—Multiwavelength optical messages encoded in a bit-parallel fashion are successfully routed through five switching nodes of a 12-port optical packet switching interconnection network. The data payloads are entirely recovered and processed at the destination node using an embedded clock signal with a measured clock-to-data skew tolerance window of 150 ps.
This paper describes two research projects that develop new low-cost techniques for testing devices with multiple high-speed (2 to 5 Gbps) signals. Each project uses commercially available components to keep costs low, yet achieves performance characteristics comparable to (and in some ways exceeding) more expensive ATE. A common CMOS FPGA-based logic core… (More)
We experimentally demonstrate end-to-end memory transactions between a processor and memory node across the data vortex optical packet switch. Successful read and write transactions via the network at 4×2.5 Gb/s are verified.
This paper presents the design and performance characteristics of a system designed to interface between a PCI Express port and an optical packet switched network as well as provide inline test capability for the whole system. A single lane of PCI Express traffic is inverse multiplexed across eight parallel channels and retransmitted in a burst packet at… (More)
nic nic nic nic nic nic nic nic tx tx tx tx rx rx rx rx The Data Vortex topology relies on a banyan-like addressing structure while incorporating a unique deflection routing scheme as an internalized buffering mechanism, making it ideal for realization with photonic devices. The implemented 12×12 system is of size (C,H,A) = (3,4,3), and the simulations… (More)
Background. The treatment of pancreatic cancer and other periampullary neoplasms is complex and challenging. Major high-volume cancer centers can provide excellent multidisciplinary care of these patients but almost two-thirds of pancreatic cancer patients are treated at low volume centers. There is very little published data from low volume community… (More)