公开(公告)号：US20240243815A1

公开(公告)日：2024-07-18

申请号：US18618399

申请日：2024-03-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuefeng TANG ,  Qiang JIN ,  Wing Chau NG ,  Chuandong LI

IPC: H04B10/54 ,  H04L27/36

CPC classification number: H04B10/541 ,  H04L27/36

Abstract: Systems and methods for In-phase and Quadrature modulation. The method includes i) processing In-phase digital signals and Quadrature digital signals and generating PT modulated In-phase analog signals and PT modulated Quadrature analog signals, ii) receiving an optical signal, iii) modulating the optical signal in accordance with the PT modulated In-phase analog signals and the PT modulated Quadrature analog signals and generate PT modulated In-phase optical signals and PT modulated Quadrature optical signals, iv) biasing the PT modulated In-phase optical signals and the PT modulated Quadrature optical signals to a null point, v) adjusting a phase bias point of the PT modulated Quadrature optical signals and generating phase adjusted PT modulated Quadrature optical signals, and vi) combining the PT modulated In-phase optical signals and phase adjusted PT modulated Quadrature optical signal and generate a combined PT modulated optical signal to be transmitted towards a receiver.