Patent FR2396981A1 successfully refreshed from Google Patents.
FR2396981A1
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Optical fibre mfr. - using fluoride glass compsns. contg. transition and/or rare earth metals
Assignee: Bpifrance Financement SA
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Filing: 1977-07-05
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Granted: —
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Expires: 1997-07-05
Abstract
Abstract Optical fibres in fluoride bearing glass is claimed in which the fluoride is ZrF4, BaF2, ThF4 and/or a rare earth fluoride. The glass may also contain fluorides of Ti, Nb, Ta, Mo or W to increase the relative concn. of ions which can effect polarisation of bonds. The m.pt. of these glasses are much lower than those traditionally used for making optical fibres. Transition metals can be safely used without detrimental effect on its properties, the glasses are stable in air at ambient temp. even when moist and have good transmission qualities.
Inventors
- 👤 Jacques Lucas
- 👤 Marcel Poulain
- 👤 Michel Xavier Passaret
- 👤 Francois Jean-Marie Haussonne
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 12:39
CPC Classifications
C; C03; C03C; C03C21/00; C03B; C03B37/00; C03B37/01; C03B37/012; C03B37/01265; C03B37/01268; C03C13/00; C03C13/04; C03C13/041; C03C13/042; C03C21/001; C03C25/00; C03C25/60; C03C25/601; C03C3/00; C03C3/32; C03C3/325; C03B2201/00; C03B2201/80; C03B2201/82
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