Worldwide dense wavelength division multiplexing (DWDM) equipment market revenues grew 19 percent last year to $7.3 billion, with North America accounting for the highest dollar amount during the year. 

According to the Dell’Oro Group, the combined market for 40 Gbps and 100 Gbps DWDM wavelengths grew more than 60 percent, contributing nearly one-third of the 2011 market revenues.

Comments Jimmy Yu, vice president/Optical Transport research at Dell’Oro Group, “Demand for 40 and 100 Gbps transmission is driving DWDM sales to new highs. The total DWDM market, which includes both metro and long-haul applications, will likely maintain strong growth in 2012. 

He adds, “We believe the total DWDM market is on a path to surpass the revenue levels reached back in 2000, when the DWDM market peaked at $7.7 billion. We’re forecasting the total DWDM market to reach $8 billion in 2012.”

The equipment manufacturers with the highest DWDM revenue share last year were Huawei, Ciena and Alcatel-Lucent.

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