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Optical Review

, Volume 15, Issue 1, pp 6–10 | Cite as

A vision chip with column-level amplification of optical data signals for indoor optical wireless local area networks

  • Keiichiro KagawaEmail author
  • Hiroaki Asazu
  • Masahiro Nunoshita
  • Jun Ohta
Regular Papers
  • 43 Downloads

Abstract

We present a vision chip architecture with column-level photo-amplification of optical data signals for optical wireless local area networks (LANs) to reduce the pixel area. Based on the architecture, we have fabricated a prototype vision chip in a standard 0.8 μm bipolar complementary metal-oxide-semiconductor (BiCMOS) technology. The device offers position detection of other optical transceivers in the LAN and 4-ch concurrent high-speed optical data acquisition. A data rate of 400 Mbps was demonstrated. The pixel size was 125 μm square, which can be shrunk to smaller than around 60 μm square in 0.35 μm or more advanced BiCMOS or CMOS technologies.

Key words

vision chip optical wireless LAN free-space optical communication 

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Copyright information

© The Optical Society of Japan (An Affiliate of the Japan Society of Applied Physics) 2008

Authors and Affiliations

  • Keiichiro Kagawa
    • 1
    Email author
  • Hiroaki Asazu
    • 2
  • Masahiro Nunoshita
    • 2
  • Jun Ohta
    • 2
  1. 1.Graduate School of Information Science and TechnologyOsaka UniversitySuita, OsakaJapan
  2. 2.Graduate School of Materials ScienceNara Institute of Science and TechnologyIkoma, NaraJapan

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