光子晶体光纤中自陡效应对红移色散波的影响

Effects of self-steepening on red-shift dispersive waves in photonic crystal fibers

基于光子晶体光纤中脉冲演变遵循的非线性薛定谔方程,用数值方法研究了三阶色散为负的情形下,自陡效应对红移色散波的影响。结果表明:由于红移色散波产生的机理不同于蓝移色散波,自陡效应对红移色散波的影响并不显著。

On the basis of the nonlinear Schrdinger equation describing pulse propagation in photonic crystal fibers,we numerically investigate the effects of self-steepening on red-shift dispersive waves when the third-order dispersion of the fiber is negative.The results show that due to the generation mechanism of the red-shift dispersive waves is different from that of blue-shift dispersive waves,the effects on the former is not significant.