Abstract

We propose a chromatic dispersion monitoring technique by analyzing the tap coefficients in electronic dispersion equalizers using tapped delay lines without needing additional hardware. This technique is robust to varying optical signal-to-noise ratio. The successful chromatic dispersion monitoring is demonstrated by simulation and experiment.

© 2007 Optical Society of America

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References

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  1. F. Buchali and H. Bülow, "Adaptive PMD compensation by electrical and optical techniques," J. Lightwave Technol. 22, 1116-1126 (2004).
    [CrossRef]
  2. A. Faerbert, "Application of digital equalization in optical transmission systems," in Conf. Optical Fiber Communication (OFC), 2006, OTuE5.
  3. A. Ghiasi et al., "Experimental Results of EDC Based Receivers for 2400 ps/nm at 10.7 Gb/s for Emerging Telecom Standards," in Conf. Optical Fiber Communication (OFC), 2006, OTuE3.
  4. D. C. Kilper, R. Bach, D. J. Blumenthal, D. Einstein, T. Landolsi, L. Ostar, M. Preiss and A. E. Willner, "Optical performance monitoring," J. Lightwave Technol. 22, 294-304 (2004).
    [CrossRef]
  5. A. Liu, G. J. Pendock, and R. S. Tucker, "Chromatic dispersion monitoring using time-multiplexed in-band RF tones," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper OThH6.
    [PubMed]

2004 (2)

Bach, R.

Blumenthal, D. J.

Buchali, F.

Bülow, H.

Einstein, D.

Kilper, D. C.

Landolsi, T.

Ostar, L.

Preiss, M.

Willner, A. E.

J. Lightwave Technol. (2)

Other (3)

A. Liu, G. J. Pendock, and R. S. Tucker, "Chromatic dispersion monitoring using time-multiplexed in-band RF tones," in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, Technical Digest (CD) (Optical Society of America, 2005), paper OThH6.
[PubMed]

A. Faerbert, "Application of digital equalization in optical transmission systems," in Conf. Optical Fiber Communication (OFC), 2006, OTuE5.

A. Ghiasi et al., "Experimental Results of EDC Based Receivers for 2400 ps/nm at 10.7 Gb/s for Emerging Telecom Standards," in Conf. Optical Fiber Communication (OFC), 2006, OTuE3.

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Figures (3)

Fig. 1.
Fig. 1.

(a) The principle of CD monitoring in EDC receivers; (b) the definition of ISI factor in this work.

Fig. 2.
Fig. 2.

(a) The tap shapes when OSNR is15 dB, (b) when OSNR is 30 dB, and (c) the ISI factors with different OSNR and CD.

Fig. 3.
Fig. 3.

The simulation and experimental results of CD monitoring.

Equations (1)

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f ISI = k ( C 2 + C 6 ) / C 4

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