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256-QAM subcarrier transmission using coding and optical intensity modulation in distribution networks

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5 Author(s)
Ohtsuka, H. ; NTT Radio Commun. Syst. Lab., Kanagawa, Japan ; Kagami, O. ; Komaki, S. ; Kohiyama, K.
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Fiber-optic transmission of 256 quadrature amplitude modulation (QAM) signals at both 10 Mb/s and 50 Mb/s transmission rates are presented. Theoretical and preliminary experimental bit error rate (BER) performance results are described for two types of 256-QAM signals. Application of error correction coding using a BCH code is very effective in optical analog intensity modulation. It is feasible to use 256-QAM signals as subcarriers in fiber distribution networks.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:3 ,  Issue: 4 )