Patent ID: 8995842
Filing Date: 2015-03-31
Classification: H04B

Abstract:
1. An optical communications apparatus for coding optical signals by tuning interbeam delay time using the femtosecond timescale between a pair of entangled photons, comprising: means for implementing a non-linear optical process to generate the pair of quantum entangled photons; an interferometer to receive the pair of quantum entangled photons to generate a entangled-photon beam; an electro-optical system to encode entangled photon pairs, wherein a relative path delay between the pair of quantum entangled photons are tuned or modulated using femtosecond resolution; and a transmitter to transmit the pair of quantum entangled photons, wherein the pair of quantum entangled photons are received at an absorber where absorption followed by fluorescence emission occur at a certain wavelength, based on an encoded relative path delay of femtoseconds in the pair of quantum entangled photons, and wherein a fluorescence signal is detected by a detector.