Special Issues

Research on real-time dispersion equalization in an OOFDM system based on FPGA

  • TIAN Feng ,
  • LI Xianpeng
  • State Key Laboratory of Information Photonics and Optical Communications;School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received date: 2016-06-30

  Revised date: 2016-08-03

  Online published: 2016-09-21


A method of real-time dispersion equalization for optical OFDM system based on FPGA is researched in this paper. According to the principle of dispersion equalization, a simulation platform for the OFDM-PON system is setup. The results show that the dispersion equalization module based on FPGA can effectively compensate for the dispersion damage, and that the performance of OSNR can be improved by about 0.5~1 dB and the requirement for real-time processing system can be met.

Cite this article

TIAN Feng , LI Xianpeng . Research on real-time dispersion equalization in an OOFDM system based on FPGA[J]. Science & Technology Review, 2016 , 34(16) : 150 -153 . DOI: 10.3981/j.issn.1000-7857.2016.16.019


[1] Seiji Okamoto, Kazushi Toyoda. 512 QAM (54 Gbit/s) coherent optical transmission over 150 km with an optical bandwidth of 4.1 GHz[C]//Conference and Exhibition on Optical Communication 2010. Turin, Ita-ly:IEEE, 2010:1-3.
[2] Tatsunori Omiya, Kazushi Toyoda, Masato Yoshida, et al. 400 Gbit/s fre-quency-division-multiplexed and polarization-multiplexed 256 QAMOFDM transmissionover 400 km with a spectral efficiency of 14 bit/s/Hz[C]//Optical Fiber Communication Conference 2012. Los Angeles:IEEE, 2012:1-3.
[3] Xin Xiangjun, Zhang Lijia, Liu Boand, et al. Dynamic λ-OFDMA with selective multicast overlaid[J]. Optics Express, 2011, 19(8):7847-7855.
[4] Zhang Lijia, Xin Xiangjun, Liu Bo, et al. A novel ECDM-OFDM-PON architecture for next-generation optical access network[J]. Optics Ex-press, 2010, 18(17):18347-18353.
[5] Liu Bo, Xin Xaingjun, Zhang Lijia, et al. A WDM-OFDM-PON archi-tecture with centralized lightwave and PolSK-modulated multicast over-lay[J]. Optics Express, 2010, 18(3):2137-2143.
[6] Jin Xianqing, Giddings Rogers, Tang. Real-time transmission of 3 Gb/s 16-QAM encoded optical OFDM signals over 75 km SMFs with nega-tive power penalties[J]. Optics Express, 2009, 17(17):14574-14585.
[7] Giddings Rogers, Jin Xianqing, Hughes-Salas. Experimental demonstra-tion of a record high 11.25 Gb/s real-time optical OFDM transceiver supporting 25 km SMF end-to-end transmission in simple IMDD sys-tems[J]. Optics Express, 2010, 18(6):5541-5555.
[8] Hugues-Salas Emilio, Jin Xianqing, Giddings Rogers. Directly modulat-ed VCSEL-based real-time 11.25 Gb/s optical OFDM transmission over 2000 m legacy MMFs[J]. IEEE Photonics Journal, 2012, 4(1):143-154.
[9] Qian Dayou, Tai-On Kwok Tyrone, Cvijetic Neda. 41.25 Gb/s realtime OFDM receiver for variable rate WDM-OFDMA-PON transmission[C]//Optical Fiber Communication Conference 2010. San Diego:IEEE, 2010:1-3.
[10] Qiao Yaojun, Zhou Ji, Wang Lei. 1 Gb/s Multimedia service upstream transmission in real-time DSP-based OFDM-PON[C]//International Conference on Communications in China 2013. Xi'an:IEEE, 2013:190-194.
[11] Cho Seung-Hyun, Kyong WhanDoo, Jie Hyun Lee. Demonstration of a real-time 16 QAM encoded 11.52 Gb/s OFDM transceiver for IM/DD OFDMA-PON Systems[C]//Opto Electronics and Communications Con-ference 2013(OECC/PS). Kyoto, Japan:IEEE, 2013:1-2.
[12] Lin Wei, Li Zhaohui, Li Jianping. 18.6 Gb/s DDO-OFDM system without dispersion compensation based on DML[J]. Optical Communication Technology, 2012, 36(10):50-52.