OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 32, Iss. 6 — Mar. 15, 2014
  • pp: 1041–1047

Coded-Aided Phase Tracking for Coherent Fiber Channels

Chunpo Pan and Frank R. Kschischang

Journal of Lightwave Technology, Vol. 32, Issue 6, pp. 1041-1047 (2014)


View Full Text Article

Acrobat PDF (1177 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

In coherent optical systems laser phase noise can interact with digital equalization to cause equalization-enhanced impairments, which are a major obstacle for applying higher order modulation formats in coherent optical systems with digital chromatic dispersion compensation. In this paper a code-aided expectation maximization method to track phase noise in such systems is presented. A common measure of laser phase noise is the linewidth. It is shown that with $\sim 11\%$ redundancy, the laser linewidth tolerance for 975 km transmission distance can be increased by $50\%$ , or the system reach for a laser linewidth of 5 MHz can be doubled. A phase-noise-robust 16-point 4–4–4–4 ring constellation was found to have better performance compared to 16QAM and a 2–6–8 ring constellations. Performance can be further improved with a lower code rate and fewer pilot symbols. It is also shown that algorithmic complexity can be reduced without significant reduction in the performance by reducing iterations and using low complexity codes.

© 2013 IEEE

Citation
Chunpo Pan and Frank R. Kschischang, "Coded-Aided Phase Tracking for Coherent Fiber Channels," J. Lightwave Technol. 32, 1041-1047 (2014)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-32-6-1041


Sort:  Year  |  Journal  |  Reset

References

  1. E. Ip, A. P. T. Lau, D. J. F. Barros, J. M. Kahn, "Coherent detection in optical fiber systems ," Opt. Exp. 16, 753-791 (2008).
  2. W. Shieh, X. Yi, Y. Ma, Q. Yang, "Coherent optical OFDM: has its time come? [invited]," J. Opt. Netw. 7, 234-255 (2008).
  3. S. J. Savory, G. Gavioli, R. I. Killey, P. Bayvel, "Electronic compensation of chromatic dispersion using a digital coherent receiver," Opt. Exp. 15, 2120-2126 (2007 ).
  4. X. Li, X. Chen, G. Goldfarb, E. Mateo, I. Kim, F. Yaman, G. Li, "Electronic post-compensation of WDM transmission impairments using coherent detection and digital signal processing," Opt. Exp. 16, 880-888 (2008 ).
  5. E. Ip, J. Kahn, "Fiber impairment compensation using coherent detection and digital signal processing ," J. Lightw. Technol. 28, 502-519 (2010).
  6. W. Shieh and K.-P. Ho, “Equalization-enhanced phase noise for coherent-detection systems using electronic digital signal processing,” Opt. Exp., vol. 16, no. 20, pp. 15 718–15 727, Sep. 2008..
  7. A. P. T. Lau, T. S. R. Shen, W. Shieh, and K.-P. Ho, “Equalization-enhanced phase noise for 100 Gb/s transmission and beyond with coherent detection,” Opt. Exp., vol. 18, no. 16, pp. 17 239–17 251, Aug. 2010. .
  8. K.-P. Ho, A. P. T. Lau, W. Shieh, "Equalization-enhanced phase noise induced timing jitter," Opt. Lett. 36, 585-587 (2011).
  9. C. Xie, "WDM coherent PDM-QPSK systems with and without inline optical dispersion compensation," Opt. Exp. 17, 4815-4823 (2009 ).
  10. I. Fatadin and S. J. Savory, “Impact of phase to amplitude noise conversion in coherent optical systems with digital dispersion compensation,” Opt. Exp., vol. 18, no. 15, pp. 16 273–16 278, Jul. 2010..
  11. T. Xu, G. Jacobsen, S. Popov, J. Li, A. T. Friberg, Y. Zhang, "Analytical estimation of phase noise influence in coherent transmission system with digital dispersion equalization," Opt. Exp. 19, 7756-7768 (2011).
  12. S. Oda, C. Ohshima, T. Tanaka, T. Tanimura, H. Nakashima, N. Koizumi, T. Hoshida, H. Zhang, Z. Tao, J. Rasmussen, "Interplay between local oscillator phase noise and electrical chromatic dispersion compensation in digital coherent transmission system," Proc. Eur. Conf. Opt. Commun. (2010) pp. 1-3.
  13. N. Noels, C. Herzet, A. Dejonghe, V. Lottici, H. Steendam, M. Moeneclaey, M. Luise, L. Vandendorpe, "Turbo synchronization: an EM algorithm interpretation," Proc. IEEE Int. Conf. Commun. (2003) pp. 2933-2937.
  14. N. Noels, V. Lottici, A. Dejonghe, H. Steendam, M. Moeneclaey, M. Luise, L. Vandendorpe, "A theoretical framework for soft-information-based synchronization in iterative (Turbo) receivers," EURASIP J. Wireless Commun. Netw. 2005, 117-129 (2005).
  15. J. Dauwels, S. Korl, and H.-A. Loeliger, “Expectation maximization for joint decoding and phase estimation,” in Proc. 8th Int. Symp. Commun. Theory Appl., 2005, pp. 87–90..
  16. F. Chang, K. Onohara, T. Mizuochi, "Forward error correction for 100 G transport networks," IEEE Commun. Mag. 48, S48-S55 (2010).
  17. K. Azadet, E. Haratsch, H. Kim, F. Saibi, J. Saunders, M. Shaffer, L. Song, M.-L. Yu, "Equalization and FEC techniques for optical transceivers," IEEE J. Solid-State Circuits 37, 317-327 (2002).
  18. S. J. Savory, "Digital filters for coherent optical receivers ," Opt. Exp. 16, 804-817 (2008).
  19. G. P. Agrawal, Fiber-Optic Communication Systems (Wiley , 2002) pp. 116-118.
  20. S. Zhang, P.-Y. Kam, C. Yu, J. Chen, "Decision-aided carrier phase estimation for coherent optical communications," J. Lightw. Technol. 28, 1597-1607 (2010 ).
  21. D. J. MacKay and E. A. Ratzer. (2003, Jan.) “Gallager codes for high rate applications,” [Online]. Available: http://www.cs.toronto.edu/ mackay/highrate.pdf.
  22. H. Wymeersch, M. Moeneclaey, "Iterative code-aided ML phase estimation and phase ambiguity resolution ," EURASIP J. Adv. Signal Process. 2005, 981-988 (2005 ).
  23. C. M. Bishop, Pattern Recognition and Machine Learning (Information Science and Statistics).   Secaucus, NJ, USA: Springer-Verlag Inc., 2006, pp. 144–146..
  24. W. J. Higley, P. Roux, W. A. Kuperman, "Relationship between time reversal and linear equalization in digital communications," J. Acoust. Soc. Am. 120, 35-37 (2006).
  25. T. Moon, "The expectation-maximization algorithm," IEEE Signal Process. Mag. 13, 47 -60 (1996).
  26. O. V. Sinkin, R. Holzlöhner, J. Zweck, C. R. Menyuk, "Optimization of the split-step Fourier method in modeling optical-fiber communications systems," J. Lightw. Technol. 21, 61-68 (2003).
  27. L. Zhang, private communication, Oct. 2012..
  28. S. Fujisawa, D. Ogasahara, E. de Gabory, T. Ito, K. Fukuchi, "Mitigation of intra-channel nonlinear distortions based on PAPR reduction with CD pre-compensation in real-time 50 Gbps PM-QPSK transmission," Proc. Opto-Electron. Commun. Conf. (2012) pp. 439-440 .

Cited By

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.

Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited