Experimental 5-Tb/s packet-by-packet wavelength switching system using 2.5-Gb/s × 8-λ WDM links

Kimihiro Yamakoshi, Nobuaki Matsuura, Kohei Nakai, Eiji Oki, Naoaki Yamanaka, Takaharu Ohyama, Yuji Akahori

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We have developed an experimental 5-Tb/s packet-by-packet wavelength switching system, OPTIMA-2. This paper describes its hardware architecture. OPTIMA-2 is a non-blocking 3-stage switch using optical wavelength division multiplexing (WDM) links and dynamic bandwidth-sharing. A new scheduling algorithm for variable-length packets is used for the receiver ports of WDM links and simulation results show that it can suppress short-packet delay while keeping high throughput. An implementation of the WDM link using field programable gate arrays and a compact planar lightwave circuit platform is described. Experimental results for the basic operation of optical wavelength switching are also presented.

Original languageEnglish
Pages (from-to)1293-1301
Number of pages9
JournalIEICE Transactions on Communications
Issue number7
Publication statusPublished - 2002 Jul
Externally publishedYes


  • AWG
  • Packet
  • Switch
  • WDM

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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