Optical wireless communication -in the infrared and visible range - is an attractive solution, especially in environment settings where radio communication encounters difficulties. The Fraunhofer Heinrich Hertz Institute HHI applies modern transmission techniques that enable data-rates up to 1,25 Gbit/s. LED-lamps, normally used for lighting purposes, simultaneously transmit data, even when mobile terminals are not aligned with the access point.


  • Simple optical frontends, off-the-shelf components and standard interfaces
  • Robust communication without transceiver alignment, i.e. no pointing and tracking
  • Optimization of optical senders and receivers for high bandwidth, high linearity and high signal-to-noise ratios
  • Spectrally efficient modulation for high data throughput
  • Support of multi-user communication

Features and Benefits

  • No electromagnetic interference (EMI) with radio systems
  • Unregulated spectrum (optical frequencies) with worldwide availability
  • Simple shielding by opaque surfaces (improved privacy)

VLC Applications

Underwater Communications
Hospital (RF-sensitive)
Data Broadcast via Interior Lighting
Advertising, Messaging