A Design of 4-Port and 8-Wavelength Optical Burst Switching Network

An experiment of 4-port and 8-wavelength optical burst switching(OBS) network is designed.The experimental system includes one core switching node,four edge nodes and dense wavelength divide multiplexing(DWDM) transmission systems.In transmission systems,burst packets(BPs) over burst packets optical wavelength channels choose 1 550 nm band,and burst header packet(BHPs) over control optical wavelength channel use 1 310 nm band.At OBS core switching node,a switching matrix is made from eight 4×4 optical switches.At the same time,the fiber delay line(FDL) buffers are applied to the core node to solve the traffic congestion of the OBS network.The experimental results prove that the design is successful,and the FDL can help reduce to the packets-loss-ratio of the core node.