Abstract

We propose a blind quadrature imbalance (QI) compensation algorithm based on the statistical properties of I and Q signals in a receiver. The algorithm estimates the QI parameters of a receiver by calculating the mean, variance, and correlation coefficient of I and Q components. Then, the estimated imbalance parameters are adopted to compensate for the QI in the receiver. Simulation results show that the Q factor is considerably optimized by the application of the QI compensation algorithm in an 80-Gb/s Pol-Mux coherent optical quadrature phase-shift keying (CO-QPSK) system. Compared with conventional algorithms, the proposed algorithm exhibits better performance when the phase deviation from QI exceeds ±15°.

© 2012 Chinese Optics Letters

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2011 (2)

2010 (1)

2009 (1)

C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, Photon. Technol. Lett. 21, 1876 (2009).

2008 (1)

I. Fatadin, D. Ives, and S. J. Savory, IEEE Photon. Technol. Lett. 20, 1733 (2008).

2006 (1)

2004 (1)

J. M. Kahn and K.-P. Ho, IEEE J. Sel. Top. Quantum Electron. 10, 259 (2004).

2001 (1)

M. Valkama, M. Renfors, and V. Koivunen, IEEE Trans. Signal Process. 49, 2335 (2001).

1983 (1)

A. J. Viterbi and A. M. Viterbi, IEEE Trans. Inform. Theory 29, 543 (1983).

Bergano, N. S.

Birk, M.

Cai, J. X.

Cai, Y.

Curto, R.

Davidson, C.

Fatadin, I.

I. Fatadin, D. Ives, and S. J. Savory, IEEE Photon. Technol. Lett. 20, 1733 (2008).

Forghieri, F.

Foursa, D.

Gerard, P.

Glavanovic, M.

Ho, K.-P.

J. M. Kahn and K.-P. Ho, IEEE J. Sel. Top. Quantum Electron. 10, 259 (2004).

Ibragimov, E.

Ip, E.

Ives, D.

I. Fatadin, D. Ives, and S. J. Savory, IEEE Photon. Technol. Lett. 20, 1733 (2008).

Kahn, J. M.

E. Ip and J. M. Kahn, J. Lightwave Technol. 28, 502 (2010).

J. M. Kahn and K.-P. Ho, IEEE J. Sel. Top. Quantum Electron. 10, 259 (2004).

Kalogerakis, G.

Kazovsky, L. G.

Khatana, S.

Koivunen, V.

M. Valkama, M. Renfors, and V. Koivunen, IEEE Trans. Signal Process. 49, 2335 (2001).

Lofland, R.

Lucero, A.

Magill, P.

Malouin, C.

Marcoccia, R.

Mohs, G.

Nelson, L. E.

Nicholl, G.

Nowell, M.

Patterson, W.

Petrou, C. S.

C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, Photon. Technol. Lett. 21, 1876 (2009).

Pilipetskii, A.

Raptis, L.

C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, Photon. Technol. Lett. 21, 1876 (2009).

Renfors, M.

M. Valkama, M. Renfors, and V. Koivunen, IEEE Trans. Signal Process. 49, 2335 (2001).

Roudas, I.

C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, Photon. Technol. Lett. 21, 1876 (2009).

Saunders, R.

Savory, S. J.

I. Fatadin, D. Ives, and S. J. Savory, IEEE Photon. Technol. Lett. 20, 1733 (2008).

Schmidt, T. J.

Shaw, W.

Sinkin, O.

Valkama, M.

M. Valkama, M. Renfors, and V. Koivunen, IEEE Trans. Signal Process. 49, 2335 (2001).

Vgenis, A.

C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, Photon. Technol. Lett. 21, 1876 (2009).

Viterbi, A. J.

A. J. Viterbi and A. M. Viterbi, IEEE Trans. Inform. Theory 29, 543 (1983).

Viterbi, A. M.

A. J. Viterbi and A. M. Viterbi, IEEE Trans. Inform. Theory 29, 543 (1983).

Zhang, B.

Zhou, X.

IEEE J. Sel. Top. Quantum Electron. (1)

J. M. Kahn and K.-P. Ho, IEEE J. Sel. Top. Quantum Electron. 10, 259 (2004).

IEEE Photon. Technol. Lett. (1)

I. Fatadin, D. Ives, and S. J. Savory, IEEE Photon. Technol. Lett. 20, 1733 (2008).

IEEE Trans. Inform. Theory (1)

A. J. Viterbi and A. M. Viterbi, IEEE Trans. Inform. Theory 29, 543 (1983).

IEEE Trans. Signal Process. (1)

M. Valkama, M. Renfors, and V. Koivunen, IEEE Trans. Signal Process. 49, 2335 (2001).

J. Lightwave Technol. (4)

Photon. Technol. Lett. (1)

C. S. Petrou, A. Vgenis, I. Roudas, and L. Raptis, Photon. Technol. Lett. 21, 1876 (2009).

Other (7)

C. S. Petrou, A. Vgenis, A. Kiourti, I. Roudas, J. Hurley, M. Sauer, J. Downie, Y. Mauro, and S. Raghavan, in Proceedings of LEOS 2008 TuFF3 (2008).

S. Chen, A. Al Amin, and W. Shieh. in Proceedings of OFC 2011 OWE2 (2011).

I. Roudas, M. Sauer, J. Hurley, Y. Mauro, and S. Raghavan, in Proceedings of LEOS 2007 MA3.4 (2007).

A. Papoulis, Probability, Random Variables, and Stochastic Processes (McGraw-Hill, New York, 1991).

I. Morohashi, M. Sudo, T. Sakamoto, A. Kanno, A. Chiba, J. Ichikawa, and T. Kawanishi, in Proceedings of ECOC 2010 P3.14 (2010).

D. van den Borne, V. A. J. M. Sleifferet, M. S. Alfiad, S. L. Jansen, and T. Wuth, in Proceedings of ECOC 2009 3.4.1 (2009).

Ivan P. Kaminow, T. Li, and A. Willner, Optical Fiber Telecommunications V B: Systems and Networks (Academic Press, New York, 2008) chap. 20.

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