Rare-earth doped gain fibers

摘要

Rare earth oxides doped multicomponent glass fibers for laser generation and amplification, including a core and a cladding, the core comprising at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, K2O, Na2O, Li2O, Y2O3, or combinations; wherein the mode of the core is guided with step index difference between the core and the cladding, a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 25 to 120 micron, and a length of the gain fiber is shorter than 60 cm.

主权项

1. A Ytterbium doped multicomponent glass fiber for laser generation and amplification from 1.01 to 1.12 micron wavelength, comprising:
a core; and a cladding; wherein said core comprises: at least 2 weight percent glass network modifier selected from BaO, CaO, MgO, ZnO, PbO, K2O, Na2O, Li2O, Y2O3, or combinations; and ytterbium oxide at a level from about 3 to about 50 weight percent; wherein: the mode of the core is guided with step index difference between the core and the cladding; a numerical aperture of the fiber is between 0.01 and 0.04; core diameter is from 25 to 60 micron; and a length of the gain fiber is shorter than 60 cm.