Comparisons of LMS equalizers for PMD mitigation in polarization-multiplexed coherent fiber optic systems

Qiudi Ding; Xiaojun Liang; Shiva Kumar

doi:10.1117/12.2075196

25 September 2014 Comparisons of LMS equalizers for PMD mitigation in polarization-multiplexed coherent fiber optic systems

Qiudi Ding, Xiaojun Liang, Shiva Kumar

Author Affiliations +

Proceedings Volume 9288, Photonics North 2014; 92880B (2014) https://doi.org/10.1117/12.2075196
Event: Photonics North 2014, 2014, Montréal, Canada

Abstract

We present a novel LMS equalizer (FDE) for compensating polarization-mode dispersion (PMD) in polarization-multiplexed coherent fiber-optic systems based on the least mean squares (LMS) method with unstructured channel estimation (USE). It is a low-complexity algorithm compared to the traditional time-domain decision-directed LMS (DD-LMS) algorithm. Also, it converges faster and shows better bit error rate (BER) performance as compared to the frequency-domain block training-directed LMS (BTD-LMS) method.

Citation Download Citation

Qiudi Ding, Xiaojun Liang, and Shiva Kumar "Comparisons of LMS equalizers for PMD mitigation in polarization-multiplexed coherent fiber optic systems", Proc. SPIE 9288, Photonics North 2014, 92880B (25 September 2014); https://doi.org/10.1117/12.2075196

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