the basic theory of frequency chirp in semiconductor lasers is discussed. The relation between linewidth broadening factor and semiconductor’s linewidth can be obtained by utilizing wave equations. The consistence between linewidth broadening factor and chirp parameter in optical fiber communication system is analyzed emphatically. Using Gaussian pulse as signal source
we study the effect of linewidth broadening factor and group velocity dispersion together on the performance of optical fiber communication system by solving nonlinear Schrdinger equation.
关键词
线宽增长因子啁啾半导体激光器色散光纤通信系统
Keywords
linewidth broadening factorchirpSemiconductor laserchromatic dispersionoptical fiber communication system