Performance evaluation of a single mode-multi mode cost efficient fiber link used for 4/16/64 QAM gigabit OFDM MMW transmission using different MZM modulation schemes

2017 2nd International Conference for Convergence in Technology (I2CT) Pub Date : 2017-04-01 DOI:10.1109/I2CT.2017.8226185

Dhananjay Patel, V. Singh, U. Dalal

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Abstract

Chromatic dispersion in single mode fibers (SMF) and Inter-Modal Delay Dispersion (IMDD) in multimode fibers (MMF) severely limits the transmission link distance. With data rates approaching 10Gb/s, the transmission distance of MMF is limited up to few meters. In this paper, we simulate a simple and cost effective Passive Optical Network (PON) by combining SMF-MMF Radio over Fiber (RoF) link using central launching technique at 1550nm. The system targets the transmission of 2 & 5Gb/s Optical Orthogonal Frequency Division Multiplexing (OFDM) with 4/16/64 QAM modulation formats over already installed MMF. The optical up-conversion of millimeter wave is performed by Mach Zehnder Modulator (MZM) using different modulation schemes. The performance limitation imposed by chromatic and intermodal dispersion due to coupling of SMF-MMF (over 20kms and upto 1km respectively) is analysed by varying the modulation formats of QAM-OFDM along with different MZM upconversion techniques.

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采用不同MZM调制方案的64年4月16日QAM千兆OFDM毫米波传输单模-多模低成本光纤链路的性能评估

单模光纤中的色散和多模光纤中的模间延迟色散严重限制了传输链路的距离。当数据速率接近10Gb/s时，MMF的传输距离被限制在几米以内。在本文中，我们模拟了一个简单且经济有效的无源光网络(PON)，通过使用1550nm的中心发射技术结合SMF-MMF光纤无线电(RoF)链路。该系统的目标是在已经安装的MMF上传输4/16/64 QAM调制格式的2和5Gb/s光正交频分复用(OFDM)。利用马赫曾德尔调制器(MZM)采用不同的调制方案实现毫米波的光上转换。通过改变QAM-OFDM的调制格式以及不同的MZM上转换技术，分析了SMF-MMF耦合(分别超过20km和不超过1km)所造成的色散和多模态色散对性能的限制。

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2017 2nd International Conference for Convergence in Technology (I2CT)

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