Post-detection nonlinear distortion for efficient MLSD in optical links

doi:10.1364/OE.15.011750

Optics Express

Editor: C. Martijn de Sterke
Vol. 15, Iss. 18 — Sep. 3, 2007
pp: 11750–11755

Post-detection nonlinear distortion for efficient MLSD in optical links

M. Franceschini, G. Ferrari, R. Raheli, F. Meli, and A. Castoldi »View Author Affiliations

Optics Express, Vol. 15, Issue 18, pp. 11750-11755 (2007)
http://dx.doi.org/10.1364/OE.15.011750

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Abstract
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Abstract

In this paper, we investigate the use of nonlinear distortion of the electrical post-detection signal in order to design simple, yet very effective, maximum likelihood sequence detection (MLSD) receivers for optical communications with direct photo-detection. This distortion enables the use of standard Euclidean branch metrics in the Viterbi algorithm which implements MLSD. Our results suggest that the nonlinear characteristic can be optimized with respect to the uncompensated chromatic dispersion and other relevant system parameters, such as the extinction ratio. The proposed schemes with optimized distortion exhibit the same performance of more sophisticated MLSD schemes, still guaranteeing more efficient Viterbi algorithm implementation.

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

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 7, 2007
Revised Manuscript: April 19, 2007
Manuscript Accepted: April 30, 2007
Published: August 30, 2007

Citation
M. Franceschini, G. Ferrari, R. Raheli, F. Meli, and A. Castoldi, "Post-detection nonlinear distortion for efficient MLSD in optical links," Opt. Express 15, 11750-11755 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-18-11750

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References

O. E. Agazzi, M. R. Hueda, H. S. Carrer, and D. E. Crivelli, "Maximum-likelihood sequence estimation in dispersive optical channels," J. Lightwave Technol. 23, 749-763 (2005). [CrossRef]
M. Franceschini, G. Ferrari, R. Raheli, and G. Bongiorni, "Fundamental limits of electronic dispersion compensation in optical communications with direct photodetection," Electron. Lett. 42, 874-875 (2006). [CrossRef]
G. Agrawal, Fiber-Optic Communications Systems (John Wiley & Sons, New York, NY, USA, 2002). [CrossRef]
J. G. Proakis, Digital Communications, 4th Edition. (McGraw-Hill, New York, NY, USA, 2001).
S. Benedetto, E. Biglieri, and V. Castellani, Digital Transmission Theory (Prentice-Hall, Englewood Cliffs, NJ, 1987).
G. D. Forney, Jr., "The Viterbi Algorithm," Proc. IEEE 61, 268-278 (1973). [CrossRef]
T. Foggi, E. Forestieri, G. Colavolpe, and G. Prati, "Maximum likelihood sequence detection with closed-form metrics in OOK optical systems impaired by GVD and PMD," J. Lightwave Technol. 24, 3073-3087 (2006). [CrossRef]
G. Bosco and P. Poggiolini, "Long-distance effectiveness of MLSE IMDD receivers," IEEE Photon. Technol. Lett. 18, 1037-1039 (2006). [CrossRef]
D. Marcuse, "Calculation of bit-error probability for a lightwave system with optical amplifiers and postdetection Gaussian noise," J. Lightwave Technol. 9, 505-513 (1991). [CrossRef]
E. Forestieri, "Evaluating the error probability in lightwave systems with chromatic dispersion, arbitrary pulse shape and pre- and postdetection filtering," J. Lightwave Technol. 18, 1493-1503 (2000). [CrossRef]
M. R. Hueda, D. E. Crivelli, and H. S. Carrer, "Performance of MLSE-based receivers in lightwave systems with nonlinear dispersion and amplified spontaneous emission noise," in Proc. IEEE Global Telecommun. Conf. (GLOBECOM), pp. 299-303 (Dallas, TX, USA, 2004).
J. Prat, A. Napoli, J. M. Gene, M. Omella, P. Poggiolini, and V. Curri, "Square root strategy: a novel method to linearize an optical communication system with electronic equalizers," in Proc. European Conf. on Optical Commun. (ECOC), vol. 3, pp. 713-714 (Glasgow, Scotland, 2005).
G. J. Foschini, L. J. Greenstein, and G. Vanucci, "Noncoherent detection of coherent lightwave signals corrupted by phase noise," IEEE Trans. Commun. 36, 306-314 (1988). [CrossRef]
L. G. Kazovsky and O. K. Tonguz, "ASK and FSK coherent lightwave systems: a simplified approximate analysis," J. Lightwave Technol. 8, 338-352 (1990). [CrossRef]
O. K. Tonguz and L. G. Kazovsky, "Theory of Direct Detection Lightwave Receivers using Optical Amplifiers," J. Lightwave Technol. 9, 174-181 (1991). [CrossRef]
O. K. Tonguz and R. E. Wagner, "Equivalence between Preamplified Direct Detection and Heterodyne Receivers," IEEE Photon. Technol. Lett. 3, 835-837 (1991). [CrossRef]

Electron. Lett.

M. Franceschini, G. Ferrari, R. Raheli, and G. Bongiorni, "Fundamental limits of electronic dispersion compensation in optical communications with direct photodetection," Electron. Lett. 42, 874-875 (2006). [CrossRef]

IEEE Photon. Technol. Lett.

G. Bosco and P. Poggiolini, "Long-distance effectiveness of MLSE IMDD receivers," IEEE Photon. Technol. Lett. 18, 1037-1039 (2006). [CrossRef]
O. K. Tonguz and R. E. Wagner, "Equivalence between Preamplified Direct Detection and Heterodyne Receivers," IEEE Photon. Technol. Lett. 3, 835-837 (1991). [CrossRef]

IEEE Trans. Commun.

G. J. Foschini, L. J. Greenstein, and G. Vanucci, "Noncoherent detection of coherent lightwave signals corrupted by phase noise," IEEE Trans. Commun. 36, 306-314 (1988). [CrossRef]

J. Lightwave Technol.

L. G. Kazovsky and O. K. Tonguz, "ASK and FSK coherent lightwave systems: a simplified approximate analysis," J. Lightwave Technol. 8, 338-352 (1990). [CrossRef]
O. K. Tonguz and L. G. Kazovsky, "Theory of Direct Detection Lightwave Receivers using Optical Amplifiers," J. Lightwave Technol. 9, 174-181 (1991). [CrossRef]
O. E. Agazzi, M. R. Hueda, H. S. Carrer, and D. E. Crivelli, "Maximum-likelihood sequence estimation in dispersive optical channels," J. Lightwave Technol. 23, 749-763 (2005). [CrossRef]
T. Foggi, E. Forestieri, G. Colavolpe, and G. Prati, "Maximum likelihood sequence detection with closed-form metrics in OOK optical systems impaired by GVD and PMD," J. Lightwave Technol. 24, 3073-3087 (2006). [CrossRef]
D. Marcuse, "Calculation of bit-error probability for a lightwave system with optical amplifiers and postdetection Gaussian noise," J. Lightwave Technol. 9, 505-513 (1991). [CrossRef]
E. Forestieri, "Evaluating the error probability in lightwave systems with chromatic dispersion, arbitrary pulse shape and pre- and postdetection filtering," J. Lightwave Technol. 18, 1493-1503 (2000). [CrossRef]

Proc. IEEE

G. D. Forney, Jr., "The Viterbi Algorithm," Proc. IEEE 61, 268-278 (1973). [CrossRef]

Other

M. R. Hueda, D. E. Crivelli, and H. S. Carrer, "Performance of MLSE-based receivers in lightwave systems with nonlinear dispersion and amplified spontaneous emission noise," in Proc. IEEE Global Telecommun. Conf. (GLOBECOM), pp. 299-303 (Dallas, TX, USA, 2004).
J. Prat, A. Napoli, J. M. Gene, M. Omella, P. Poggiolini, and V. Curri, "Square root strategy: a novel method to linearize an optical communication system with electronic equalizers," in Proc. European Conf. on Optical Commun. (ECOC), vol. 3, pp. 713-714 (Glasgow, Scotland, 2005).
G. Agrawal, Fiber-Optic Communications Systems (John Wiley & Sons, New York, NY, USA, 2002). [CrossRef]
J. G. Proakis, Digital Communications, 4th Edition. (McGraw-Hill, New York, NY, USA, 2001).
S. Benedetto, E. Biglieri, and V. Castellani, Digital Transmission Theory (Prentice-Hall, Englewood Cliffs, NJ, 1987).

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