MPCP based active optical access network with PLZT high-speed optical switch

Kazumasa Tokuhashi, Kunitaka Ashizawa, Daisuke Ishii, Satoru Okamoto, Naoaki Yamanaka, Koji Wakayama, Keiichi Nashimoto

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


An active optical access network architecture with our newly developed PLZT ((Pb,La)(Zr,Ti)O 3) high-speed optical switch is introduced, with a view to realizing the next-generation high capacity scalable access network. This system is developed based on the latest IEEE standard of PON (10G-EPON; IEEE802.3av) in consideration of the coordination with future high capacity PON. PLZT high-speed optical switches are able to switch an optical signal at nano-second speed (<510 ns). Generally, the merits of using optical switches are increasing the number of subscribers and transmission distance easily, preventing malicious ONUs from interfacing with the communication between OLT and the other ONUs, realizing fast fiber and OLT protection/restoration and providing various services by controlling optical switches dynamically. This paper focuses on two key technologies; a PLZT optical switch and a new discovery process for active optical access network based on MPCP defined at IEEE802.3. A major challenge in designing active optical access network is supporting the discovery process of MPCP because it does not offer broadcast transmission unlike the regular PON. We propose here a new discovery process; it has been tested successfully in an implementation of our proposed system.

Original languageEnglish
Pages (from-to)118-129
Number of pages12
JournalOptical Switching and Networking
Issue number2
Publication statusPublished - 2012 Apr


  • IEEE802.3av
  • ITU-T G.987
  • Multi Point Control Protocol (MPCP)
  • Optical access network
  • Optical switch

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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