公开(公告)号：US20180191447A1

公开(公告)日：2018-07-05

申请号：US15906514

申请日：2018-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Enbo ZHOU ,  Yuanjun LIANG ,  Tianjian ZUO ,  Liang ZHANG

IPC: H04B10/61

CPC classification number: H04B10/613 ,  H04B10/5053 ,  H04B10/61 ,  H04B10/616 ,  H04B10/6165 ,  H04J14/06

Abstract: An optical signal processing method and a coherent receiver, wherein an in-phase signal XI in a first polarization direction and an in-phase signal YI in a second polarization direction are added up to obtain a signal I; a quadrature signal XQ in the first polarization direction and a quadrature signal YQ in the second polarization direction are added up to obtain a signal Q; and quantization, combination, and digital signal processing are performed on the I and the Q. After summation, two signals need to be quantized. Therefore, a quantity of ADCs is reduced by half. In addition, because power consumption of a summation component is less than that of an ADS, power consumption of optical signal processing can be reduced. In addition, because there is a preset value, the summation may be performed after phase-inversion is performed on one analog signal, thereby avoiding a signal loss caused by the summation.