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Effect of Initial Chirp on Femtosecond Gaussian Pulse Compression in Photonic Crystal Fibers

LIU Jing-hui,LI Qiang-hua,SUN Tai-long(Department of Physics,Harbin Normal University,Harbin 150025,CHN)  
As the fiber loss is neglected the effect of initial chirp on the propagation of femtosecond gauss pulse in photonic fibers numerically,by split-step Fourier method.When the initial Gauss pulse width less than 1 ps,high order nonlinear effect in fiber communication must be considered.By simulating and analyzing the change of compression factor,quality factor,peak power of compressed pulse and optimal fiber length,some valuable comclusions are obtained.Gauss pulse with various central wavelength compression can be attained in photonic crystal fibers.
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