Patent ID: 6077799
Filing Date: 2000-06-20
Classification: C03C

Abstract:
A rare earth doped surface plasma chemical vapor deposition fluorine doped glass comprising: Component Weight Percent  SiO.sub.2 0-95 GeO.sub.2 0-95 Al.sub.2 O.sub.3 0-15 Ga.sub.2 O.sub.3 0-15 F 2-10 N 0-10 R.sub.2 O.sub.3 0.01-2.0  with a SiO.sub.2 +GeO.sub.2 range from 80-95 wt. %, an Al.sub.2 O.sub.3 +Ga.sub.2 O.sub.3 range from 5-15 wt. %, and R.sub.2 O.sub.3 is a rare earth oxide, wherein the fluorine doped glass is a high purity deposited dense glass in which volatile loss of fluorine is prevented.