The invention provides an apparatus for optical integrated on-chip generation of photon pairs as a building block to create entangled photon states required for quantum information processing. The invention provided a frequency selective optical coupling device which controls the transmission of light by varying the relative dimensions of otherwise symmetrical linear optical waveguides tangential to an annular optical waveguide, thereby controlling the coupling of light between the linear optical waveguides and the annular optical waveguide. Dimensional change of the optical waveguides is achieved by a heated medium in proximity of the optical waveguides and under electronic control.

This technology is the subject of a US patent granted on Nov 5, 2019. Rights are assigned to the United States Air Force but should be available for licensing.

Photon Generator, entangled photon states, optical waveguide

Technology is available for licensing through the US Air Force. Contact the Caesar Group to help connect you to the Tech Transfer agent at the responsible Air Force organization.

https://patents.google.com/patent/US10466418/en?oq=10466418