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:
Sep. 22, 2026
Filed:
Jan. 23, 2023
Institut Mines Telecom, Palaiseau, FR;
INSTITUT MINES TELECOM, Palaiseau, FR;
Abstract
An optical communication method comprises modulating an optical carrier (OC) by both first and second electrical signals to provide an optical dual signal (S) comprising quantum (S) and classical (S) signals, first (D) and second (D) data being encoded in the first and second signals respectively; transmitting and receiving said dual optical signal (S) to and from an optical propagation medium; extracting the first and second signals from the received dual signal; compensating in the extracted first signal and from the extracted second signal: a frequency mismatch (Δf) between a central frequency of the optical quantum signal and a local oscillator optical wave (LO); a phase mismatch (Δφ) between the optical carrier and the local oscillator wave; and decoding the first and second data from the compensated first signal and the extracted second signal respectively.