ROADM shipments suffered during the macroeconomic crisis, but now on track for growth Wavelength blocker is the legacy ROADM switch fabric — still shipping although likely to be discontinued WSS-based ROADMs continue to lead the market Demand for 1x9 is the largest No 1xN ROADMs shipped where N>9 50GHz growing, represents ~25% of WSS ROADMs shipped in the past year 1x2 WSS ~5% of market by unit volume with flat historical growth PLC mux switch has significant volumes, second only to WSS volumes, but slated to be challenged by the newer 1x2 WSS
