Laser-assisted production of Bi-doped silica glasses

Near‐Infrared Broadband Photoluminescence of Bismuth‐Doped Zeolite‐Derived Silica Glass Prepared by SPS

“…Various kinds of glass hosts have been investigated so far, such as silicate, germanate, borate, phosphate, sulfide, fluoride, and chloride glasses. Particularly, silica glass is an attractive host material for the NIR emission of bismuth because it has excellent thermal and chemical stability and wide optical transmittance between the ultraviolet and infrared regions . In addition, it would be easier to merge together with the existing silica fiber networks.…”

“…Particularly, silica glass is an attractive host material for the NIR emission of bismuth because it has excellent thermal and chemical stability and wide optical transmittance between the ultraviolet and infrared regions. 1,30 In addition, it would be easier to merge together with the existing silica fiber networks. However, the traditional preparation process of pure silica glass requires very high temperatures (>1600°C) and long melting time, which makes that controlling the content of the bismuth in the silica glass is difficult, as bismuth oxide is a volatile material at high temperature.…”

Efficient methods of obtaining good optical properties in Yb-Bi co-doped phosphate glasses

“…The uorescence spectra of the glasses with different concentrations of Al 2 O 3 are very similar to the NIR luminescence in other Yb-Bi co-doped glass matrices, but the dependence of the NIR emission intensity on the Al 2 O 3 content is much stronger. [22][23][24] Finally, the increase of Al 2 O 3 content from 0 mol% to 9 mol% leads to efficient enhancement of the NIR luminescence intensity in Yb-Bi co-doped phosphate glasses.…”