Reduction of multiple access interference in OCDMA systems using a semiconductor based TPA device

Karl J. Dexter, Paul J. Maguire, Liam P. Barry

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

The authors present a simulation model and results for a four user OCDMA system operating at an overall data rate of 4 Gb/s (4 × 1 Gb/s). The work presents the novel use of a nonlinear detector based on TPA for simultaneous thresholding and detection in an OCDMA system. The detection of the decoded optical signal is also performed using a linear (PIN) detector separately. It is demonstrated that the use of the nonlinear detector can improve the power penalty associated with the transition from a single user system to a four user system by approximately 8.5 dB in comparison to the same system using a linear detector. These results are in good agreement with experimental results already taken.

Original languageEnglish
Title of host publicationProceedings of 2007 9th International Conference on Transparent Optical Networks, ICTON 2007
Pages95-98
Number of pages4
DOIs
Publication statusPublished - 2007
Event2007 9th International Conference on Transparent Optical Networks, ICTON 2007 - Rome, Italy
Duration: 1 Jul 20075 Jul 2007

Publication series

NameProceedings of 2007 9th International Conference on Transparent Optical Networks, ICTON 2007
Volume1

Conference

Conference2007 9th International Conference on Transparent Optical Networks, ICTON 2007
Country/TerritoryItaly
CityRome
Period1/07/075/07/07

Keywords

  • Nonlinear detection
  • Optical code division multiple access
  • Optical thresholder
  • Two-photon absorption

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