Joint detection of multiple orbital angular momentum optical modes

Mohammed Alfowzan, Jaime A. Anguita, Bane Vasic

Research output: Contribution to conferencePaper

7 Scopus citations


We address the problem of detection in a multiple-beam orbital angular momentum (OAM)-based free-space optical communication link. Based on experimental channel observations, we extract a statistical model for the coaxial multimode OAM channel affected by atmospheric turbulence. We employ solutions to least square problems to compensate for the interference among optical modes. A solution based on Fincke-Pohst Enumeration Algorithm for least square problems is presented. In addition, Moore-Penrose based analytical solutions are considered (e.g. Zero Forcing). Finally, we provide bit error rate analysis for the channel under investigation.
Original languageAmerican English
Number of pages6
StatePublished - 1 Jan 2013
EventGLOBECOM - IEEE Global Telecommunications Conference -
Duration: 1 Jan 2013 → …


ConferenceGLOBECOM - IEEE Global Telecommunications Conference
Period1/01/13 → …


  • channel crosstalk
  • free-space optical communication
  • orbital angular momentum
  • turbulent channels


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