Nonlinearity mitigation of multiband OFDM-RoF optical transmitter using feed-forward technique
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- 作者：Hyoung-Joon Park ; Sun-Young Jung ; Seung-Hyun Cho ; Jong-Hyun Lee and Sang-Kook Han
- 关键词：nonlinearity ; radio over fiber ; multiband OFDM ; feed-forward
- 刊名：Microwave and Optical Technology Letters
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：58
- 期：5
- 页码：1236-1240
- 全文大小：461K
- ISSN：1098-2760
文摘
We mathematically and experimentally demonstrate the nonlinearity suppression of optical transmitter in multiband orthogonal frequency division multiplexing based radio over fiber system (multiband OFDM-RoF) by feed-forward technique. The proposed method is a simple technique that can decrease static and dynamic nonlinear transfer characteristics. Nonlinearity of multiband OFDM-RoF has been experimentally evaluated by transmitting nine optical OFDM channels. Experimental results show that nonlinear components from optical transmitter are suppressed and EVM is improved by 7.3% in multiband OFDM signal by using the proposed technique.