All-optical clock recovery for OCDMA systems with optical time gating

Siti Khadijah Idris, Tolulope Babajide Osadola, Saleem Shaukat, Ivan Glesk

Research output: Contribution to conferenceProceeding


Implementing time gating in ultra-high speed OCDMA networks over long distance transmissions will require precise synchronization in order to suppress the influence of timing jitter on the OCDMA receiver. To implement optical gating, an optical clock is needed to control a switching window i.e., “a time gate” to pass the desired autocorrelation peak while blocking the MAI noise. We demonstrate that the use of a network global clock distribution is not necessary if the receiver synchronization is done via optical clock recovery. In our experimental demonstration a wider eye opening with power budget improvement of ∼7.5 dB was achieved when using all-optical clock recovery compare to clock distribution.
Original languageEnglish
Number of pages4
Publication statusPublished - 2012
Event20th Telecommunications Forum (TELFOR) 2012 - Belgrade, Serbia
Duration: 20 Nov 201222 Nov 2012


Conference20th Telecommunications Forum (TELFOR) 2012


  • power budget
  • time gating
  • WHTS codes
  • all-optical clock recovery


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