SEPTEMBER/OCTOBER 2013 VOLUME 30 NO. 5 WWW.LIGHTWAVEONLINE.COM

OPTICAL TECHNOLOGIES,
COMMUNICATIONS
APPLICATIONS, AND INDUSTRY
ANALYSIS WORLDWIDE ®

There’s

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.