Optical RAM row access with WDM-enabled all-passive row/column decoders

Theonitsa Alexoudi, Sotirios Papaioannou, George T. Kanellos, Amalia Miliou, Nikos Pleros

Research output: Contribution to journalArticle (Academic Journal)peer-review

5 Citations (Scopus)


In this letter, we present new architectural perspectives in optical static RAM configurations by exploiting the wavelength dimension in address domain. We present a 24 optical RAM row decoder (RD) that relies its operation on an all-passive wavelength-selective filtering matrix (λ-matrix), receiving WDM-formatted address bits (Wordline) as input. The 2 RD is followed by an semiconductor optical amplifier Mach-Zehnder interferometer access gate and a column decoding unit to provide complete optical RAM row access. Proof-of-concept experimental verification of a 24 optical RAM RD is shown at 10 Gb/s, providing error-free operation with a peak power penalty lower than 0.2 dB.

Original languageEnglish
Article number6728729
Pages (from-to)671-674
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number7
Publication statusPublished - 1 Apr 2014


  • Mach-Zehnder interferometer (MZI)
  • optical memory
  • optical RAM
  • Optical row decoder
  • optical signal processing
  • semiconductor optical amplifier (SOA)


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