Abstract

We discuss optical multi-band orthogonal frequency division multiplexing (OFDM) and show that by using multiple parallel OFDM bands, the required bandwidth of the digital-to-analogue/ analogue-to-digital converters and the required cyclic prefix can significantly be reduced. With the help of four OFDM bands and polarization division multiplexing (PDM) we report continuously detectable transmission of 10$\,\times\,$121.9-Gb/s (112.6-Gb/s without OFDM overhead) at 50-GHz channel spacing over 1,000-km standard single mode fiber (SSMF) without any inline dispersion compensation. In this experiment 8 QAM subcarrier modulation is used which confines the spectrum of the 121.9 Gb/s PDM-OFDM signal within a 22.8 GHz optical bandwidth. Moreover, we propose a digital signal processing method to reduce the matching requirements for the wideband transmitter IQ mixer structures required for PDM-OFDM.

© 2009 IEEE

107 Gb/s coherent optical OFDM transmission over 1000-km SSMF fiber using orthogonal band multiplexing

W. Shieh, Q. Yang, and Y. Ma
Opt. Express 16(9) 6378-6386 (2008)

Transmission of 100-Gb/s DDO-OFDM/OQAM over 320-km SSMF with a single photodiode

Xuebing Zhang, Zhaohui Li, Chao Li, Ming Luo, Haibo Li, Cai Li, Qi Yang, and Shaohua Yu
Opt. Express 22(10) 12079-12086 (2014)

100.29-Gb/s direct detection optical OFDM/OQAM 32-QAM signal over 880  km SSMF transmission using a single photodiode

Chao Li, Qi Yang, Ming Luo, Zhixue He, Haibo Li, Rong Hu, and Shaohua Yu
Opt. Lett. 40(7) 1185-1188 (2015)

4 × 128-Gb/s PDM-DMT signal transmission over 1440-km SSMF with high phase noise tolerance

Cai Li, Ming Luo, and Xiang Li
Opt. Express 26(23) 30901-30910 (2018)

Record-high and robust 17.125 Gb/s gross-rateover 25 km SSMF transmissions of real-time dual-band optical OFDM signals directly modulated by 1 GHz RSOAs

Q. W. Zhang, E. Hugues-Salas, Y. Ling, H. B. Zhang, R. P. Giddings, J. J. Zhang, M. Wang, and J. M. Tang
Opt. Express 22(6) 6339-6348 (2014)