Lightwave
February 2010
Volume 27, Issue 2
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Lightwave — February 2010

Applications

Real-time corrective action for mobile bandwidth hogs

By Greg S. Gum Overview Traffic management has become a major concern for mobile networks as bandwidth-intensive data transfer increases. A new class of network terminating equipment can help...

Industry

Measuring complex optical modulation in fiber

By Daniel van der Weide Overview This article reviews both sampling and real-time techniques for signal conversion, compares many of the current instruments for measurement of complex...

Characterizing advanced modulation formats using optical sampling

By François Robitaille Overview The shift to more complex modulation formats for high-speed communications means a change in the way designers and network managers measure signal...

Technology

Ethernet protection switching and OAM move from proprietary to standardized

By Morteza Ghodrat Overview In order to mirror SONET/SDH networks, Carrier Ethernet vendors developed proprietary means of providing protection switching and OAM. A new series of standards...

Tech Trends

40G makes inroads undersea

By Meghan Fuller Hanna Overview Estimates that the undersea equipment market will exceed $2 billion over the next five years have piqued the interest of traditional terrestrial system vendors...

Up Front

Editorial

So far, so good

The U.S. Department of Commerce’s National Telecommunications and Information Administration and the Department of Agriculture’s Rural Utilities Service (RUS) have finally begun to dole...