A novel optical buffer configuration for unslotted-asynchronous optical packet switching

This paper addresses the problem of configuring fiber delay lines (FDL) for optical buffers in an unslotted and asynchronous optical network. Given the restrictions on FDL number, by enhancing the proportion of small granularity FDL in the FDL group advisably, it can build more efficient FDL buffers with better performances, including the packet loss probability, mean delay time and throughput. This buffer configuration can be applied to optimize the switch in the practical project.