Design and experimental demonstration of a synchronous OCDMA-based 10 Gbit/s/1.25 Gbit/s EPON with a novel synchronization scheme
Journal
Journal of Optical Communications
Journal Volume
29
Journal Issue
2
Pages
112-117
Date Issued
2008
Author(s)
Abstract
In recent years Ethernet passive optical network (EPON) which merges the low-cost fiber infrastructure and Ethernet equipment has attracted a lot of attention. It appears to be a very promising candidate of next generation access networks. In this paper, we describe the design and implementation of a synchronous optical code-division multiple-access (SOCDMA) based EPON communication system using perfect difference codes (PDC). We propose a novel upstream synchronization scheme to achieve the synchronization between the optical line terminal (OLT) and the optical network units (ONUs). An experimental environment is setup and main circuits of the OLT and ONU are implemented in field-programmable gate array (FPGA). The function of whoïe system is verified with line rate of upstream at 1.25 Gbit/s and downstream at 10 Gbit/s and system synchronization with resolution and accuracy of around 100ps is achieved.
Other Subjects
Ethernet; Field programmable gate arrays (FPGA); Integrated circuit design; Next generation networks; Optical communication; Passive optical networks; Synchronization; Design and implementations; Ethernet passive optical networks; Experimental demonstrations; Experimental environment; Next generation access networks; Optical code division multiple access; Optical line terminals; System synchronization; Code division multiple access
Type
journal article