Kracht, D.Sayınç, H.Yılmaz, Saniye SinemWysmolek, M.Hausmann, K.Ottenhues, C.Wandt, D.Wienke, A.Neumann, J.2018-04-122018-04-1220161875-3884http://hdl.handle.net/11693/37498Date of Conference: 19-22 September 2016Conference Name: Laser Assisted Net Shape Engineering 9 International Conference on Photonic Technologies, LANE 2016We report on a variety of continuous wave and pulsed laser sources based on Thulium- and Holmium-doped materials, emitting in the spectral range around 2 μm. This includes continuous wave Thulium-doped fiber lasers which have been realized based on the beam combining technique by using tapered fused bundles and truly single mode WDM cascades, respectively. A pulsed laser source emitting nano- or picosecond pulses has been developed in a master oscillator power amplifier (MOPA) configuration, which consists of a gain-switched diode operating at a wavelength of 1.95 μm, followed by Thulium-doped fiber-based pre- and main amplifiers. Furthermore, we present a femtosecond regenerative amplifier system using Thulium:YAP and Holmium:YAG crystals with emission wavelengths around 1.95 μm and 2.1 μm, respectively. Output energies of more than 700 μJ have been generated with both systems.EnglishAll-fiber combiningPulsed fiber amplifiersRegenerative amplifiersThulium and Holmium doped solid state lasersOptical phase conjugationConference Paper10.1016/j.phpro.2016.08.125