光纖非線性孤立子通信
OPTICAL FIBER NONLINEAR SOLITON COMMUNICATION
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摘要: 在單模光纖異常色散區(qū),當非線性與色散平衡時,初始注入的光脈沖演化形成光孤立子。利用光孤立子可實現(xiàn)無畸變傳輸,大大提高光纖通信系統(tǒng)的容量和中繼距離。本文簡述了光孤立子產(chǎn)生的機理,用一種簡明通用的方法求得了多種形式的光纖非線性傳輸方程,給出了無損耗非線性傳輸方程基態(tài)孤立子解完整的一般表示式,同時對孤立子系統(tǒng)設計進行了討論。Abstract: In anomalous dispersion of monomode optical fiber, an optical soliton is evolved from an optical pulse in the fiber when the nonlinearity is balanced by dispersion. Transmission without distortion, which can greatly improve the capacity and relaying distance of the optical communication system, can be realized by using optical solitons. The mechanism of the generation of optical solitons is expounded. Afew forms of nonlinear transmission equation are obtained by using a simple and clear method. The general complete expression of elementary soliton solution of the nonlinear transmission equation without losses is given, and the design of the soliton transmission system is discussed.
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A. Hasegawa, F. Tappert, Appl. Phys. Lett., 23(1973), 142-144.[2]L. F. Mollenauer, R. H. Stolen, J. P. Gordon, Phys, Rev. Lett., 45(1980), 1095-1098.[3]A. Hasegawa, Y. Kodama, Proc. IEEE., 69(1981), 1145-1151.[4]G. B. Whitham, Linear and Nonlinear Waves, New York, 1973.[5]K .J. Blow, N. J. Doran, Opt.Comm., 42(1982), 403-406.[6]V. E. Zakharov, A. B. Shabert, Sov. Phys. JETP, 34(1972), 62-69.[7]G. L. Lamb, Elements of Soliton Theory, New York, 1980.[8]R. H. Hardin, F. D. Tappert, SIAM Rev., 15(1973), 423-424. -
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