Here’s some bits from Ovum-RHK Q1 ‘07 optical networking data analysis:

Year over year, ON market growth topped 20 percent for $12.3 billion annualized spending

"As predicted, the pause in spending in North America in the second half of 2006 ended in 1Q07, with strong spending gains in all product segments except legacy long-haul DWDM," said Dana Cooperson, vice president,

Ethernet and 10-Gbit/sec transmission continued to grow strongly, as did both metro WDM and next-gen multi-reach DWDM for network backbone applications.