  A new scheme for an OAM communications system which exploits the radial
component p of Laguerre Gauss modes in addition to the azimuthal component l
generally used is presented. We derive a new encoding algorithm which makes use
of the spatial distribution of intensity to create an alphabet dictionary for
communication. We investigate the probability of error in decoding, for several
detector options. A possible application could be improved communication
modality for data center networks.
