Apparatus for manufacturing an optical fiber preform and including a ring for trapping and diffusing light radiation
AssigneeAlcatel
InventorsDidier Pezet, Gerard Lavanant
Life of this patent
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Abstract
The invention relates to apparatus for manufacturing an optical fiber preform from a tube of vitreous material, the apparatus comprising: means for holding said tube during manufacture of said preform; and heater means supplying said tube with the heat energy required for manufacturing said preform. According to the invention, diffuser means are disposed around at least one of the ends of said tube to trap and diffuse light radiation generated in said tube by said heater means. The invention also applies to apparatus for drawing an optical fiber from a preform.
Claims12
Apparatus for processing an elongate workpiece of optical vitreous material, the apparatus comprising:
- means for holding said workpiece during said processing;
- and
- heater means supplying said workpiece with heat energy required for said processing,
- wherein diffuser means are placed around at least one end of said workpiece to trap and diffuse light radiation generated in said workpiece by said heater means.
Dependencies are inferred from the claim text.