High-throughput network switch for the RHiNET-2 optically interconnected parallel computing system

Shinji Nishimura, Tomohiro Kudoh, Hiroaki Nishi, Katsuyoshi Harasawa, Nobuhiro Matsudaira, Shigeto Akutsu, Koji Tasyo, Hideharu Amano

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


We have produced a prototype network-switch board (the RHiNET-2/SW) for optical interconnection. Eight pairs of 800-Mbit/s×12-channel optical interconnection modules and a one-chip CMOS ASIC switch LSI (a 784-pin BGA package) are mounted on to a single board. This board allows 8-Gbit/s/port parallel optical data transmission over a distance of up to 100 m, and the aggregate throughput is 64 Gbit/s/board. All of the electrical interfaces are composed of CMOS-LVDS logic. We have evaluated the skew of the signal and the reliability of each optical port by measuring the BER. No errors were detected during the 1011-bit packet data transmission at a data rate of 880 Mbit/s×10 bits (8.8 Gbit/s/port). (This corresponds to a BER of less than 10-11). The skew between data channels in one I/O port was less than 141 ps. The fiber length was 50 m. This test result shows that we achieved a high-throughput and long-transmission-length RHiNET-2/SW system using optical interconnection, and that the reliability of the I/O ports in the RHiNET-2/SW is sufficient for the RHiNET-2 parallel computing system.

Original languageEnglish
Pages (from-to)562-569
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2000 Jan 1
Externally publishedYes
EventOptics in Computing 2000 - Quebec City, Can
Duration: 2000 Jun 182000 Jun 23

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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