Title :
256-QAM subcarrier transmission using coding and optical intensity modulation in distribution networks
Author :
Ohtsuka, H. ; Kagami, O. ; Komaki, S. ; Kohiyama, K. ; Kavehrad, M.
Author_Institution :
NTT Radio Commun. Syst. Lab., Kanagawa, Japan
fDate :
4/1/1991 12:00:00 AM
Abstract :
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.<>
Keywords :
amplitude modulation; encoding; optical links; optical modulation; 10 Mbit/s; 50 Mbit/s; analog intensity modulation; bit error rate; error correction coding; fiber distribution networks; fibre-optic transmission; optical intensity modulation; quadrature amplitude modulation; subcarrier transmission; subcarriers; Bandwidth; Bit error rate; Error correction codes; Intensity modulation; Noise figure; Optical fiber devices; Optical fiber theory; Optical fibers; Optical modulation; Quadrature amplitude modulation;
Journal_Title :
Photonics Technology Letters, IEEE
