2004/01/01 by Jonghoon Yi, Hee-Jong Moon, Jongmin Lee +1
Arts and Humanities · #German Literature and Culture Studies #Historical, Literary, and Cultural Studies
paper · doi:10.1364/ao.43.003732
We developed a diode-pumped high-average-power Nd:YAG green laser. By use of a monolithic diffusive reflector having three slits and a rod with low doping concentration, uniform distribution of excited Nd ions could be achieved. Uniform distribution in the rod reduced thermal birefringence. We employed a Z-shaped cavity to have a constant beam size at the frequency-doubling crystal independent of thermal lensing in the rod. The pulse width and green power dependence on the pump power were analyzed. A maximum green power of 101 W was obtained when the total pump power was 398 W. The optical-to-optical conversion efficiency was as high as 25.4%.