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:
May. 26, 2026
Filed:
Dec. 08, 2021
Zte Corporation, Shenzhen, CN;
Jingsong Bei, Shenzhen, CN;
Zhengxuan Li, Shenzhen, CN;
Yiming Zhong, Shenzhen, CN;
Bo Yang, Shenzhen, CN;
ZTE CORPORATION, Shenzhen, CN;
Abstract
A coherent detection method, apparatus, and system are disclosed. The method may include: receiving an intensity-modulated optical signal transmitted by a transmitting end, where the intensity-modulated optical signal is obtained by intensity modulation performed by the transmitting end on an original signal; performing phase modulation on a local oscillator optical signal to obtain a phase-modulated local oscillator optical signal; and mixing the intensity-modulated optical signal and the phase-modulated local oscillator optical signal, and then performing photoelectric detection, analog-to-digital conversion, and digital signal receiving processing in sequence to recover the original signal.