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Analysis of thermally activated processes in bismuth-doped GeO<i/>
<sub>2</sub>-SiO<i/>
<sub>2</sub> glass fibers using the demarcation energy concept
Linkage of oxygen deficiency defects and rare earth concentrations in silica glass optical fiber probed by ultraviolet absorption and laser excitation spectroscopy
Formation of laser-active centers in bismuth-doped high-germania silica fibers by thermal treatment
The 5 references without a DOI — listed, not checked
no DOI — not checkedref7
no DOI — not checkedThe formation of optically active centers in silica glass during implantation of bismuth ion
no DOI — not checkedRegulation of bismuth valence in nano-porous silica glass for near infrared ultra-wideband optical amplification
no DOI — not checkedref17
no DOI — not checkedref20
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