公开(公告)号：US20230224041A1

公开(公告)日：2023-07-13

申请号：US18013400

申请日：2021-06-29

Applicant: ZTE Corporation

Inventor： Yiming ZHONG ,  Bo YANG ,  Xingang HUANG ,  Jiangyan HE ,  Zhuang MA

IPC: H04B10/2525 ,  H04B10/2543

CPC classification number: H04B10/2525 ,  H04B10/2543

Abstract: Provided are a signal processing method and apparatus, a storage medium, and an electronic apparatus. The method is applied to an optical communication receiving end, and comprises: after receiving an optical analog signal, converting the optical analog signal into a digital signal; and performing nonlinear effect compensation processing on the digital signal.

公开(公告)号：US20240187106A1

公开(公告)日：2024-06-06

申请号：US18546886

申请日：2021-12-08

Applicant: ZTE CORPORATION

Inventor： Jingsong BEI ,  Zhengxuan LI ,  Yiming ZHONG ,  Bo YANG

IPC: H04B10/61

CPC classification number: H04B10/6163 ,  H04B10/6165

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.

公开(公告)号：US20240121006A1

公开(公告)日：2024-04-11

申请号：US18264667

申请日：2021-12-08

Applicant: ZTE CORPORATION

Inventor： Jingsong BEI ,  Zhengxuan LI ,  Yiming ZHONG ,  Bo YANG ,  Yingxiong SONG

IPC: H04B10/61

CPC classification number: H04B10/613 ,  H04B10/6166

Abstract: A coherent detection method and device, and an optical transmission system are disclosed. The method may include: acquiring an optical transmission signal and a local oscillator signal, where a frequency value of the local oscillator signal differs from a frequency value of the optical transmission signal by a preset offset frequency value, the preset offset frequency value being smaller than a symbol rate value of the optical transmission signal; obtaining a coupled signal according to the optical transmission signal and the local oscillator signal; converting the coupled signal into an analog signal; sampling the analog signal according to a preset sampling frequency value and converting the analog signal into a plurality digital signals; and processing two digital signals among the plurality of digital signals so that a phase difference between the two digital signals to is 90 degrees.