Multichannel PMD mitigation and outage reduction through FEC with sub-burst-error-correction period PMD scrambling

We study the performance of a novel multichannel polarization-mode dispersion (PMD) mitigation scheme in which forward error correction is utilized with distributed fast polarization scramblers to physically change the PMD of an optical link within each burst-error-correction period. It is shown numerically that the proposed scheme dramatically reduces the PMD outage probability, and that it improves the PMD tolerance for nonreturn-to-zero on-off keying and differential phase-shift keying (DPSK) by approximately 70% and 100%, respectively. The optimal scrambling speeds are determined. The proposed scheme is particularly beneficial to DPSK with a balanced receiver as the optimal decision threshold is the same for all the bits regardless of distortion.

[1]  Keang-Po Ho,et al.  Performance analysis of optical transmission system with polarization-mode dispersion and forward error correction , 1997 .

[2]  Chongjin Xie,et al.  Mitigation of polarization-mode dispersion in multichannel lightwave transmission systems , 2003 .

[3]  X. Liu.  Nonlinear effects in phase shift keyed transmission , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[4]  Yi Dong,et al.  Experimental evaluation of the effect of polarization scrambling speed on the performance of PMD mitigation using FEC , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[5]  A. Pilipetskii,et al.  Direct measure of system margin enhancement by polarization scrambling , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[6]  T. Buerner,et al.  On a high-speed Reed-Solomon Codec architecture for 43 Gb/s optical transmission systems , 2004, 2004 24th International Conference on Microelectronics (IEEE Cat. No.04TH8716).

[7]  C. Xie,et al.  Multichannel PMD mitigation through forward-error-correction with distributed fast PMD scrambling , 2004, Optical Fiber Communication Conference, 2004. OFC 2004.

[8]  B. Wedding,et al.  Enhanced PMD mitigation by polarization scrambling and forward error correction , 2001, OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171).

[9]  K. L. Tokuda,et al.  Polarization-independent electro-optic depolarizer. , 1995, Optics letters.

[10]  Alan H. Gnauck.  40-Gb/s RZ-differential phase shift keyed transmission , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[11]  I.T. Lima,et al.  Time and frequency domain characteristics of polarization-mode dispersion emulators , 2001, IEEE Photonics Technology Letters.