Soliton fusion and fission for the high-order coupled nonlinear Schr?dinger system in fiber lasers  

作　　者：Tian-Yi Wang Qin Zhou Wen-Jun Liu 王天一;周勤;刘文军(State Key Laboratory of Information Photonics and Optical Communications,School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China;Mathematical Modeling and Applied Computation(MMAC)Research Group,Department of Mathematics,King Abdulaziz University,Jeddah 21589,Saudi Arabia)

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]Mathematical Modeling and Applied Computation(MMAC)Research Group,Department of Mathematics,King Abdulaziz University,Jeddah 21589,Saudi Arabia

出　　处：《Chinese Physics B》2022年第2期250-254,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11875008,12075034,11975001,and 11975172);the Open Research Fund of State Key Laboratory of Pulsed Power Laser Technology(Grant No.SKL2018KF04);the Fundamental Research Funds for the Central Universities,China(Grant No.2019XD-A09-3)。

摘　　要：With the rapid development of communication technology,optical fiber communication has become a key research area in communications.When there are two signals in the optical fiber,the transmission of them can be abstracted as a high-order coupled nonlinear Schr¨odinger system.In this paper,by using the Hirota’s method,we construct the bilinear forms,and study the analytical solution of three solitons in the case of focusing interactions.In addition,by adjusting different wave numbers for phase control,we further discuss the influence of wave numbers on soliton transmissions.It is verified that wave numbers k_(11),k_(21),k_(31),k_(22),and k_(32)can control the fusion and fission of solitons.The results are beneficial to the study of all-optical switches and fiber lasers in nonlinear optics.

关 键 词：SOLITON Hirota’s method high-order coupled nonlinear Schrodinger system soliton transmission 

分 类 号：TN929.11[电子电信—通信与信息系统] TN248[电子电信—信息与通信工程]