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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 13 — Jun. 20, 2011
  • pp: 12740–12749

Real-time OFDM transmitter beyond 100 Gbit/s

R. Schmogrow, M. Winter, D. Hillerkuss, B. Nebendahl, S. Ben-Ezra, J. Meyer, M. Dreschmann, M. Huebner, J. Becker, C. Koos, W. Freude, and J. Leuthold  »View Author Affiliations


Optics Express, Vol. 19, Issue 13, pp. 12740-12749 (2011)
http://dx.doi.org/10.1364/OE.19.012740


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Abstract

Real-time OFDM transmitters breaking the 100 Gbit/s barrier require high-performance, usually FPGA-based digital signal processing. Especially the Fourier transform as a key operation of any OFDM system must be optimized with respect to performance and chip area utilization. Here, we demonstrate an alternative to the widely adopted fast Fourier transform algorithm. Based on an extensive yet optimized use of pre-set look-up tables, our FPGA implementation supports fast reconfigurable channel equalization and switching times in the nanosecond range without re-loading any code. We demonstrate the potential of the concept by realizing the first real-time single polarization OFDM transmitter generating a 101.5 Gbit/s data stream by modulating 58 subcarriers with 16QAM.

© 2011 OSA

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.4510) Fiber optics and optical communications : Optical communications

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 14, 2011
Revised Manuscript: June 4, 2011
Manuscript Accepted: June 4, 2011
Published: June 16, 2011

Citation
R. Schmogrow, M. Winter, D. Hillerkuss, B. Nebendahl, S. Ben-Ezra, J. Meyer, M. Dreschmann, M. Huebner, J. Becker, C. Koos, W. Freude, and J. Leuthold, "Real-time OFDM transmitter beyond 100 Gbit/s," Opt. Express 19, 12740-12749 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-13-12740


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References

  1. W. Shieh, H. Bao, and Y. Tang, “Coherent optical OFDM: theory and design,” Opt. Express 16(2), 841–859 (2008). [CrossRef] [PubMed]
  2. N. Cvijetic, “Optical OFDM for next-generation PON,” in Signal Processing in Photonic Communications, OSA Technical Digest (CD) (Optical Society of America, 2010), paper SPTuB6. http://www.opticsinfobase.org/abstract.cfm?URI=SPPCom-2010-SPTuB6 .
  3. X. Liu, S. Chandrasekhar, B. Zhu, P. Winzer, A. Gnauck, and D. Peckham, “448-Gb/s reduced-guard-interval CO-OFDM transmission over 2000 km of ultra-large-area fiber and five 80-GHz-grid ROADMs,” J. Lightwave Technol. 29(4), 483–490 (2011). [CrossRef]
  4. X. Liu, S. Chandrasekhar, B. Zhu, and D. Peckham, “Efficient digital coherent detection of a 1.2-Tb/s 24-carrier no-guard-interval CO-OFDM signal by simultaneously detecting multiple carriers per sampling,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2010), paper OWO2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2010-OWO2 .
  5. F. Buchali, R. Dischler, A. Klekamp, M. Bernhard, and Y. Ma, “Statistical transmission experiments using a real-time 12.1 Gb/s OFDM transmitter,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2010), paper OMS3. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2010-OMS3 .
  6. R. Schmogrow, M. Winter, B. Nebendahl, D. Hillerkuss, J. Meyer, M. Dreschmann, M. Huebner, J. Becker, C. Koos, W. Freude, and J. Leuthold, “101.5 Gbit/s real-time OFDM transmitter with 16QAM modulated subcarriers,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2011), paper OWE5. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2011-OWE5
  7. Y. Benlachtar, P. M. Watts, R. Bouziane, P. Milder, D. Rangaraj, A. Cartolano, R. Koutsoyannis, J. C. Hoe, M. Püschel, M. Glick, and R. I. Killey, “Generation of optical OFDM signals using 21.4 GS/s real time digital signal processing,” Opt. Express 17(20), 17658–17668 (2009). [CrossRef] [PubMed]
  8. B. Inan, O. Karakaya, P. Kainzmaier, S. Adhikari, S. Calabro, V. Sleiffer, N. Hanik, and S. Jansen, “Realization of a 23.9 Gb/s real time optical-OFDM transmitter with a 1024 Point IFFT,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2011), paper OMS2. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2011-OMS2
  9. D. Qian, T. Kwok, N. Cvijetic, J. Hu, and T. Wang, “41.25 Gb/s real-time OFDM receiver for variable rate WDM-OFDMA-PON transmission,” in National Fiber Optic Engineers Conference, OSA Technical Digest (CD) (Optical Society of America, 2010), paper PDPD9. http://www.opticsinfobase.org/abstract.cfm?URI=NFOEC-2010-PDPD9 .
  10. N. Kaneda, Q. Yang, X. Liu, S. Chandrasekhar, W. Shieh, and Y. Chen, “Real-time 2.5 GS/s coherent optical receiver for 53.3-Gb/s sub-banded OFDM,” J. Lightwave Technol. 28(4), 494–501 (2010). [CrossRef]
  11. Q. Yang, N. Kaneda, X. Liu, S. Chandrasekhar, W. Shieh, and Y. Chen, “Towards Real-Time Implementation of Optical OFDM Transmission,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2010), paper OMS6. http://www.opticsinfobase.org/abstract.cfm?URI=OFC-2010-OMS6 .
  12. X. Q. Jin, R. P. Giddings, E. Hugues-Salas, and J. M. Tang, “Real-time demonstration of 128-QAM-encoded optical OFDM transmission with a 5.25bit/s/Hz spectral efficiency in simple IMDD systems utilizing directly modulated DFB lasers,” Opt. Express 17(22), 20484–20493 (2009). [CrossRef] [PubMed]
  13. C. R. Berger, Y. Benlachtar, and R. Killey, “Optimum clipping for optical OFDM with limited resolution DAC/ADC,” in Signal Processing in Photonics Communications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper SPMB5.
  14. S. G. Johnson and M. Frigo, “A modified split-radix FFT with fewer arithmetic operations,” IEEE Trans. Signal Process. 55(1), 111–119 (2007). [CrossRef]
  15. R. Schmogrow, B. Nebendahl, M. Winter, A. Josten, D. Hillerkuss, J. Meyer, M. Dreschmann, M. Huebner, C. Koos, J. Becker, W. Freude, and J. Leuthold, “Error vector magnitude as a performance measure for advanced modulation formats,” (to be submitted).
  16. R. A. Shafik, M. S. Rahman, and A. H. M. R. Islam, “On the extended relationships among EVM, BER and SNR as performance metrics”, in Proceedings of 4th International Conference on Electrical and Computer Engineering, (Dhaka, Bangladesh, 2006) pp.408–411.

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