25.6-Tb/s WDM Transmission of Polarization-Multiplexed RZ-DQPSK Signals

• Published in: Journal of lightwave technology Vol. 26; no. 1; pp. 79 - 84
• Main Authors: Gnauck, A.H., Charlet, G., Tran, P., Winzer, P.J., Doerr, C.R., Centanni, J.C., Burrows, E.C., Kawanishi, T., Sakamoto, T., Higuma, K.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.01.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Band spectra; Bands; Channels; Coding, codes; Differential quadrature phase shift keying; Exact sciences and technology; Filtering; high spectral efficiency; Information, signal and communications theory; modulation formats; Modulation, demodulation; Multiplexing; Optical distortion; Optical fiber communications; Optical fiber filters; Optical fiber polarization; Optical filters; Optical modulation; Optical receivers; Optical telecommunications; Optical transmitters; Signal and communications theory; Spectra; Stimulated emission; Telecommunications; Telecommunications and information theory; Wavelength division multiplexing; Performance evaluation; RZ code; optical fiber communications; Wavelength division multiplexing; Quadrature phase shift keying; Optical transmission; modulation formats; Polarization division multiplexing; Differential quadrature phase shift keying; Optical fiber communication; Differential phase shift keying; Optical modulation; high spectral efficiency; High rate transmission
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2007.912110

We demonstrate record 25.6-Tb/s transmission over 240 km using 160 WDM channels on a 50-GHz grid in the C+L bands. Each channel contains two polarization-multiplexed 85.4-Gb/s RZ-DQPSK signals, yielding a spectral efficiency of 3.2b/s/Hz in each band.