IT1163787B - Glass optical waveguide fibre mfr - Google Patents
Glass optical waveguide fibre mfrInfo
- Publication number
- IT1163787B IT1163787B IT22078/83A IT2207883A IT1163787B IT 1163787 B IT1163787 B IT 1163787B IT 22078/83 A IT22078/83 A IT 22078/83A IT 2207883 A IT2207883 A IT 2207883A IT 1163787 B IT1163787 B IT 1163787B
- Authority
- IT
- Italy
- Prior art keywords
- blank
- make
- rod
- core
- cvd
- Prior art date
Links
Landscapes
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The fibre has a core, with a sheath possessing a lower refractive index (RI) than the max. RI of the core; and the fibre is drawn from a rod blank. To make the blank, CVD is used to make a loose core powder (a) known as white soot, which is shaped e.g. by pressing into a porous core blank rod (a). Rod (a) is then located on the axis of a mould. CVD is then used to make a sheath powder (b), which is fed into the mould and pressed onto rod(a) to make a blank (a,b), which is sintered to form a vitreous blank drawn into fibre. The powders (a,b) are pref. made by flame hydrolysis or in a reactor surrounded by a ring burner, resistance furnace or an h.f. induction coil or microwave generator for plasma-CVD. Blanks of high purity can be made.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22078/83A IT1163787B (en) | 1983-07-14 | 1983-07-14 | Glass optical waveguide fibre mfr |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT22078/83A IT1163787B (en) | 1983-07-14 | 1983-07-14 | Glass optical waveguide fibre mfr |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8322078A0 IT8322078A0 (en) | 1983-07-14 |
IT8322078A1 IT8322078A1 (en) | 1985-01-14 |
IT1163787B true IT1163787B (en) | 1987-04-08 |
Family
ID=11191146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT22078/83A IT1163787B (en) | 1983-07-14 | 1983-07-14 | Glass optical waveguide fibre mfr |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1163787B (en) |
-
1983
- 1983-07-14 IT IT22078/83A patent/IT1163787B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8322078A1 (en) | 1985-01-14 |
IT8322078A0 (en) | 1983-07-14 |
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