This assembly is then surrounded by an inner jacket, aramid yarns for tensile strength, and finally, an outer protective sheath made from materials like polyethylene or corrugated steel armor. For instance, germanium is added to the core to increase the refractive index, allowing the light to be confined within it.
From Factory To Network Fiber: The Manufacturing Process
A precise flame heats the area where the gases meet, causing them to deposit microscopic particles of glass onto the inside of the tube. This buffered fiber, often called "bare fiber," is now strong enough to be handled during cable assembly.
The manufacturing process, known as chemical vapor deposition, builds the fiber layer by layer. The buffered fiber strands are laid up into a central tube or stranded around a strength member.
From Factory To Network Fiber: The Manufacturing Process
The final step is curing, where the coated fiber is passed through UV ovens to solidify the coating completely. The preform is mounted vertically in a tower oven, where it is heated to a temperature of approximately 2,000 degrees Celsius.
More About How fiber optic is made
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More perspective on How fiber optic is made can make the topic easier to follow by connecting earlier points with a few simple takeaways.
