High-Spectral-Efficiency 114-Gb/s Transmission Using PolMux-RZ-8PSK Modulation Format and Single-Ended Digital Coherent Detection Technique

Employing spectrally efficient PolMux-RZ-8PSK modulation format and single-ended digital coherent detection technique, we demonstrate 8 times 114-Gb/s DWDM transmission over 640 km of SSMF on a 25-GHz grid with record spectral efficiency of 4.2 bit/s/Hz, utilizing no optical dispersion compensation...

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Veröffentlicht in:	Journal of lightwave technology 2009-02, Vol.27 (3), p.146-152
Hauptverfasser:	Xiang Zhou, Jianjun Yu, Dayou Qian, Ting Wang, Guodong Zhang, Magill, P.D.
Format:	Artikel
Sprache:	eng
Schlagworte:	8PSK Algorithms Applied sciences Coding, codes Coherence Coherent Digital Digital signal processing Dispersions Distortion Exact sciences and technology fiber Format High speed optical techniques Information, signal and communications theory Modulation modulation format Modulation, demodulation Multiplexing Optical distortion Optical interferometry Optical modulation optical transmission Optical transmitters Phase detection Phase frequency detector Signal and communications theory Spectra spectral efficiency Stimulated emission Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Wavelength division multiplexing
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Beschreibung
Zusammenfassung:	Employing spectrally efficient PolMux-RZ-8PSK modulation format and single-ended digital coherent detection technique, we demonstrate 8 times 114-Gb/s DWDM transmission over 640 km of SSMF on a 25-GHz grid with record spectral efficiency of 4.2 bit/s/Hz, utilizing no optical dispersion compensation or Raman amplification. We show that the distortion caused by the direct square-law detection of the signal component with single-ended photo detection can be effectively mitigated by a novel DSP algorithm.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2008.2008661