The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
Jun. 26, 2024
General Dynamics Mission Systems, Inc., Fairfax, VA (US);
Claudia Ann Gamble, Annapolis, MD (US);
Juan C. Juarez, Ellicott City, MD (US);
Todd M.W. Hodges, Mesa, AZ (US);
John Anthony Gariano, Chandler, AZ (US);
John M. Liebetreu, Scottsdale, AZ (US);
Jerry Kwa-Wor Tong, chandler, AZ (US);
GENERAL DYNAMICS MISSION SYSTEMS, INC., Fairfax, VA (US);
Abstract
The classical channel employs a transmit laser and classical modulator. The quantum channel employs a nonlinear medium and spontaneous parametric down conversion producing quantum entangled signal and idler photon pairs which are encoded. The classical and quantum channels are combined to define a propagated hybrid signal. The receiver splits the hybrid signal on basis of wavelength into classical and quantum channels. The quantum receiver employs optical parametric amplification, supplied with energy from a second harmonic generation device synchronized to the classical carrier wavelength. A photodetector and extracts a quantum message from the quantum signal.