wiredInUSA April 2018

Low-noise fiber OFS has introduced TeraWave Scuba 125 optical fiber, designed to deliver performance for coherent transport submarine systems. The effective area is matched to terrestrial G.654.E fibers for performance from the ocean landing site to terrestrial networks. The fiber is said to offer excellent cabling performance in the C- and L-bands and world-class attenuation. The ultra-low attenuation enabled by a pure silica core and large effective area features of the TeraWave Scuba 125 fiber deliver improved margin beyond that needed for transmitting 100Gb per second over trans-Atlantic distances, across the C- and L-bands. The additional margin can be used to support more dense signal constellations than can be achieved with G.652 fibers for increased spectral efficiency. “The low noise and low non-linearity provided by TeraWave Scuba 125 fiber could be used to engineer a trans-Atlantic link with 8-QAM modulation, or alternatively a lower cost QPSK modulation system with fewer repeaters,” said Dr Robert Lingle Jr, director of systems and technology strategy at OFS. “Then you could extend the Scuba 125 fiber in standard terrestrial cable all the way into the inland data center.”

Scuba 125 fiber is manufactured using an OFS proprietary manufacturing process that produces a fiber with ultra-low polarization mode dispersion (PMD), an exceptional resistance to mechanical stress.

It is fully compliant with the ITU G.654.B, D and E standard for cut-off shifted fiber.

Rocket science? Corning Incorporated has announced its latest optical fiber cable development, RocketRibbon™ extreme-density cable. RocketRibbon cable is said to enable up to 30 percent faster installation than other high density ribbon cables designed for data center and carrier environments. RocketRibbon cable allows operators to quickly install more capacity in the same duct space to accommodate increased bandwidth demand, delivering up to 3,456 fibers in the same diameter as existing central and stranded tube cables. In addition to the improved fiber density, a unique ribbon design makes the fibers within RocketRibbon cable easy to manage, identify, and trace – all of which improve install times and lower ongoing maintenance costs.

RocketRibbon cables use a proprietary manufacturing process to create as many

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wiredInUSA - April 2018