P. Koopmann

Efficient high-power Ho:YAG laser directly in-band pumped by a GaSb-based laser diode stack at 1.9 μm

Samir Lamrini, P. Koopmann, Michael Schäfer et al. · Applied Physics B · 2011 · 91 citations

Optical Pumping, Photonics, Engineering +10

Efficient diode-pumped laser operation of Tm:Lu_2O_3 around 2 μm

P. Koopmann, Samir Lamrini, K. Scholle et al. · Optics Letters · 2011 · 85 citations

Optical Pumping, Photonics, Room Temperature +12

175 fs Tm:Lu_2O_3 laser at 207 µm mode-locked using single-walled carbon nanotubes

Andreas Schmidt, P. Koopmann, G. Hüber et al. · Optics Express · 2012 · 83 citations · Full text

Fs Tm, Photonics, Mode-locked Lasers +12

Crystal growth, spectroscopy, and highly efficient laser operation of thulium-doped Lu2O3 around 2 μm

P. Koopmann, R. Peters, K. Petermann et al. · Applied Physics B · 2011 · 63 citations

Materials Science, Engineering, Optical Properties +6

Directly diode-pumped high-energy Ho:YAG oscillator

Samir Lamrini, P. Koopmann, Michael Schäfer et al. · Optics Letters · 2012 · 60 citations