Abstract
Continuous-wave Tm:YLF laser with two slab crystals was double end pumped by four fiber-coupled laser diodes at room temperature. A maximum continuous wave output power of 108 W for the slab Tm:YLF laser was generated, corresponding to a slope efficiency of 39.0 % and an optical-to-optical conversion efficiency of 35.5 % with respect to the incident pump power. The laser operated at 1,908.1 nm with a beam quality factor of M2 ~ 2.9 at the highest output power.
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