A Low-power Low-cost Optical Router for Optical Networks-on-Chip in Multiprocessor Systems-on-Chip

Universal method for designing non-blocking multicast-supported on chip optical router

“…We analyzed and compared the router we proposed in section 3 with previously reported optical routers including λ-router, optimized crossbar router, traditional crossbar router and Cygnus [6] and the router in [10]. The number of MRs used by an optical router will decide its area and cost.…”

“…Fully ONoC with passive routing algorithm has been proposed as the trend of future NoC [2]. Most of the previously reported optical routers [3,4,5,6,7] use only one of the resonant wavelengths of the MRs and cannot support non-blocking multicast communication. Some universal designing methods that use MRs as building blocks have been proposed [8,9], but the topology of the routers they generalized uses large number of MRs and gets low utilization.…”

3-D Mesh-Based Optical Network-on-Chip for Multiprocessor System-on-Chip

“…Experiment results show that the MR on-off switching power consumption is on the order of 20 μW [21]. Based on the switching functions of MRs, several 5×5 optical routers have been proposed for routings in mesh or torus-based ONoCs [22]- [25]. Cygnus is a low-power nonblocking 5 × 5 optical router [22].…”

Five-Port Optical Router Based on Microring Switches for Photonic Networks-on-Chip

“…Compared with the previously reported in [11], the optical router is designed to passively route the optical signal travelling in one direction. The passive routing property guarantees that the maximum power consumption to guide the signal through a mesh network is a constant independent of the network size while using XY dimension-order routing [13]. In addition, the optical router has fewer waveguide crossings by employing more parallel coupled MRRs.…”