Single-channel 1.92 Tbit/s, Pol-Mux-64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 7.5 bit/s/Hz

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Abstract

Coherent Nyquist pulses have been used for optical time division multiplexed (OTDM) digital coherent transmission, and a single-channel 1.92 Tbit/s, Pol-Mux-64 QAM coherent Nyquist pulse transmission over 150 km is demonstrated. The ability to considerably reduce the spectral bandwidth of the data signal enabled us to increase the spectral efficiency from 3.2 bit/s/Hz to 7.5 bit/s/Hz when using a Gaussian pulse train.

Original languageEnglish
Pages (from-to)23776-23785
Number of pages10
JournalOptics Express
Volume22
Issue number20
DOIs
Publication statusPublished - 2014 Oct 6

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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