Preparation and characterization of transparent Nd:YAG ceramics

• Autorzy: Librant Z. , Jabczyński J. K. , Węglarz H. , Wajler A. , Tomaszewski H. , Łukasiewicz T. , Żendzian W. , Kwiatkowski J.
• Języki publikacji: EN

Abstrakty

EN

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%.

Słowa kluczowe

EN

lasers; neodymium; solid states; optical ceramics

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2009
• Tom: Vol. 17, No. 1
• Strony: 72--77
• Opis fizyczny: Bibliogr. 36 poz.

Twórcy

autor

Librant Z.

autor

Jabczyński J. K.

• Institute of Electronic Materials Technology, 133 Wólczyńska Str., 01-908 Warsaw, Poland

autor

Węglarz H.

autor

Wajler A.

autor

Tomaszewski H.

autor

Łukasiewicz T.

autor

Żendzian W.

autor

Kwiatkowski J.

Bibliografia

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