OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 6 — Mar. 19, 2007
  • pp: 2927–2939

Generalized data-aided multi-symbol phase estimation for improving receiver sensitivity in direct-detection optical m-ary DPSK

Xiang Liu  »View Author Affiliations


Optics Express, Vol. 15, Issue 6, pp. 2927-2939 (2007)
http://dx.doi.org/10.1364/OE.15.002927


View Full Text Article

Enhanced HTML    Acrobat PDF (297 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We present a generalized framework of data-aided multi-symbol phase estimation (MSPE) for improving the receiver sensitivity of direct-detection optical m-ary differential phase-shift keying (DPSK) through the extraction of a more accurate phase reference. Derivations of the data-aided MSPE algorithms for quaternary DPSK (DQPSK), 8-ary DPSK, m-ary DPSK, and DPSK/ASK are provided. Simulations show that receiver sensitivity improvements of over 2 dB can be obtained with the data-aided MSPE, enabling the performances of direct-detection m-ary DPSK signals to approach those of coherent homodyne-detection without resorting to an optical local oscillator. Performance improvements in nonlinear transmission are briefly discussed, and an electronic nonlinear phase shift compensation scheme is introduced for DPSK/ASK. Also presented is a simple yet universal receiver platform for m-ary DPSK consisting of just one pair of optical I/Q demodulators and a digital signal processing unit.

© 2007 Optical Society of America

OCIS Codes
(060.1660) Fiber optics and optical communications : Coherent communications
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: October 25, 2006
Revised Manuscript: February 13, 2007
Manuscript Accepted: February 27, 2007
Published: March 19, 2007

Citation
Xiang Liu, "Generalized data-aided multi-symbol phase estimation for improving receiver sensitivity in direct-detection optical m-ary DPSK," Opt. Express 15, 2927-2939 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-6-2927


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. A. H. Gnauck and P. J. Winzer, "Optical phase-shift-keyed transmission," J. Lightwave Technol. 23, 115-130 (2005). [CrossRef]
  2. C. Xu, X. Liu, and X. Wei, "Differential phase-shift keying for high spectral efficiency optical transmissions," IEEE J. Sel. Top. Quantum Electron. 10, 281 - 293 (2004). [CrossRef]
  3. R. Griffin, R. Johnstone, R. Walker, S. Wadsworth, A. Carter, and M. Wale, "Integrated DQPSK transmitter for dispersion-tolerant and dispersion-managed DWDM transmission," in Proceedings of Optical Fiber Communications Conference2003, Paper FP6.
  4. P. S. Cho, V. S. Grigoryan, Y. A. Godin, A. Salamon, and Y. Achiam, "Transmission of 25-Gb/s RZ-DQPSK signals with 25-GHz channel spacing over 1000 km of SMF-28 fiber," IEEE Photon. Technol. Lett. 15, 473-475 (2003). [CrossRef]
  5. A. H. Gnauck, P. J. Winzer, S. Chandrasekhar, and C. Dorrer, "Spectrally efficient (0.8 b/s/Hz) 1-Tb/s (25 × 42.7 Gb/s) RZ-DQPSK transmission over 28 100-km SSMF spans with 7 optical add/drops," in Proceedings of European Conference on Optical Communications2004, post-deadline paper Th4.4.1.
  6. J.-X. Cai, M. Nissov, C. R. Davidson, W. Anderson, Y. Cai, A. N. Pilipetskii, D. G. Foursa, W. W. Patterson, P. C. Corbett, A. J. Lucero, and NealS.  Bergano, "Improved margin in long-haul 40 Gb/s systems using bit-synchronously modulated RZ-DQPSK," in Proceedings of Optical Fiber Communications Conference2006, paper PDP33.
  7. C. Kim and G. Li, "Direct-detection optical differential 8-level phase-shift keying (OD8PSK) for spectrally efficient transmission," Opt. Express 12, 3415-3421 (2004). [CrossRef] [PubMed]
  8. S. Hayase, N. Kikuchi, K. Sekine, and S. Sasaki, "Chromatic dispersion and SPM tolerance of 8-state/symbol (binary ASK and QPSK) modulated signal," in Proceedings of Optical Fiber Communications Conference2004, paper ThM3.
  9. K.-P. Ho, Phase-modulated optical communication systems (Springer, New York, 2005).
  10. D. Divsalar and M. K. Simon, "Multiple-symbol differential detection of MPSK," IEEE Trans. Commun. 38, 300-308 (1990). [CrossRef]
  11. H. Leib, "Data-aided noncoherent demodulation of DPSK," IEEE Trans. Commun. 43, 722-725 (1995). [CrossRef]
  12. Y. Yadin, A. Bilenca, and M. Nazarathy, "Soft detection of multichip DPSK over the nonlinear fiber-optic channel," IEEE Photon. Technol. Lett. 17, 2001-2003 (2005). [CrossRef]
  13. X. Liu, "Digital implementation of soft detection for 3-chip-DBPSK with improved receiver sensitivity and dispersion tolerance," in Proceedings of Optical Fiber Communications Conference2006, paper OTuI2.
  14. M. Nazarathy and E. Simony, "Multichip differential phase encoded optical transmission," IEEE Photon. Technol. Lett. 17, 1133-1135 (2005). [CrossRef]
  15. D. van den Borne, S. Jansen, G. Khoe, H. de Wardt, S. Calabro, and E. Gottwald, "Differential quadrature phase shift keying with close to homodyne performance based on multi-symbol phase estimation," IEE Seminar on Optical Fiber Comm. and Electronic Signal. Processing, Ref. No. 2005-11310 (2005).
  16. X. Liu, "Data-aided multi-symbol phase estimation for receiver sensitivity enhancement in optical DQPSK," in Proceedings of OSA Topic Meeting on Coherent Optical Technologies and Applications (COTA)2006, paper CThB4.
  17. X. Liu, "Receiver sensitivity improvement in optical DQPSK and DQPSK/ASK through data-aided multi-symbol phase estimation," in Proceedings of European Conference on Optical Communications2006, paper We2.5.6.
  18. X. Liu, S. Chandrasekhar, A. H. Gnauck, C. R. Doerr, I. Kang,D. Kilper, L. L. Buhl, and J. Centanni, "DSP-enabled compensation of demodulator phase error and sensitivity improvement in direct-detection 40-Gb/s DQPSK," in Proceedings of European Conference on Optical Communications2006, post-deadline paper Th4.4.5.
  19. J. Lee, P. Roux, U.-V. Koc, T. Link, Y. Baeyens, and Y.-K. Chen, "A 5-b 10-GSample/s A/D converter for 10-Gb/s optical receivers," IEEE J. Solid-State Circuits 39, 1671 - 1679 (2004). [CrossRef]
  20. T. Mizuochi, Y. Miyata, T. Kobayashi, K. Ouchi, K. Kuno, K. Kubo, K. Shimizu, H. Tagami, H. Yoshida, H. Fujita, M. Akita, and K. Motoshima, "Forward error correction based on block turbo code with 3-bit soft decision for 10-Gb/s optical communication systems," IEEE J. Sel. Top. Quantum Electron. 10, 376-386 (2004). [CrossRef]
  21. J. P. Gordon and L. F. Mollenauer, "Phase noise in photonic communications systems using linear amplifiers," Opt. Lett. 15, 1351-1353 (1990). [CrossRef] [PubMed]
  22. Y. Han, C. Kim, and G. Li, "Simplified receiver implementation for optical differential 8-level phase-shift keying," Electron. Lett. 40, 1372-1373 (2004). [CrossRef]
  23. S. Savory and A. Hadjifotiou, "Laser linewidth requirements for optical DQPSK systems," IEEE Photon. Technol. Lett. 16, 930-932 (2004). [CrossRef]
  24. J. M. Kahn, "Modulation and diction techniques for optical communication systems," in Proceedings of OSA Topic Meeting on Coherent Optical Technologies and Applications (COTA)2006, paper CThC1.
  25. X. Liu, X. Wei, R. E. Slusher, C. J. and McKinstrie, "Improving transmission performance in differential phase-shift-keyed systems by use of lumped nonlinear phase-shift compensation," Opt. Lett. 27, 1616-1618 (2002). [CrossRef]
  26. G. Charlet, N. Maaref, J. Renaudier, H. Mardoyan, P. Tran, and S. Bigo, "Transmission of 40Gb/s QPSK with coherent detection over ultra long haul distance improved by nonlinearity mitigation," in Proceedings of European Conference on Optical Communications2006, post-deadline paper Th4.3.4.

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.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited