Efficient diode-pumped Tm:KYW 1.9-μm microchip laser with 1 W cw output power
Optics Express, Optical Society of America, 2014/22/10/11578-11582
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 TEM<sub>00</sub> 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%.
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