【摘要】 基于光子晶体光纤中脉冲演变遵循的非线性演化方程,用数值方法研究了三阶色散为负的情况下色散波的产生及其特性.当三阶色散为负的情况,孤子在长波长方向不断地辐射出色散波,由于色散波处于正常色散区而被展宽,在时域上表现为很宽的基底.更多还原

【Abstract】 Based on the nonlinear Schrdinger equation describing pulse propagation in photonic crystal fibers,we investigate the generation and properties of dispersive waves when the third-order dispersion is negative.The solution will continues to emit dispersive waves which the wavelength is longer than that of solution when the third-or-der dispersion is negative.And the intensity of dispersive is much weakens due to the rapid temporal spreading in the normal dispersion region.更多还原