Affiliation:
1. Beijing University of Posts and Telecommunications
Abstract
In this paper, we propose a multi-dimensional multiplexing scheme for space division multiplexing optical transmission systems based on quaternion chaotic encryption. A constellation compression shaping mapping method is designed to replace the traditional 2n mapping scheme, which leads to flexible encoding modulation. In order to achieve orthogonality between data symbols and effectively suppress crosstalk, the spectrally superposed transmission of three-dimensional (3D) constellation data is carried out by code division multiplexing and 4D carrier-less amplitude phase joint modulation techniques based on orthogonal basis. The Chen's chaotic model is utilized to generate the rotation angle of the constellation points, which enables data encryption without changing the transmitted power, enhancing system’s security. The feasibility and superiority of the proposed scheme are successfully verified by constructing an experimental platform for a seven-core fiber transmission system.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Jiangsu Provincial Key Research and Development Program
The Natural Science Foundation of the Jiangsu Higher Education Institutions of China
The Startup Foundation for Introducing Talent of NUIST
Subject
Atomic and Molecular Physics, and Optics