High-speed visible light communications using individual pixels in a micro light-emitting diode array

Jonathan J. D. McKendry, Richard P. Green, A. E. Kelly, Zheng Gong, Benoit Guilhabert, David Massoubre, Erdan Gu, Martin D. Dawson

Research output: Contribution to journalArticle

163 Citations (Scopus)

Abstract

The high-frequency modulation of individual pixels in III-nitride-based micro-pixel light-emitting diode arrays, where each array consists of 16 × 16 individually addressable 72-μm-diameter pixels, are reported. The devices investigated have peak emission wavelengths at 370, 405, and 450 nm, respectively. The optical -3-dB modulation bandwidth of a typical pixel from the 450-nm-emitting device was found to be approximately 245 MHz. Data transmission at rates of up to 1 Gb/s is demonstrated from a single pixel emitting at 450 nm, using on-off keying nonreturn-to-zero modulation, with a bit-error ratio of less than 1 × 10-10. Such devices have potential for free-space or fiber-coupled visible light communications.
Original languageEnglish
Pages (from-to)1346-1348
Number of pages3
JournalIEEE Photonics Technology Letters
Volume22
Issue number18
DOIs
Publication statusPublished - 8 Jul 2010

Keywords

  • bandwidth
  • GaN
  • micro light-emitting diodes
  • micro-LEDs
  • modulation
  • polymer optical fiber
  • POF
  • white light-emitting diode
  • LED

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