: L B
authors.initials: LB
authors.lastname: Su
authors.forename: J
authors.initials: J
authors.lastname: Xu