CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2007, Vol. 24 ›› Issue (3): 373-377.
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LÜ Lixiang, ZHANG Xiaoping
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Abstract: The positive and negative frequency expressions of quasi-monochromatic optical fields of a pulse in fiber-optic communication and the positive and negative frequency forms of Fourier transformations and nonlinear Schrödinger(NLS) equations are discussed.Especially,in the solution of pulse spectrum,the negative frequency form of NLS equation should be solved by the negative frequency form of Fourier transformation,while the positive frequency form of NLS equation is solved by the positive frequency form of Fourier transformation.An example is given using split step Fourier method.
Key words: nonlinear Schrödinger equation, Fourier transformation, split step Fourier method
CLC Number:
O241.82
TN929.11
LÜ Lixiang, ZHANG Xiaoping. Different Forms of Nonlinear Schrödinger Equation and Solutions Using Split Step Fourier Method[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2007, 24(3): 373-377.
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http://www.cjcp.org.cn/EN/Y2007/V24/I3/373
