Energy-efficient 0.26-Tb/s coherent-optical OFDM transmission using photonic-integrated all-optical discrete Fourier transform

I. Kang, X. Liu, S. Chandrasekhar, M. Rasras, H. Jung, M. Cappuzzo, L. T. Gomez, Y. F. Chen, L. Buhl, S. Cabot, J. Jaques

Research output: Contribution to journalArticlepeer-review

Abstract

We propose a novel energy-efficient coherent-optical OFDM transmission scheme based on hybrid optical-electronic signal processing. We demonstrate transmission of a 0.26-Tb/s OFDM superchannel, consisting of 13 x 20-Gb/s polarization-multiplexed QPSK subcarrier channels, over 400-km standard single-mode fiber (SSMF) with BER less than 6.3x10-4 using all-optical Fourier transform processing and electronic 7-tap blind digital equalization per subchannel. We further explore long-haul transmission over up to 960 km SSMF and show that the electronic signal processing is capable of compensating chromatic dispersion up to 16,000 ps/nm using only 15 taps per subchannel, even in the presence of strong inter-carrier interference.

Original languageEnglish (US)
Pages (from-to)896-904
Number of pages9
JournalOptics Express
Volume20
Issue number2
DOIs
StatePublished - Jan 16 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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