Design Of High-speed Optical Interconnection Routing Node And Network For Computer Cluster System

Optical interconnection technique is a kind of theory using photon wave-particle duality phenomenon to achieve the signal transmission and data exchange. By virtue of its high bandwidth, low loss and Electro Magnetic Interference (EMI) resistance, it has been widely adopted in high-performance special data link and has the potential of becoming an attractive alternative to electrical interconnection. Optical interconnection technique is a highly efficient method to achieve high-performance interconnection network. In this paper, a 8×8 routing node has been designed using a high-performance digital cross-point switch with the throughput of 10Gbit/s. The communication latency is only 235 ns. High-speed optical interconnection star network can be built up using this node. And the node can be extended using the circuits cascading Technology, which can realize 1.5T bit/s network throughput. The major achievements in this thesis: Ⅰ With optical interconnection technique and time division multiplexing(TDM) applied in clusters, a high-performance optical interconnection star network has been designed. Ⅱ A high speed routing node has been designed employing a high-performance digital cross-point switch. Architecture design of the routing node and division of the function modules have been accomplished. Meanwhile, schematic circuit diagram and printed circuit board design have been completed. Ⅲ With the internal logic design of Field Programmable Gate Arrays(FPGA) accomplished, the logic arbitration module performs the logic controlling function of the digital across point switch. Ⅳ With the signal generator and the high-frequency oscilloscope, the major adopted chips and PCB circuits have been tested. Based on those feasibility and stability tests, the PCB circuitry has been debugged successfully. Ⅴ Based on the star topology network, a two-layer star-ring combined network has been designed. To meet the need of large scale data switching, circuits cascading technique is used to expand the two-layer optical interconnection network. At last, performance of the two-layer network is analyzed. The major innovations of this thesis are: 1. A routing node has been designed with a high-performance digital cross-point switch. Consequently, a high bandwidth and low latency optical interconnection network has been realized with the optical interconnection technique. 2. The flexibility of FPGA logic control is adopted to achieve the dynamic configuration of the routing node. 3. Based on circuits cascading technique, the two-layer network can be expanded to meet the requirements of large-scale data communication.