Abstract

To study the dynamic performance of a polarizationmode-dispersion compensator (PMDC), a continuous PMD model and a dynamic PMDC model are presented. The continuous PMD model generates continuous PMD and state of polarization (SOP) variations. The statistics of the SOP variation generated by the continuous PMD model follows the Rayleigh distribution, and the SOP variation amplitude scales with the square root of samplingtime interval. The results are compared with those of a numerical and a commercial polarization scrambler, and the difference of the SOP variation characteristics between the PMD model and the polarization scramblers is explained. The continuous PMD model and the dynamic PMDC model are used to study the dynamic performance and speed requirement of a two-stage PMDC. The speed requirement of the PMDC is quantified in the SOP variation in one PMDC loop cycle. The authors found that when the SOP variation is within 3° in one PMDC loop cycle, the dynamic PMD and SOP changes virtually does not cause any degradation in the PMDC performance.

© 2006 IEEE

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IEEE Photon. Technol. Lett. (2)

E. Ciaramella, "Theoretical evidence of dynamical limitations in practical single-stage PMD compensators," IEEE Photon. Technol. Lett. 16, 1843-1845 (2004).

C. Xie, H. Haunstein, "Optimum length of one-stage polarization-mode dispersion compensators with a fixed delay line," IEEE Photon. Technol. Lett. 15, 1228-1230 (2003).

J. Lightw. Technol. (5)

H. Haunstein, W. Sauer-Greff, A. Dittrich, K. Sticht, R. Urbansky, "Principles for electronic equalization of polarization-mode dispersion," J. Lightw. Technol. 22, 1169-1182 (2004).

U. Neukirch, M. Hempstead, G. Piech, Y. Mauro, M. Mlejnek, M. J. Soulliere, M. Webb, D. Pikula, R. Hoyt, M. Anderegg, M. Dailey, F. Wang, C. Drewnowski, D. Sobiski, "Time-resolved performance analysis of a second-order PMD compensator," J. Lightw. Technol. 22, 1189-1200 (2004).

H. Sunnerud, C. Xie, M. Karlsson, P. A. Andrekson, "A comparison between different PMD compensation techniques," J. Lightw. Technol. 20, 368-378 (2002).

M. Karlsson, J. Brentel, P. A. Andrekson, "Long-term measurement of PMD and polarization drift in installed fibers," J. Lightw. Technol. 18, 941-951 (2000).

P. J. Leo, G. R. Gray, G. J. Simer, K. B. Rochford, "State of polarization changes: Classification and measurement," J. Lightw. Technol. 20, 2189-2193 (2003).

Other (10)

M. Brodsky, P. Magill, N. J. Frigo, "Long-term PMD characterization of installed fibers—How much time is adequate?," Optical Fiber Communication Conf., Los Angeles, CA, 2004, Paper F12.

C. Antonelli, A. Mecozzi, M. Brodsky, M. Boroditsky, "A simple analytical model for PMD temporal evolution," Optical Fiber Commun. Conf., Anaheim, CA, 2006, Paper OWJ4.

H. Kogelnik, L. E. Nelson, R. M Jopson, Optical Fiber Telecommunications IVB, I. P. Kaminow and T. Li, Eds. San Diego, CA: Academic, 2002, pp. 725–861.

A. Hamel, P. Gavignet, S. Salaun, J. Poirrier, "Design trade-off for high PMD routes in installed transmission systems," Optical Fiber Commun. Conf., Anaheim, CA, 2006, Paper OFL4.

H. Bülow, W. Baumert, H. Schmuck, F. Mohr, T. Schulz, F. Kuppers, W. Weiershausen, "Measurement of the maximum speed of PMD fluctuation in installed field fiber," Optical Fiber Commun. Conf., San Diego, CA, 1999, Paper WE4.

D. L. Peterson, P. J. Leo, K. B. Rochford, "Field measurements of state of polarization and PMD from a Tier-1 carrier," Optical Fiber Commun. Conf., Los Angeles, CA, 2004, Paper FI1.

J. Poirrier, H. Bülow, F. Buchali, "Optical PMD compensation performance: Numerical assessment," Optical Fiber Commun. Conf., Anaheim, CA, 2002, Paper WI3.

C. Xie, D. Werner, H. Haunstein, "Dynamic polarization mode dispersion (PMD) and PMD compensator model and their application to the study of PMD compensator speed requirement," Optical Fiber Commun. Conf., Anaheim, CA, 2006, Paper OFL5.

M. Brodsky, M. Boroditsky, P. Magill, N. J. Frigo, M. Tur, "Channel-to-channel variation of non-Maxwellian statistics of DGD in a field installed system," Eur. Conf. Optical Commun. (ECOC) SStockholm, Sweden, 2004, Paper WeI.4.1.

C. Xie, L. Möller, R. M Jopson, A. Gnauck, "Efficiency of different feedback signals for polarization mode dispersion compensators," Optical Fiber Commun. Conf., Los Angeles, CA, 2004, Paper WE4.

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