An optimized single stage gain-switched ytterbium-doped fiber laser was developed. A pulse as short as 28 ns at 1.4 kW peak power and a maximum peak power of nearly 2 kW at 41 ns pulse duration was achieved. The laser output beam has very good beam quality of M2 ( 1.1, and a spectral bandwidth of 0.11 nm.
F.01 Acquisition of new practical knowledge, information and skills
A 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. 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.
F.01 Acquisition of new practical knowledge, information and skills