Quantum-Enhanced Gyroscopes

Case ID:

This technology is a new type of laser gyroscope that makes use of concepts of quantum squeezing and quantum entanglement to offer improved sensitivity over existing laser gyroscopes.

Laser gyroscopes use laser interferometry to measure changes in their rotation or orientation. They use no (or few) moving parts, unlike traditional mechanical gyroscopes which rely on the inertial properties of a spinning wheel or disc to measure rotation. They are most frequently used in the aerospace and defense industries, as they are lightweight, compact, and resilient.

However, most laser gyroscopes have limited resolution or precision, and often produce a degree of noise in its measurements. As a result, there is a need to provide techniques to improve the performance of laser gyroscopes to make them more useful. This technology uses quantum squeezing (a method of reducing quantum uncertainty in photons) or quantum entanglement to improve precision of existing laser gyroscope technologies.


  • Laser gyroscopes
  • Inertial measurement units
  • Aircraft
  • Spacecraft
  • Defense applications


  • Improved sensitivity
  • Improved performance
  • Reduced signal noise
Patent Information:
Contact For More Information:
Richard Weite
Senior Licensing Manager, College of Optical Sciences
The University of Arizona
Lead Inventor(s):
Zheshen Zhang