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

I. Glesk, P.R. Prucnal, I. Andonovic

Research output: Contribution to journalArticle

25 Citations (Scopus)

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. 

LanguageEnglish
Pages861-867
Number of pages7
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume14
Issue number3
DOIs
Publication statusPublished - Jun 2008

Fingerprint

multiple access
Multiple access interference
code division multiple access
Code division multiple access
receivers
interference
bit error rate
Bit error rate
elimination
frequency hopping
Frequency hopping
Testbeds
simulation
chips

Keywords

  • multiple-access interference
  • MAI
  • optical code-division multiple access
  • OCDMA
  • all-optical time gate
  • AOTG
  • optical nonlinearity
  • optical receiver

Cite this

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title = "Incoherent ultrafast OCDMA receiver design with 2 ps all-optical time gate to suppress multiple-access interference",
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. ",
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