Handheld Optical Wireless Mobile Communication

Technology #7146

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Dan Guidotti
Gee Kung-Chang
Faculty Inventor Profile
External Link (www.ece.gatech.edu)

Background: The conventional radio frequency (RF) paradigm does not scale to higher frequencies without great loss of channel capacity, increased bit error, increased noise factor, decreased amplifier gain, loss of the silicon CMOS platform and the VLSI which it represents and huge loss of form factor, in addition to the quasi-optical behavior of the RF field above about 150 GHz.

Technology: Telecom wavelengths, general methodologies and new technology are extended to play a usher in the new paradigm of mobile optical wireless communication. Progress already made, principally in the electro-optical properties of silicon, epitaxial growth of germanium on silicon and in silicon micromachining is adapted to construct low power, integrated silicon electro-optical circuits to enable high data rate wireless optical communication between handheld or stationary user equipment and an all optical fronthaul network access to the Internet. Along with mobile optical wireless technology it will be necessary to design integrated, compact, low power electrooptic liquid crystal polymer (LCP) structures for light steering and adaptive electrooptic lens structures for fine focus adjustments on the fly. The goal is to enable seamless optical connectivity between optical wireless user equipment and the Internet via "all-optical" downlink an uplink wireless interfaces with high data rate, low latency, and truly error free mobile communication compatible with Internet bit error rates.

Potential Commercial Applications:

  • Data center wireless links
  • Optical wireless hotspots
  • Secure wireless optical communication
  • Mobile and stationary user equipment


  • Extremely high single optical channel capacity
  • Low power consumption 
  • Extremely low form factor, silicon CMOS technology and manufacturing ecosystem.
  • Direct use of existing Telecom network infrastructure through all optical fronthaul network


Gee-Kung Change — Professor — Georgia Tech School of Electrical and Computer Engineering 

Daniel Guidotti — Senior Research Scientist — Georgia Tech School of Electrical and Computer Engineering