With calculated EMB, SR 10G is guaranteed

摘要

More than ever, higher bandwidth and faster throughput are critical to business operations. IT managers have already adopted 10-Gbit/ sec-capable networks for LAN backbone bandwidth aggregation and data-center applications. It is estimated that a majority of campus backbone networks will operate at 10 Gbits/sec in the next five years. Both American and international standards now exist to define specifications for 10 - Gbit/ sec systems. Short-reach (SR) systems (300 m or less) take advantage of low-cost 10-Gbit/ sec VCSELs and the high-bandwidth capacity of 50-μm multimode fiber (MMF) at 850 nm. Calculated effective modal bandwidth (EMBc) is a new bandwidth metric that provides several advantages in assuming robust 10 Gbit/sec transmission performance in these SR applications.