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Crosstalk detection schemes for polarization division multiplex transmission

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4 Author(s)
Noe, R. ; Dept. of High-Frequency Eng. & Opt. Commun., Paderborn Univ., Germany ; Hinz, S. ; Sandel, D. ; Wust, F.

Polarization division multiplex (PolDM) is a bandwidth-efficient and sensitive modulation format suitable for upgrading bandwidth-limited trunk lines. We show how control signals for polarization demultiplex can be obtained efficiently. For interleaved return-to-zero (RZ) signals, incoherent crosstalk has to be detected and minimized. In other cases, in particular for non-return-to-zero (NRZ) signals, coherent crosstalk senses penalties much better and should be detected instead. NRZ transmission experiments with either scheme are presented at a data rate of 2×10 Gb/s, with endless polarization tracking. Polarization mode dispersion (PMD) tolerance is also assessed

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Lightwave Technology, Journal of  (Volume:19 ,  Issue: 10 )