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首页> 外文期刊>Journal of Optical Communications >Design and Experimental Demonstration of a Synchronous OCDMA-Based 10 Gbit/s/1.25 Gbit/s EPON with a Novel Synchronization Scheme
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Design and Experimental Demonstration of a Synchronous OCDMA-Based 10 Gbit/s/1.25 Gbit/s EPON with a Novel Synchronization Scheme

机译：一种新颖的同步方案基于OCDMA的10 Gbit / s / 1.25 Gbit / s同步EPON的设计和实验演示

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摘要

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 whole 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.
机译：近年来，融合了低成本光纤基础设施和以太网设备的以太网无源光网络（EPON）引起了很多关注。它似乎是下一代接入网的非常有希望的候选者。在本文中，我们描述了使用完美差分码（PDC）的基于同步光码分多址（SOCDMA）的EPON通信系统的设计和实现。我们提出了一种新颖的上游同步方案，以实现光线路终端（OLT）和光网络单元（ONU）之间的同步。建立实验环境，并在现场可编程门阵列（FPGA）中实现OLT和ONU的主要电路。整个系统的功能通过上行链路速率为1.25 Gbit / s和下行链路速率为10 Gbit / s进行验证，并实现了分辨率和精度约为100ps的系统同步。

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