Incoherent ultrafast OCDMA receiver design with 2 ps all-optical time gate to suppress multiple-access interference

Ivan Glesk, Paul Richard Prucnal, Ivan Andonovic

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

We have investigated both theoretically and experimentally the elimination of multiple-access interference (MAI) in an incoherent optical code-division multiple access (OCDMA) system by using a novel incoherent dual code OCDMA receiver incorporating an ultrafast all-optical time gate (AOTG). A theoretical analysis was performed based on (3,11) frequency-hopping time-spreading OCDMA codes with a chip size of 73 ps. To experimentally demonstrate the elimination of MAI, the novel receiver comprising an ultrafast 2 ps-AOTG was developed and tested in a representative OCDMA network testbed. Experimental measurements confirmed by simulations show error-free [bit error rate (BER) < 10 -12] operation for up to four users. Simulations also predict that receivers equipped with 2 ps-AOTG will more than triple the number of simultaneous users without degrading BER.

Original languageEnglish (US)
Article number4538031
Pages (from-to)861-867
Number of pages7
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume14
Issue number3
DOIs
StatePublished - May 1 2008

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Keywords

  • All-optical data processing (AOTG)
  • Optical code-division multiple access (OCDMA)
  • Optical nonlinearity
  • Optical receiver

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