wiredinUSA April 2014

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wiredInUSA - April 2014 89
AllWave One fiber provides reliable
performance, superior to ITU-T G.652.D
and G.657.A1 recommendations. With a
composition of high purity synthetic silica
throughout the core and cladding, the
fiber offers mechanical reliability and
stable low loss. OFS's patented ZWP
fiber manufacturing process eliminates
hydrogen-aging defects and provides a
50 percent increase in usable spectrum
compared to G.652.A and G.652.B fiber.
Long haul fiber
OFS’ TeraWave™ fiber is an improved
ITU-T G.654B large area single-mode
fiber designed for 100GB/s and 400GB/s
coherent transport in terrestrial long haul
systems. TeraWave fiber has been designed
to provide higher transmission speeds over
longer distances with more wavelengths,
reducing the need for signal regeneration.
TeraWave fiber offers a combination of
optimized effective area, high cabling
performance, and reduced attenuation
compared to conventional ITU-T G.652.D
single-mode fibers. With 50 percent of the
effective area of conventional G.652.D
fiber types, TeraWave reduces nonlinear
impairments for coherent transmission,
enabling the launch of higher signal power
for increased optical signal noise ratio
(OSNR).
David DiGiovanni, chief technology officer
of OFS, said: “The longer optical reach
enabled by TeraWave fiber means fewer
regeneration sites helping to save capital
cost, rack space in huts, and power
consumption. Furthermore, increased
capacity through higher spectral efficiency
has always been the driver of long haul
economics, and TeraWave fiber supports
this increase through optimized fiber
properties.
“Thisachievementwill have increasingvalue
as transmission technology approaches the
‘non-linear Shannon limit’. TeraWave fiber
increases the practical capacity of optical
fiber to better support future bandwidth
demands.”
Active optics platform technology
TE Connectivity (TE) has revealed its latest
development in fiber optics, its Coolbit
optical engines. This platform engine, which
converts data from electrical signals to
optical signals, will be thedriving technology
behind TE's 100G, 300G and 400G active
optics.
During 2014, TE will bring four active optics
products to market that will include Coolbit
optical engine platform: 100G QSFP28
active optical cables (AOCs); 100G QSFP28
transceivers; 300G mid-board optical
modules; and 400G CDFP AOCs.
TE’s latest 25G active optics are designed to
help to achieve the cooling at component
level that is so important as data center
energy consumption concerns rise, along
with the need for more data.
Power consumption is low, with QSFP28
modules performing at less than 1.5 watts
per transceiver. At component level alone,