Ytterbium-Phosphate Glass for Microstructured Fiber Laser

Materials

Ryszard Stępień¹  Mariusz Klimczak¹  Ryszard Buczyński¹  Ireneusz Kujawa¹  Dariusz Pysz¹  Marcin Franczyk¹ 

[1] Institute of Electronic Materials Technology, 133 Wolczynska Str., 01-919 Warsaw, Poland;

关键词: phosphate glass;    ytterbium oxide;    glass melting;    glass properties measurements;    photonic crystal fiber (PCF);    fiber laser;   

DOI  :  10.3390/ma7064723

来源: DOAJ

【 摘 要 】

In the paper, we report on the development of a synthesis and melting method of phosphate glasses designed for active microstructured fiber manufacturing. Non-doped glass synthesized in a P2O5-Al2O3-BaO-ZnO-MgO-Na2O oxide system served as the matrix material; meanwhile, the glass was doped with 6 mol% (18 wt%) of Yb2O3, as fiber core. The glasses were well-fitted in relation to optical (refractive index) and thermal proprieties (thermal expansion coefficient, rheology). The fiber with the Yb3+-doped core, with a wide internal photonic microstructure for a laser pump, as well as with a high relative hole size in the photonic outer air-cladding, was produced. The laser built on the basis of this fiber enabled achieving 8.07 W of output power with 20.5% slope efficiency against the launched pump power, in single-mode operation M2 = 1.59, from a 53 cm-long cavity.

【 授权许可】

Unknown