Assessing mathematical forms employed to describe evolutions of perturbations propagating inside optical fibers

作者：Zhong Xianqiong^*; Chen Jianguo; Gao Song; Lin Xiaodong; Feng Guoying

来源：Journal of Optical Communications, 2006, 27(3): 150-154.

• Asymptotic characteristics
• Linearized nonlinear Schro&amp
• die
• dinger equations
• Modulation instability
• Perturbations propagation

Comparisons have been made with different mathematical forms used to represent perturbation fields in studying the modulation instability happened in optical fibers. Without an artificial constraint, self consistent solutions to the linearized nonlinear Schro¨dinger equation can be deduced, which has recovered a rich variety of evolution characteristics at the initial stage for the perturbations co-propagating with a strong CW radiation inside the optical fiber. Although previous theories have correctly predicted the perturbation gain coefficient, an effort of seeking a constant gain coefficient as suggested in literatures has directly focused the discussions to the asymptotic characteristics of perturbations and therefore failed to give a comprehensive description to the evolutions.

• 出版日期2006
• 单位四川大学