Journal article
1-Tb/s single-channel coherent optical OFDM transmission over 600-km SSMF fiber with subwavelength bandwidth access
M Yiran, Q Yang, Y Tang, S Chen, W Shieh
Optics Express | Published : 2009
DOI: 10.1364/OE.17.009421
Open access
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. © 2009 Optical So..
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Funding Acknowledgements
This work was supported by the Australian Research Council (ARC). The authors would like to thank Dr. Tetsuya Kawanishi from National Institute of Information and Communications Technology (NICT), Japan for providing the optical IQ modulator in the experiment.