Verizon/Nortel: 100G Trial Demos Improved Distortion Tolerance

Verizon and Nortel say they have successfully completed a trial meant to demonstrate
that 100 Gigabit optical transmission technology better tolerates signal distortion than
the standard 10G wavelength.

In an announcement, Verizon said the trial involved a 73 kilometer stretch of field
fiber in northeastern Texas. According to Verizon, Nortel’s Optical Multiservice Edge
6500 convergence platform, which supports 40G and 100G networking, managed a rate of 92
Gbps. Verizon said the Nortel platform includes technology
designed to “maintain signal integrity despite significant polarization mode dispersion
(PMD),” which causes signals transmitted over optical fiber to distort in transit.
Significant amounts of PMD cause limits in the amount of data that can be sent over an
optical link.

Verizon has performed a number of 100G trials with partners besides Nortel. The
company says it set a distance record with Nokia Siemens Networks in which data was
successfully transmitted at 100G on a single wavelength for more than 1,040 kilometers.
In November of of 2007, the company partnered with Alcatel-Lucent to transmit a FiOS
video stream between Tampa and Miami, Florida at 100G over a live network.

The IEEE pegged 100 Gbps as the next target for Ethernet technology in late 2006.
After a year with the IEEE 802.3 Higher Speed Study Group, it became the
focus of a task force in December, 2007, when the IEEE established 802.3ba as the
designation for 40 and 100 Gigabit Ethernet communications.

Article courtesy of Optically Networked

Latest Articles

Follow Us On Social Media

Explore More