US Government As Represented by the Secretary of the Army

Robert James Drost

Michael Brodsky

Brian M Sadler

Terrence Joseph Moore

Quantum networking systems and methods for routing entangled photons pairs are described herein. One quantum networking system includes entangled photon sources which generate entangled photons; optical output ports; a reconfigurable switching network connecting to the entangled photon sources and the output ports, which include a regular repeating structure of optical crossbar switches and interconnections for selectively routing individual ones of entangled photons pairs input to the network to and amongst the outputs; and a control module. The control module is configured to receive a request for entangled photons at the output ports; execute a routing algorithm to determine the state of the switches in the reconfigurable switching network to satisfy the request; and generate and transmit control signals to the switching network in order to set the states of the switches according to the executed routing algorithm. The reconfigurable switching network may be a Bene&#x161; or a banyan-type network architecture.

Method and systems for routing entangled photons to quantum network users via a reconfigurable switch networks of optical crossbar switches

A method for determining a network configuration for the delivery of entangled photons individually to a plurality of users, the network comprising a plurality of inputs, switches, and outputs operatively connected by optical fibers;

Method and system of network switch optimization

A system and method for optimizing signal recognition in a light communication system by approximately maximizing the minimum distance between received constellation points; the method comprising identifying the constellation region containing points for transmitting symbols, identifying channel impairments, transforming the constellation region according to the channel impairments into a constellation region of potential received symbols, using signal processing circuitry to apply an algorithm that operates to maximize the minimum distance between constellation points to obtain a symbol constellation in the receiver constellation region, and inverting the transformation to obtain the designed transmitted-symbol constellation. The system comprises signal processing circuitry for performing a preferred methodology.

Growing community of inventors

Washington, DC, United States of America

Robert James Drost