Real-time 20.37 Gb/s optical OFDM receiver for PON IM/DD systems.
Real-time 20.37 Gb/s optical OFDM receiver for PON IM/DD systems.
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DOI：
10.1364/oe.26.018817
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发表时间：
2018-07
期刊：
影响因子：
3.8
通讯作者：
Julián S. Bruno;V. Almenar;J. Valls;J. Corral
中科院分区：
文献类型：
--
作者：
Julián S. Bruno;V. Almenar;J. Valls;J. Corral
介绍了一种适用于光通信的OFDM接收机的硬件结构。该接收机已在FPGA器件中实现，并用于实验演示在无源光链路中的光OFDM传输，该无源光链路具有直接调制的DFB激光器和DAC/ADC，速率为5 GS/s。使用子载波调制格式高达512-QAM的OFDM信号实现了20.37 Gb/s的比特率，它已成功地传输超过10 km SSMF，频谱效率为8.38 bit/s/Hz。
This paper presents the hardware architecture of an OFDM receiver suitable for optical communications. The receiver has been implemented in an FPGA device and used to demonstrate experimentally an optical OFDM transmission in a passive optical link with a directly modulated DFB laser and DAC/ADC at 5 GS/s. A bit rate of 20.37 Gb/s is achieved using an OFDM signal with subcarrier modulation format up to 512-QAM, it has been successfully transmitted over 10 km SSMF with a spectral efficiency of 8.38 bit/s/Hz.