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For Optical Fiber, More Bandwidth Looms

Photonics Spectra
Mar 2017
Engineering improvements to fiber, as well as enhancements to detectors and sources, aim to improve capacity for long-haul networks and data centers.

HANK HOGAN, CONTRIBUTING EDITOR, hank.hogan@photonics.com

The world’s data travels largely by fiber, with more being moved than ever before. San Jose, Calif.-based networking giant Cisco Systems forecasts that data traffic will grow 22 percent a year from 2015 to 2020. Little wonder, then, that more fiber is going in the ground, under the sea and into data centers. This year the optical fiber installed in communication networks globally will total 421 million kilometers, said Richard Mack, principal analyst with market research firm CRU

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GLOSSARY
optical fiber
A thin filament of drawn or extruded glass or plastic having a central core and a cladding of lower index material to promote total internal reflection (TIR). It may be used singly to transmit pulsed optical signals (communications fiber) or in bundles to transmit light or images.  
fiber opticsoptical fiberHank HoganCiscoCRU InternationalCorningglass fiberFinisarROADMmultiplexerRam PhotonicsInfineraFeatures

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