Dynamic optically reconfigurable gate array

Minoru Watanabe, Fuminori Kobayashi

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)


Optically reconfigurable gate arrays (ORGAs) can readily enable both fast reconfiguration and numerous reconfiguration contexts using an optical holographic memory and optical wide-band reconfiguration connections. Such devices present the possibility of large virtual gate-count very large scale integrations (VLSIs). However, the real gate-count of the VLSI part of the devices is too small-only 80. Moreover, the reconfiguration speed is not sufficiently fast: 16 to 20 μs. For those reasons, this paper clarifies the architecture issues and presents a new architecture of a dynamic optically reconfigurable gate array (DORGA) to improve them. In addition, a comparison is made of results obtained using the previously proposed devices and DORGAs under the same environment Finally, this paper presents a new design of a 51,272-gate-count DORGA with the new

Original languageEnglish
Pages (from-to)3510-3515
Number of pages6
JournalJapanese Journal of Applied Physics
Issue number4 B
Publication statusPublished - Apr 25 2006
Externally publishedYes


  • Dynamic reconfiguration
  • FPGAs
  • OPGas
  • ORGAs
  • Optical reconfiguration

ASJC Scopus subject areas

  • General Engineering
  • General Physics and Astronomy


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