fiber optic cable detailing the core and cladding of the cable

“If you look very carefully in the middle, can you see a different sort of color?” Mazzali asked me. I looked and saw a very narrow, thin band of something-ness in nothing-ness. “That’s the core,” Mazzali said. “That’s where the light will be.”

Maurer’s team had decided that the way to make glass transmit light most effectively was, somewhat paradoxically, to make the core less pure than the cladding so that the latter would act as a mirror, trapping light inside the core. So chemicals were mixed into the core—through the tweaking of the soot layering—that did that. “You put a light in that core,” Mazzali said, “and it keeps reflecting back and forth.”
google fiber technician salary
Image render of a fiber optic cable detailing the core and cladding of the cable. The text core and cladding are...
The light signals are transmitted through the core of the fiber. The cladding layer keeps the light from escaping.CORNING

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