Chapter 3: Preform manufacture and fiber drawing. Production of silica glass through deposition. Melting of ultrapure glass with furnace heated by radio frequency (RF) induction. Flowchart of the production of ultrapure silicon dioxide from natural quartz or quartz mineral sands.
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Production of silica glass through deposition
Melting of ultrapure glass with furnace heated by radio frequency (RF) induction.
MCVD – deposition at Acreo Fiber Lab in Hudiksvall Sweden.
The MCVD – process.
Intense heating causes the hollow preform to soften and collapse to a solid rod.
Process description: phase 1 - deposition
The OVD method for making a preform.
The porous preform is collapsed into a solid glass rod.
Schematic diagram showing the VAD method of preform manufacture.
Fiber drawing – principle drawing.
Fiber drawing - top of the tower.
Typical primary coated single-mode fiber.