title: Gain switch laser based on micro-structured Yb-doped active fiber.
abstract: In this paper a near infrared gain-switched fiber laser based on oscillator stage only design with high peak power is presented. Output pulses reached 2.3 kW of peak power and duration of less than 60 ns. The dependence of the laser pulse duration on operation parameters was measured and theoretically explained. As the setup is based on flexible micro structured single polarization fiber, the laser output exhibits high polarization extinction ratio. Due to the narrow output spectrum the setup is suitable for second harmonic generation.
authors.forename: Vid
authors.initials: V
authors.lastname: Agrež
authors.forename: Rok
authors.initials: R
authors.lastname: Petkovšek