公开(公告)号：US20250070883A1

公开(公告)日：2025-02-27

申请号：US18810641

申请日：2024-08-21

Applicant: Beijing Institute of Technology

Inventor： Ze DONG ,  Xiangjun XIN ,  Hailian HE ,  Junyuan SONG ,  Ran GAO ,  Zhipei LI ,  Qi ZHANG

IPC: H04B10/516 ,  H04L1/00 ,  H04Q11/00

Abstract: An optical communication method and system with high spectral efficiency and low power consumption based on joint channel coding modulation relates to the technical field of high-speed fiber communication. The method includes a data acquisition step, a symbol multiplexing joint channel coding modulation step, a signal optical communication step, a channel equalization step, and a symbol demultiplexing step. The optical communication method and system improves the problems of relative independence of forward error correction channel coding (FEC) and high order modulation function modules, long code length dependence of FEC, limited spectral efficiency promotion under the limitation of fiber nonlinear effect, and high FEC decoding latency and power consumption in optical communication system. It is beneficial to improving the spectral efficiency and capacity of a coherent optical communication system and optimizing the system latency and power consumption.