111-Gb/s PolMux-Quadrature Duobinary for Robust and Bandwidth Efficient Transmission

F. Machi, M.S. Alfiad, M. Kuschnerov, T. Wuth, D. Borne, van den, N. Hanik, H. Waardt, de

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Abstract

We investigate, by means of simulations, polarization-multiplexed (PolMux) quadrature duobinary (QDB) as a modulation format for transmitting 111-Gb/s signals with high spectral efficiency (SE) and acceptable system complexity. We show that PolMux-QDB can be used to transmit 111-Gb/s signals with an SE of 4-b/s/Hz, but at the same time has a higher tolerance to nonlinear transmission effects and local oscillator laser linewidth compared to PolMux-16QAM at the same data rate and SE.
Original languageEnglish
Pages (from-to)751-753
Number of pages3
JournalIEEE Photonics Technology Letters
Volume22
Issue number11
DOIs
Publication statusPublished - 2010

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