title: Single-frequency gain-switched Ho-doped fiber laser.
abstract: We demonstrate a single-frequency gain-switched Ho-doped fiber laser based on heavily doped silicate glass fiber fabricated in-house. A Q-switched Tm-doped fiber laser at 1.95 μm was used to gain-switch the Ho-doped fiber laser via in-band pumping. Output power of the single-frequency gain-switched pulses has been amplified in a cladding-pumped Tm-Ho-codoped fiber amplifier with 1.2 m active fiber pumped at 803 nm. Two different nonlinear effects, i.e., modulation instability and stimulated Brillouin scattering, could be seen in the 10 μm-core fiber amplifier when the peak power exceeds 3 kW. The single-frequency gain-switched fiber laser was operated at 2.05 μm, a popular laser wavelength for Doppler lidar application. This is the first demonstration of this kind of fiber laser.
authors.affiliation: AdValue Photonics, Tucson, Arizona 85714, USA. jgeng@advaluephotonics.com
authors.forename: Jihong
authors.initials: J
authors.lastname: Geng
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
authors.forename: Tao
authors.initials: T
authors.lastname: Luo
authors.forename: Bryson
authors.initials: B
authors.lastname: Case
authors.forename: Shibin
authors.initials: S
authors.lastname: Jiang
authors.forename: Farzin
authors.initials: F
authors.lastname: Amzajerdian
authors.forename: Jirong
authors.initials: J
authors.lastname: Yu