EoW July 2013

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News
Corporate
july 2013 13
DesIGNer and manufacturer of fibre optic network products, OFs, has
introduced TeraWave™ ULa ocean fibre, a new single-mode fibre designed for
100Gbs coherent transport in submarine systems for distances up to 12,000km.
TeraWave ULa fibre is designed to provide a unique combination of
the industry’s largest effective area, excellent cabling performance and
significantly reduced attenuation for reliable coherent transmission at 100Gbs
over trans-oceanic distances. Used in shorter length applications, the fibre is
said to provide even better non-linearity performance for increased spectral
efficiency.
OFs manufactures TeraWave ULa fibre using proprietary processes to produce
fibre with low water peak (LWP) performance and ultra-low polarisation mode
dispersion (PMD).
The new fibre is optimised for ultra-long haul networks that use advanced
modulation formats and coherent detection, such as transoceanic networks
where extreme distances between shore end terminals limit the per-channel
launch power in dense wavelength division multiplexing (DWDM)
transmission.
compared to earlier generations of submarine fibres, TeraWave ULa fibre
reduces the performance limitations introduced by fibre non-linearities,
thereby supporting higher spectral efficiency and lower repeater spacing.
applications without repeaters, such as coastal festoons and deep water
crossings, can also take advantage of the large effective area of TeraWave sLa
ocean fibre, which permits higher power handling capacity without additional
distortion, meaning more channels at higher speeds over longer distances
before amplification is required.
OFS – USA Website:
New single-mode fibre for 12,000km Keeping rolling. . .
company founder FG Theis started production of
flat wire and profiles more than 100 years ago.
Now the company rolls in thicknesses of
0.15-5mm and in widths ranging from 1mm to
50mm in all grades and qualities.
The company’s highly precise and varied flat
wires include narrow steel strips and complete
profiles. These have stringent tolerances, seamless
edge shapes, linear straightness and absolute
flatness. These properties are achieved though
sophisticated calibration coordination and precise
shaping inmulti-roller profile rolling plants.
all types of edges can be provided, including
natural edges, cut, rolled or chased edges.
special edges can also be manufactured to meet
customers’technical drawings.
complete profiles are manufactured on different
tandem rolling mills for profiles, using round wire
or pre-split steel strip. The company’s own tool
making plays a large part here, guaranteeing
precise profile shaping with the narrowest of radii
and angles.
Friedr. GustavTheis Kaltwalzwerke GmbH –
Germany
Website: