Abstract

We present the architecture of a broad-band polarization mode dispersion (PMD) compensator in a feedforward PMD compensation scheme. It is comprised of four stages. The net effect of the first two stages is equivalent to a frequency dependent polarization rotation that aligns all PMD vectors into a common direction. The third stage compensates the frequency dependent variable differential group delay (DGD) and the last stage compensates for the isotropic dispersion created by the first three stages. In Stokes space formulation, we describe the algorithm to find the required rotation angles of each stage using the PMD concatenation rule, and show that these rotation angles can be synthesized using all-pass filters (APF) in a compact integrated optics circuit. Through numerical simulations, we show significant improvement of the signal quality as a result of the compensation.

© 2004 IEEE

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J. Lightwave Technol. (3)

Other (21)

M. Shtaif, A. Mecozzi, M. Tur and J. A. Nagel, "A compensator for the effects of higher order polarization mode dispersion in optical fibers", IEEE Photon. Technol. Lett., vol. 12, pp. 434-436, Apr. 2000.

P. B. Phua and H. A. Haus, "Deterministic approach to first and second order PMD compensation", IEEE Photon. Technol. Lett., vol. 14, pp. 1270-1272, Sept. 2002.

L. Moller and L. Buhl, "Spectral resolved PMD vector monitoring using a scanning Fabry-Perot filter and a polarimeter", in LEOS Soc. 2000 Ann. Mtg., vol. 1, pp. 220-221.

P. C. Chou, J. M. Fini and H. A. Haus, "Real-time principal state characterization for use in PMD compensators", IEEE Photon. Technol. Lett., vol. 13, pp. 568-570, June 2001.

C. K. Madsen and P. Oswald, "Optical filter architecture for approximating any 2 × 2 unitary matrix", Opt. Lett. , vol. 28, no. 7, pp. 534-536, Apr. 2003.

L. Moller, "Filter synthesis for broad-band PMD compensation in WDM systems", IEEE Photon. Technol. Lett., vol. 12, pp. 1258-1260, Sept. 2000.

A. Eyal and A. Yariv, "Design of broad-band PMD compensation filters", IEEE Photon. Technol. Lett., vol. 14, pp. 1088 -1090, Aug. 2002.

L. E. Nelson and R. M. Jopson, "Introduction to polarization mode dispersion in optical systems", in Proc. Venice Summer School on Polarization Mode Dispersion , Venice, June 24-26 2002,Paper Mon. 1.

X. Wang and A. M. Weiner, "Fast multi-wavelength polarimeter for polarization mode dispersion compensation systems", in 2003 Dig. LEOS Summer Topical Mtg., July 14-16 2003, pp. 163-164.

J. P. Gordon and H. Kogelnik, "PMD fundamentals: Polarization mode dispersion in optical fibers", Proc. Nat. Acad. Sci., vol. 97, no. 9, pp. 4541-4550, Apr. 25, 2000.

G. P. Agrawal, Fiber-Optics Communication System 2, New York: Wiley, 2002.

A. Weiner, "Pulse shaping using LCD light modulators", IEEE J. Quantum Electron., vol. 28, p. 908, 1992.

A. Wiener, "Private communication",

E. Zeek, et al. "Pulse compression by use of deformable mirrors", Opt. Lett., vol. 24, p. 493, 1999.

C. Madsen, et al. "Compact integrated tunable chromatics dispersion compensator with a 4000 ps/nm tuning range", in Proc. OFC 2001,, Paper PD9.

C. K. Madsen, "Integrated waveguide allpass filter tunable dispersion compensators", in Proc. OFC 2002,, Paper TuT1.

C. Madsen and J. Zhao, Optical Filter Design and Analysis: A Signal Processing Approach, New York: Wiley, 1999.

C. K. Madsen, G. Lenz, A. J. Bruce, M. A. Capuzzo, L. T. Gomez and R. E. Scotti, "Integrated all-pass filters for tunable dispersion and dispersion slope compensation", IEEE Photon. Technol. Lett., vol. 11, pp. 1623-1625, Dec 1999.

A. V. Oppenheim and R. W. Schafer, Discrete-Time Signal Processing, Englewood Cliffs, NJ: Prentice-Hall,

C. K. Madsen, J. A. Walker, J. E. Ford, K. W. Goossen, T. N. Nielsen and G. Lenz, "A tunable dispersion compensating MEMS all-pass filter", IEEE Photon. Technol. Lett., vol. 12, pp. 651-653, June 2000.

H. A. Haus and P. B. Phua, "Three representations of polarization mode dispersion", in Proc. Venice Summer School on Polarization Mode Dispersion, Venice, June 24-26 2002,Paper Wed 3.

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