基于可调谐光频梳的可扩展且具有成本效益的多用户正交频分复用无源光网络，具有免光源光网络单元。

Tunable optical frequency comb enabled scalable and cost-effective multiuser orthogonal frequency-division multiple access passive optical network with source-free optical network units.

机构信息

Key Laboratory of Optical Fiber Sensing and Communication Networks (Ministry of Education), and School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.

出版信息

Opt Lett. 2012 Oct 1;37(19):3954-6. doi: 10.1364/OL.37.003954.

DOI:10.1364/OL.37.003954

PMID:23027243

Abstract

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.

摘要

我们提出并实验演示了一种基于可调谐光频梳产生技术的免光源光网络单元（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 驱动信号的峰峰值电压，可以产生可调谐光频梳源。该源可用于辅助配置多免光源增强型 OFDMA-PON，从而可以有效地支持单个波长上的同时且无干扰的多用户上行传输。所提出的多用户 OFDMA-PON 具有可扩展性和成本效益，并通过实验成功验证了其可行性。