multiplexing (OTDM). For photonic routing, targets are related to the feasibility of
10-Tbps routers and network architectures appropriate to a Tb-class wavelength-
routed optical network. The current program seeks to understand how this optical
platform can support new bandwidth, demanding applications such as grid com-
puting, and real-ti me applications like video, digital cinema, and network storage.
Key targets include 160 Gbps multilevel transmission systems, using DQPSK/
QAM, etc. aiming at bandwidth utilization of more than 2 bits/Hz by 2010.
In the USA funding for research (nonindustrial) is through the National Science
Foundation and for large projects often through DARPA. Current major photonic
activities include studies on optical code ...