Abstract
A vitreous As2S3 has been produced and characterized with the impurity content of ОН-groups 0.1-0.3 ppb wt, CO2 ~ 1 ppb
mole, SH-groups - 0.5-1 ppm mole, scattering centers with the diameter of ≤100 nm - <104 cm-3, and transition metals -
≤0.5 ppm wt. The optical fibers made from this glass have record low optical losses of 12 ± 2 dB/km at 3.0 μm and 14 ± 2
dB/km at 4.8 μm, the average bending strength of 0.52 GPa, and the numerical aperture of 0.21 at 1.55 μm.
Keywords
Chalcogenide glasses and fibers, High purity glass, Optical losses, As-S glasses.
Citation
G. Е. SNOPATIN, М. F. CHURBANOV, A. A PUSHKIN, V. V. GERASIMENKO, Е. М. DIANOV, V. G. PLOTNICHENKO, High purity arsenic-sulfide glasses and fibers with minimum attenuation of 12 dB/km, Optoelectronics and Advanced Materials - Rapid Communications, 3, 7, July 2009, pp.669-671 (2009).
Submitted at: May 19, 2009
Accepted at: July 20, 2009