1-Tb/s single-channel coherent optical OFDM transmission over 600-km SSMF fiber with subwavelength bandwidth access

Opt Express. 2009 May 25;17(11):9421-7. doi: 10.1364/oe.17.009421.

Abstract

A 1-Tb/s single-channel coherent optical OFDM (CO-OFDM) signal consisting of continuous 4,104 spectrally-overlapped subcarriers is generated using a novel device of recirculating frequency shifter (RFS). The RFS produces 320.6-GHz wide spectrum using a single laser with superior flatness and tone-to-noise ratio (TNR). The 1-Tb/s CO-OFDM signal is comprised of 36 uncorrelated orthogonal bands achieved by adjusting the delay of the RFS to an integer number of OFDM symbol periods. The 1- Tb/s CO-OFDM signal with a spectral efficiency of 3.3 bit/s/Hz is successfully received after transmission over 600-km SSMF fiber without either Raman amplification or dispersion compensation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Computer Communication Networks / instrumentation*
  • Computer-Aided Design
  • Equipment Design
  • Equipment Failure Analysis
  • Lasers*
  • Microwaves
  • Optical Fibers*
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Signal Processing, Computer-Assisted / instrumentation*
  • Telecommunications / instrumentation*