Tunable optical frequency comb enabled scalable and cost-effective multiuser orthogonal frequency-division multiple access passive optical network with source-free optical network units.
Tunable optical frequency comb enabled scalable and cost-effective multiuser orthogonal frequency-division multiple access passive optical network with source-free optical network units.
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DOI：
10.1364/ol.37.003954
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发表时间：
2012-10
期刊：
影响因子：
3.6
通讯作者：
Cheng Chen;Chongfu Zhang;Deming Liu;K. Qiu;Shuang Liu
中科院分区：
文献类型：
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作者：
Cheng Chen;Chongfu Zhang;Deming Liu;K. Qiu;Shuang Liu
提出并实验证明了一种采用可调谐光频梳产生技术的多用户无源光网络单元(ONU)的多用户正交频分多址无源光网络(OFDMA-PON)。通过级联相位调制器(PM)和强度调制器，并动态控制PM驱动信号的峰间电压，可以产生可调谐的光学频率梳状源。它被用来帮助配置多源无源ONU增强型OFDMA-PON，其中可以有效地支持在单个波长上同时且无干扰的多用户上行传输。提出的多用户OFDMA-PON具有良好的可扩展性和较高的性价比，并通过实验成功验证了其可行性。
We propose and experimentally demonstrate a multiuser orthogonal frequency-division multiple access passive optical network (OFDMA-PON) with source-free optical network units (ONUs), enabled by tunable optical frequency comb generation technology. By cascading a phase modulator (PM) and an intensity modulator and dynamically controlling the peak-to-peak voltage of a PM driven signal, a tunable optical frequency comb source can be generated. It is utilized to assist the configuration of a multiple source-free ONUs enhanced OFDMA-PON where simultaneous and interference-free multiuser upstream transmission over a single wavelength can be efficiently supported. The proposed multiuser OFDMA-PON is scalable and cost effective, and its feasibility is successfully verified by experiment.