Photonic random access memory for 40-Gb/s 16-b burst optical packets

R. Takahashi*, T. Nakahara, K. Takahata, H. Takenouchi, T. Yasui, N. Kondo, H. Suzuki

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)


We present a photonic random access memory (RAM) that can write and read high-speed asynchronous burst optical packets freely by specifying addresses. The photonic RAM consists of an optical clock-pulse generator, an all-optical serial-to-parallel converter, a photonic parallel-to-serial converter, all developed by us, and a complementary metal-oxide-semiconductor RAM as a storage medium, and features large capacity, long-term storage, random access at an arbitrary timing, low power consumption, and compactness. We experimentally confirm its basic operation for 40-Gb/s 16-b optical packets.

Original languageEnglish
Pages (from-to)1185-1187
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number4
Publication statusPublished - 2004 Apr
Externally publishedYes


  • Optical buffer
  • Optical clock
  • Packet switch
  • Parallel-to-serial conversion (PSC)
  • Serial-to-parallel conversion (SPC)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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