Demonstration of an eight-user 115-Gchip/s incoherent OCDMA system using supercontinuum generation and optical time gating

Camille Sophie Brès, Ivan Glesk, Paul R. Prucnal

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A system demonstration of an eight-user optical code-division multiple-access (OCDMA) star network, operating at 115 Gchip/s, with a single user bit rate of 5 Gb/s is presented. Error-free transmission is obtained (10-13 bit-error rate or better). Our two-dimensional time-wavelength incoherent OCDMA encoding is based on supercontinuum generation and spectral slicing; quadratic-congruence prime codes are generated using off-the-shelf components. Integrated ultrafast delay lines based on spiral waveguides enable rapid selectivity at the decoder. The need for optical time gating at high data rate to remove multiple-access interference at the receiver is also investigated. 

Original languageEnglish
Pages (from-to)889-891
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number7
DOIs
Publication statusPublished - 2006

Keywords

  • fiber-optic communications
  • Optical codedivision multiple-access (OCDMA)
  • supercontinuum (SC)
  • time gating

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