Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Opto-Electronics Review

1 2009

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: solid states

Sortuj według:

Ogranicz wyniki do:

Preparation and characterization of transparent Nd:YAG ceramics

Librant Z., Jabczyński J. K., Węglarz H., Wajler A., Tomaszewski H., Łukasiewicz T., Żendzian W., Kwiatkowski J.

Opto-Electronics Review

2009

Vol. 17, No. 1

72-77

Transparent Nd:YAG ceramics were produced by solid.state reaction of high.purity (4N) nanometric oxides powders, i.e., Al₂₃O₃, Y₂₃O₃ and Nd₂₃O₃. After sintering, mean grain sizes of 2% Nd:YAG samples were about 20 µm and their transparency were a bit worse than that of 0.9% Nd:YAG single crystal. Two types of active elements: rods and slabs were fabricated and characterized in several diode pumping schemes. In end pumping configuration as a pump source 20.W fiber coupled laser diode operating in low duty cycle regime (1 ms pump duration/20 Hz) was deployed. In the best case, 3.7 W of output power for 18 W of absorbed pump power, M ² < 1.4 were demonstrated for uncoated ceramics Nd:YAG rod of Φ 4×3mm size in preliminary experiments. For the ceramics of two times lower Nd dopant level above 30% slope efficiency was achieved. In case of Nd:YAG ceramic slab side pumped by 600.W laser diode stack above 12 W was demonstrated with slope efficiency of 3.5%.