QAM-PON and super PON for access distribution networks

@article{Delavaux2001QAMPONAS,
  title={QAM-PON and super PON for access distribution networks},
  author={J M Delavaux and G. Wilson and Carola Hullin and B. Neyret and C G Bethea},
  journal={OFC 2001. Optical Fiber Communication Conference and Exhibit. Technical Digest Postconference Edition (IEEE Cat. 01CH37171)},
  year={2001},
  volume={3},
  pages={WN2-WN2}
}
We propose a passive optical network (PON) system based on quadrature amplitude modulated (QAM) sub-carrier multiplexing (SCM) of 53 6 MHz 64/256-QAM channels. Sensitivities of -22 dBm and -17.5 dBm are achieved over 51 km of fiber under full duplex and broadcast delivery to 128 nodes for 64 and 256 QAM, respectively.