100G wavelengths would be required in volume in the 2012 timeframe, primarily in long haul applications, moving subsequently to regional and metro networks.
100GbE ports on routers will instigate an early adoption phase of 100G optical transport in the late 2009/2010 timeframe. Yet service providers are caught between the physical and economic realities of moving into100Gbps transmission.
Service providers deploying a Nortel 40G coherent solution can evolve their networks to add 100Gbps wavelengths as soon as their business dictates, deploying 100Gbps on their existing network with similar transmission attributes as those currently allowed today. This ability is made possible by exploiting linear coherent receiver characteristics.