SEPTEMBER/OCTOBER 2013 VOLUME 30 NO. 5
WWW.LIGHTWAVEONLINE.COM
OPTICAL TECHNOLOGIES,
COMMUNICATIONS
APPLICATIONS, AND INDUSTRY
ANALYSIS WORLDWIDE ®
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MORE INFO online
3 EDITORIAL /// Running
the gauntlet
By STEPHEN HARDY
5 INTERVIEW /// Verizon’s
Wellbrock talks
metro 100G, 200G
Glenn Wellbrock, director of optical
transport networks, on Verizon’s
100G metro experiences and
future plans as well as its recent
trials of 200-Gbps technology.
13 Is 1-Gbps FTTH the gold
standard or just gold-plated?
A growing number of service
providers and government
initiatives have targeted 1-Gbps
broadband services. But given
the needs of most residential
users, are such services more
emblematic than useful?
By STEPHEN HARDY
17 Which optical modulation
scheme best fits
my application?
Not all complex modulation
schemes are created equal.
The right choice is key to a
successful system design.
By STEPHANIE MICHEL
Ethernet’s next 10X leap
BY JOHN D’AMBROSIA,
Ethernet Alliance
It now appears that Ethernet
has abandoned its 10X
increment legacy in favor of
a 4X increment, leading to considerable
speculation by some regarding the
future trajectory of Ethernet. A look
back at Ethernet’s rate progression
will provide some useful insight.
The color of SDN:
Photonic dimensions
to software-defined
networking intelligence
BY UWE FISCHER, Coriant
Initial interest in software-defined
networking (SDN) has centered on
specific-use cases, particularly high-capacity data-center networks. As
carriers look beyond such initial
implementations to the practical
application of SDN principles in the
wide area, and more specifically
end-to-end, optical-based service
infrastructure, a new set of challenges
– and opportunities – come to light.
Summer at the Speed
of Light: 100G
BY LIGHTWAVE STAFF
Summer is gone, but you can still warm
up to the latest information on 100-Gbps
technology and applications. Catch
up on all our podcasts, video chats,
webcasts, feature articles, and more
as we look at what’s new and what’s
upcoming on both the line
side and client side of 100G.
By DAVID MAZZARESE
The development of
200-µm coated fibers
opens the door for
more efficient network
deployments.
PAGE 7
New Cable Designs
avert conduit
congestion