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

作者：Machi F^*; Alfiad M S; Kuschnerov M; Wuth T; van den Borne D; Hanik N; de Waardt H

来源：IEEE Photonics Technology Letters, 2010, 22(11): 751-753.

DOI：10.1109/LPT.2010.2045495

• Coherent detection
• polarization multiplexing (PolMux)
• quadrature amplitude modulation (QAM)
• quadrature duobinary (QDB)
• quadrature phase-shift keying (QPSK)

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.

• 出版日期2010-6-1