Efficient diode-pumped Tm:KYW 1.9-μm microchip laser with 1 W cw output power
Gaponenko, M. Efficient diode-pumped Tm:KYW 1.9-m microchip laser with 1 W cw output power / M. Gaponenko, N. V. Kuleshov, T. Sudmeyer // Optics Express. - 2014. - Vol. 22, №10. - P. 11578-11582.
We report on a diode-pumped Tm:KYW microchip laser generating 1 W continuous-wave output power. The laser operates at a wavelength of 1.94 μm in the fundamental TEM00 mode with 71% slope efficiency relative to the absorbed pump radiation and 59% slope efficiency relative to the incident pump radiation. The optical-to-optical laser efficiency is 43%