Design And Simulation Of Silicon Based Microring Resonant Optical Router And Three-Dimensional Optical Interconnection Network

For multiprocessor system on chip,Optical Network-on-Chip(ONoC)has been widely concerned and researched due to that it can improve the bandwidth,reduce the delay and the power consumption,and it can solve the bottleneck problem of the conventional Electronic NoC effectively.Optical router is the most important component in ONoC,it affects the performance of the ONo C directly.Based on the theory of optical waveguide and the theory of microring resonator,two kinds of passive optical routers and two kinds of active optical routers are designed and optimized by using the advantages of microring resonator and polymer /SOI material.Based on the OPNET simulation platform,further research on the optical router in ONoC is carried out.A kind of 3D Mesh ONoC is built by using the active non-blocking five-port optical router,and its performance is studied preliminary.First,based on the polymer materials,the basic cross-coupling two-microring resonator and the parallel-coupling one microring resonator are designed and optimized.By using 24 groups of cross-coupling two-ring resonators,eight-port optical router which can route 7 channel wavelengths is proposed.In the range of 1548.4~1553.2 nm,under the selected 7 channel wavelengths with standard 0.8-nm spacing,the insertion losses of the eight-port optical router are within 0.02-0.58 dB,the maximum crosstalk is less than-39 dB,and the optical router's footprint size is about 0.79 mm2.In order to improve communication bandwidth of the eight-port optical router,a universal and novel N-stage cascaded eight-port optical router is presented,which can optically route 7N(N?43)channel wavelengths.In addition,in order to reduce the loss,a new passive parallel-coupling one microring resonator based four-port optical router is designed and optimized on the basis of the original research of our team,it can route three channel wavelengths and it is one of the four-port optical router which use the least number of the microring.Under the selected three channel wavelengths of 1550,1551.6 and 1553.2 nm,the insertion loss of the four-port optical router along all routing paths are within 0.02~0.6dB,the crosstalk is within-23.41~-37.71 dB.Second,based on silicon on insulator(SOI)platform,two kinds of thermo-optic tunable parallel-coupling one microring resonator with the 1550 nm resenance wavelength are designed,optimized and numerical simulated.Two active non-blocking four-port and five-port optical router were numerically proposed by using four and eight parallel-coupling one microring resonator respectively.Through the use of thermo-optic(TO)effect for tuning the resonance wavelength of each silicon switching element,the four-and five-port optical routers can be operated at 9 and 44 non-blocking routing states respectively.By establishing the theoretical model,the output spectrum,insertion loss,crosstalk and power consumption of the two optical routers are characterized in detail.According to the analysis on the data links of the two routers,we can get that the four-and five-port optical routers' insertion loss are within the range of 0.13~3.36 dB and 0.36~1.70 dB,the crosstalk are <-19.46 dB and <-20 dB,and the power consumption are within 0~88 mW and 44.2~154.8 mW respectively.Furthermore,in order to improve the performance of the two optical routers,three-ring-based MRRs are studied.Finally,in order to further study the application performance of the optical router,based on OPNET simulation platform and active non-blocking five-port optical router,a simplest 3D Mesh ONoC is constructed and simulated.The simulation results show that,when using XY dimension routing algorithm,the the power consumption and the loss of the routing path from the source node to the destination node are linearly changed with the number of nodes on the path.The innovation of this paper are:Firstly,based on the polymer material,a novel 8-port passive optical router is optimal designed by using cross-coupling two-ring resonators and numerical simulated,which can achieve the function that routing wideband multi-wavelength signals to the fixed-port.Secondly,based on the polymer material,a novel 4-port passive optical router which use the least microring and has the less insertion loss is optimal designed by using parallel-coupling one microring resonator.Thirdly,based on the silicon on insulator(SOI)platform,two novel kinds of parallel-coupling one microring resonators are designed.Then two active non-blocking four-port and five-port optical routers which have the new topology are numerically proposed and researched.