Experimental demonstration of variable weight SAC-OCDMA system for QoS differentiation

Saleh Seyedzadeh, Ghafour Amouzad Mahdiraji, Ratna Kalos Zakiah Sahbudin, Ahmad Fauzi Abas, Siti Barirah Ahmad Anas

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


In this paper the experimental and simulation results of variable-weight spectral amplitude coding optical code division multiple access (VW-SAC-OCDMA) system is demonstrated. In the proposed system, three users with weights of 6, 4 and 2 each operating at data rate of 1.25Gb/s represent video, data and voice services, respectively. Results show that for back-to-back system minimum average power of −20dBm per chip is required to maintain the acceptable performance. Transmission up to 60km of fiber is demonstrated. Using mathematical approximation the capacity of VW-SAC-OCDMA system is demonstrated.
Original languageEnglish
Pages (from-to)495-500
Number of pages6
JournalOptical Fiber Technology
Issue number5
Publication statusPublished - 1 Jul 2014


  • optical code division
  • optical fiber communication
  • variable weight code
  • quality of service differentiation


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