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Scientific
Atlanta has announced a new CWDM (Coarse Wave Division Multiplexing)
optical transport system. This expands the capacity of the
reverse path bandwidth by enabling each fiber to support
an eight-fold increase in the number of wavelengths it can
deliver.
As
cable operators launch more interactive services and expand
Internet access through the deployment of high-speed broadband
cable modems, reverse path bandwidth capacity can lead to
a traffic bottleneck according to an official release.
Boosting
the capacity of existing fiber helps to push fiber deeper
toward cable customers, maximising bandwidth to support
critical operational needs. Integrating the CWDM optical
transport platform into an existing fiber network quickly
delivers the essential reverse path bandwidth to reduce
the time to market for delivering expanded interactive services.
By shortening the time it takes to make the bandwidth available
and eliminating the need to purchase and install additional
fiber, the Scientific-Atlantaź CWDM platform delivers service,
operational and economic benefits for cable operators.
The
new Scientific-Atlanta CWDM system enables cable operators
to incorporate cost-effective reverse signal transport by
taking advantage of advancements in optical filtering. This
filtering technology makes it possible for the combined
(up to eight) wavelengths in one fiber to be separated at
a cable hub or headend for efficient traffic management.
The CWDM system provides a rapid solution to the reverse
fiber bottleneck problem and is a cost-efficient alternative
to DWDM for short-to-medium distances.
In
addition to eliminating the cost of installing additional
cable, the new system also helps control operational costs
by using wide channel spacing, which allows the use of uncooled
DFB lasers. This drives down the cost of the system's components
and also reduces power consumption significantly to deliver
additional cost-effective benefits to cable operators. The
scalable solution is especially effective when deployed
in fiber-poor areas and complements the company's popular
high-performance reverse receivers and compact nodes to
deliver a total reverse path system.
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