High-speed real-time OFDM transmission based on FPGA

Xin Xiao; Fan Li; Jianjun Yu

doi:10.1117/12.2216268

13 February 2016 High-speed real-time OFDM transmission based on FPGA

Xin Xiao, Fan Li, Jianjun Yu

Proceedings Volume 9773, Optical Metro Networks and Short-Haul Systems VIII; 977304 (2016) https://doi.org/10.1117/12.2216268
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

In this paper, we review our recent research progresses on real-time orthogonal frequency division multiplexing (OFDM) transmission based on FPGA. We successfully demonstrated four-channel wavelength-division multiplexing (WDM) 256.51Gb/s 16-ary quadrature amplitude modulation (16QAM)-OFDM signal transmission system for short-reach optical amplifier free inter-connection with real-time reception. Four optical carriers are modulated by four different 16QAM-OFDM signals via 10G-class direct modulation lasers (DMLs). We achieved highest capacity real-time reception optical OFDM signal transmission over 2.4-km SMF with the bit-error ratio (BER) under soft-decision forward error correction (SD-FEC) limitation of 2.4×10^-2. In order to achieve higher spectrum efficiency (SE), we demonstrate 4-channel high level QAM-OFDM transmission over 20-km SMF-28 with real-time reception. 58.72-Gb/s 256QAM-OFDM and 56.4-Gb/s 128QAM-OFDM signal transmission within 25-GHz grid is achieved with the BER under 2.4×10^-2 and real-time reception.

Citation Download Citation

Xin Xiao, Fan Li, and Jianjun Yu "High-speed real-time OFDM transmission based on FPGA", Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VIII, 977304 (13 February 2016); https://doi.org/10.1117/12.2216268

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