Expressing the perturbation optical field in terms of module and phase, using the linearized nonlinear Schrdinger equation governing the evolution of perturbations, we have deduced the analytical expressions of the mo...Expressing the perturbation optical field in terms of module and phase, using the linearized nonlinear Schrdinger equation governing the evolution of perturbations, we have deduced the analytical expressions of the modules, phases, and gain coefficients of the perturbations with zero or cut-off frequency, and studied the evolutions of the two perturbations travelling along lossless optical fibers in the negative dispersion regime. The results indicate that the phase of the perturbation with zero (or cut-off) frequency increases (or decreases) with the propagation distance monotonously and tends to its asymptotic value nπ+π/2 (or nπ) eventually. The evolution rates of the phases are closely related to the initial phase values. Although the asymptotic values of the field gain coefficients of the above mentioned two perturbations are equal to zero, and the increasing fashion of the modules is different from the familiar exponential type, it still suggests that the perturbations have a divergent nature w展开更多
Subject Code:D06Supported by the National Natural Science Foundation of China and the Strategic Priority Research Program of the Chinese Academy of Sciences,the research team led by Prof.Lin Qiang(林强)at the CAS Key ...Subject Code:D06Supported by the National Natural Science Foundation of China and the Strategic Priority Research Program of the Chinese Academy of Sciences,the research team led by Prof.Lin Qiang(林强)at the CAS Key Laboratory of Tropical Marine Bio-resources and Ecology(LMB),South China Sea Institute of Oceanology,Chinese Academy of Sciences,uncovered the seahorse genome and the evolution of its specialized morphology,which was published in Nature as a cover article(2016,540:395—399).展开更多
基金This work was supported by the Chinese Institute of Engineering Physics and the National Natural Science Foundation of China (No. 10176019)
文摘Expressing the perturbation optical field in terms of module and phase, using the linearized nonlinear Schrdinger equation governing the evolution of perturbations, we have deduced the analytical expressions of the modules, phases, and gain coefficients of the perturbations with zero or cut-off frequency, and studied the evolutions of the two perturbations travelling along lossless optical fibers in the negative dispersion regime. The results indicate that the phase of the perturbation with zero (or cut-off) frequency increases (or decreases) with the propagation distance monotonously and tends to its asymptotic value nπ+π/2 (or nπ) eventually. The evolution rates of the phases are closely related to the initial phase values. Although the asymptotic values of the field gain coefficients of the above mentioned two perturbations are equal to zero, and the increasing fashion of the modules is different from the familiar exponential type, it still suggests that the perturbations have a divergent nature w
文摘Subject Code:D06Supported by the National Natural Science Foundation of China and the Strategic Priority Research Program of the Chinese Academy of Sciences,the research team led by Prof.Lin Qiang(林强)at the CAS Key Laboratory of Tropical Marine Bio-resources and Ecology(LMB),South China Sea Institute of Oceanology,Chinese Academy of Sciences,uncovered the seahorse genome and the evolution of its specialized morphology,which was published in Nature as a cover article(2016,540:395—399).
