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[en] The synthesis conditions of fluoride ZBLAN type glasses doped with 1 or 2 weight % of Nd3+, Er3+, Pr3+ ions have been presented in this paper. Glasses were melted in special clean 'glove box' type chamber, constructed and built in ITME, in controlled atmosphere of clean and dry nitrogen. Synthesized glasses are characterized with a good homogeneity, high degree of clarifying and with negligible tendency to crystallization in softening temperatures. Investigations of spectral properties, luminescence and lifetime of active ions of excited level in select samples of glasses doped with rare earth ions have ben showed their usefulness to laser uses: λ=0.92 μm (Pr3+); 1.06; 1.35 μm (Nd3+); 1.55 μm (Er3+). (author)
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Komitet Elektroniki i Telekomunikacji PAN (Poland); Politechnika Szczecinska (Poland); Politechnika Warszawska (Poland); Wojskowa Akademia Techniczna (Poland); Polski Komitet Optoelektroniki, SEP (Poland); Polska Sekcja SPIE (Poland); 461 p; ISBN 83-87423-38-6; 
; 1999; p. 44-48; 6. Symposium of Laser Technique; 6. Sympozjum Techniki Laserowej; Szczecin-Swinoujscie (Poland); 27 Sep - 1 Oct 1999; KBN GRANT NO. PBZ-023-10; Available at Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (PL); 5 refs, 4 figs, 1 tab.
; 1999; p. 44-48; 6. Symposium of Laser Technique; 6. Sympozjum Techniki Laserowej; Szczecin-Swinoujscie (Poland); 27 Sep - 1 Oct 1999; KBN GRANT NO. PBZ-023-10; Available at Institute of Electronic Materials Technology, Wolczynska 133, 01-919 Warsaw (PL); 5 refs, 4 figs, 1 tab.