OSA's Digital Library

Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 11 — Jun. 2, 2014
  • pp: 13454–13459

Digital coherent superposition of optical OFDM subcarrier pairs with Hermitian symmetry for phase noise mitigation

Xingwen Yi, Xuemei Chen, Dinesh Sharma, Chao Li, Ming Luo, Qi Yang, Zhaohui Li, and Kun Qiu  »View Author Affiliations


Optics Express, Vol. 22, Issue 11, pp. 13454-13459 (2014)
http://dx.doi.org/10.1364/OE.22.013454


View Full Text Article

Enhanced HTML    Acrobat PDF (1967 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Digital coherent superposition (DCS) provides an approach to combat fiber nonlinearities by trading off the spectrum efficiency. In analogy, we extend the concept of DCS to the optical OFDM subcarrier pairs with Hermitian symmetry to combat the linear and nonlinear phase noise. At the transmitter, we simply use a real-valued OFDM signal to drive a Mach-Zehnder (MZ) intensity modulator biased at the null point and the so-generated OFDM signal is Hermitian in the frequency domain. At receiver, after the conventional OFDM signal processing, we conduct DCS of the optical OFDM subcarrier pairs, which requires only conjugation and summation. We show that the inter-carrier-interference (ICI) due to phase noise can be reduced because of the Hermitain symmetry. In a simulation, this method improves the tolerance to the laser phase noise. In a nonlinear WDM transmission experiment, this method also achieves better performance under the influence of cross phase modulation (XPM).

© 2014 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4080) Fiber optics and optical communications : Modulation
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers

ToC Category:
Optical Communications

History
Original Manuscript: April 16, 2014
Revised Manuscript: May 19, 2014
Manuscript Accepted: May 20, 2014
Published: May 27, 2014

Citation
Xingwen Yi, Xuemei Chen, Dinesh Sharma, Chao Li, Ming Luo, Qi Yang, Zhaohui Li, and Kun Qiu, "Digital coherent superposition of optical OFDM subcarrier pairs with Hermitian symmetry for phase noise mitigation," Opt. Express 22, 13454-13459 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-11-13454


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. W. Shieh, X. Yi, Y. Tang, “Transmission experiment of multi-gigabit coherent optical OFDM systems over 1000 km SSMF fiber,” Electron. Lett. 43(3), 183–185 (2007). [CrossRef]
  2. A. J. Lowery, L. Du, and J. Armstrong, “Orthogonal frequency division multiplexing for adaptive dispersion compensation in long haul WDM systems,” in Optical Fiber Commun. Conf., Anaheim, CA (2006), Paper PDP39. [CrossRef]
  3. S. L. Jansen, I. Morita, C. W. Schenk, N. Takeda, H. Tanaka, “Coherent optical 25.8-Gb/s OFDM transmission over 4160-km SSMF,” J. Lightwave Technol. 26(1), 6–15 (2008). [CrossRef]
  4. D. Qian, M. Huang, E. Ip, Y. Huang, Y. Shao, J. Hu, and T. Wang, “101.7-Tb/s (370×294-Gb/s) PDM-128QAM-OFDM transmission over 3×55-km SSMF using pilot-based phase noise mitigation,” in Optical Fiber Commun. Conf., USA (2011), paper PDPB5.
  5. S. Wu, Y. Bar-Ness, “OFDM systems in the presence of phase noise: consequences and solutions,” IEEE Trans. Commun. 52(11), 1988–1996 (2004). [CrossRef]
  6. X. Yi, W. Shieh, Y. Ma, “Phase noise effects on high spectral efficiency coherent optical OFDM transmission,” J. Lightwave Technol. 26(10), 1309–1316 (2008). [CrossRef]
  7. J. Armstrong, “Analysis of new and existing methods of reducing intercarrier interference due to carrier frequency offset in OFDM,” IEEE Trans. Commun. 47(3), 365–369 (1999). [CrossRef]
  8. X. Liu, S. Chandrasekhar, P. J. Winzer, A. R. Chraplyvy, R. W. Tkach, B. Zhu, T. F. Taunay, M. Fishteyn, D. J. DiGiovanni, “Scrambled coherent superposition for enhanced optical fiber communication in the nonlinear transmission regime,” Opt. Express 20(17), 19088–19095 (2012). [CrossRef] [PubMed]
  9. X. Liu, A. R. Chraplyvy, P. J. Winzer, R. W. Tkach, S. Chandrasekhar, “Phase-conjugated twin waves for communication beyond the Kerr nonlinearity limit,” Nat. Photonics 7(7), 560–568 (2013). [CrossRef]
  10. Y. Tian, Y. K. Huang, S. Zhang, P. R. Prucnal, T. Wang, “Demonstration of digital phase-sensitive boosting to extend signal reach for long-haul WDM systems using optical phase-conjugated copy,” Opt. Express 21(4), 5099–5106 (2013). [CrossRef] [PubMed]
  11. X. Yi, X. Chen, C. Li, M. Luo, Q. Yang, Z. Li, and K. Qiu, “Experimental demonstration of digital coherent superposition of optical OFDM subcarrier pairs for mitigation of linear and nonlinear phase noise,” in Optical Fiber Commun. Conf. (2014), Tu3G.6. [CrossRef]
  12. Y. Wu, J. Li, C. Zhao, Y. Zhao, F. Zhang, Z. Chen, “Coherent optical OFDM scheme with inter-carrier interference self-cancellation and common phase error compensation,” Chin. Opt. Lett. 8, 634–638 (2010). [CrossRef]
  13. Y. Tang, W. Shieh, X. Yi, R. Evans, “Optimum design for RF-to-optical up-converter in coherent optical OFDM systems,” IEEE Photon. Technol. Lett. 19(7), 483–485 (2007). [CrossRef]
  14. X. Yi, W. Shieh, Y. Tang, “Phase estimation for coherent optical OFDM,” IEEE Photon. Technol. Lett. 19(12), 919–921 (2007). [CrossRef]
  15. T. Pollet, M. Van Bladel, M. Moeneclaey, “BER sensitivity of OFDM systems to carrier frequency offset andWiener phase noise,” IEEE Trans. Commun. 43(2/3/4), 191–193 (1995). [CrossRef]
  16. Q. Yang, Y. Tang, Y. Ma, W. Shieh, “Experimental demonstration and numerical simulation of 107-Gb/s high spectral efficiency coherent optical OFDM,” J. Lightwave Technol. 27(3), 168–176 (2009). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited