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:
Feb. 17, 2026
Filed:
Dec. 17, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Gwillerm Froc, Rennes, FR;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A coherent optical receiver comprises a local oscillator, a polarization-diversity actuator configured for modifying an optical signal output by the local oscillator and a 2×2 coupler for coupling the optical signal output by the polarization-diversity actuator and a modulated optical signal received from a coherent optical transmitter. The local oscillator thus provides a boosting effect to the amplitude-shift keying modulated optical signal. The coherent optical receiver comprises a controlling unit performing a domain-switching procedure acting on ellipticity main axis orientation and/or ellipticity phase shift for coarse control of the polarization-diversity actuator, and a phase-refining procedure acting on a controlled error signal injected in the phase of the optical signal output by the polarization-diversity actuator for fine control of the polarization-diversity actuator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile