Method for optimizing multi-span optical fiber transmission system

Abstract

The invention discloses a method for optimizing a multi-span optical fiber transmission system, which comprises the following steps of carrying out abstract analysis on an optical fiber and an amplifier in the multi-span optical fiber transmission system, extracting factors influencing the system performance and modeling; carrying out derivation calculation on the established mathematical model according to different methods under set conditions to obtain an expression for representing the performance of the optical fiber transmission system; extracting the to-be-optimized quantity from the expression of the performance of the optical fiber transmission system, optimizing the to-be-optimized quantity by using the genetic algorithm, and setting the optical fiber transmission system by usingthe optimized parameters, so that the performance of the optical fiber transmission system can be enhanced. According to the method, multi-factor modeling is carried out by abstractly analyzing and extracting influence factors of the multi-span optical fiber transmission system, so that the expression accuracy of the model on the transmission system is improved; a system transmissibility expression is obtained by deriving a mathematical model, and parameters are optimized by utilizing a genetic algorithm, so that the optimization precision is improved compared with a traditional optimizationalgorithm, and the transmission performance of the system is improved.

Description

technical field [0001] The present invention relates to the field of optical fiber communication, more specifically, to a method for optimizing a multi-span optical fiber transmission system. Background technique [0002] In the past two decades, the transmission capacity of optical fiber communication systems has experienced a huge increase of three orders of magnitude. As the country has listed the new generation of information technology as a strategic emerging industry, so far, the domestic optical communication field has achieved a number of major breakthroughs, mastered core technologies in transmission, access and optical fiber and cable, and gradually formed a regional Develop a characteristic industrial development pattern. However, as the infrastructure of the information age, the optical fiber transmission system will still face huge challenges. A continuous research focus on optical fiber transmission is to continuously increase the transmission capacity of a si...

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a multi-span optical fiber transmission system optimization method in order to overcome the defects in the prior art that the optimization model of the optical fiber transmission system has low accuracy in expressing the transmission system, the precision of parameter optimization is not high, and the improvement of system transmission performance is not ideal

Images