损耗和啁啾对皮秒脉冲孤子效应压缩的影响  

Effect of loss and chirp on picosecond pulse soliton-effect compression

作　　者：王润轩[1] 

机构地区：[1]宝鸡文理学院物理系,宝鸡721007

出　　处：《激光技术》2003年第5期415-418,共4页Laser Technology

基　　金：陕西省教育厅专向基金资助项目

摘　　要：在计及光纤损耗的前提下 ,近似求解非线性薛定谔方程 ,分析了单模光纤的负群速度色散区群速度色散 (GVD)和自相位调制 (SPM )对啁啾脉冲的作用 ,定量计算光纤损耗和初始正啁啾对皮秒脉冲孤子效应压缩的影响。结果表明 ,初始正啁啾改善了损耗对压缩参量的不良影响 ,遏制了最佳光纤长度的增加。若选取适当的光纤长度和初始峰值功率 。Based on the optical fiber loss,solving the modified nonlinear Schrodinger equations,the paper analyses the function affected by GVD and SPM in single mode optical fiber in negative GVD area. It quantitatively calculates soliton effect picosecond pulse compression induced by optical fiber loss and initial orthochirp. The result shows that initial orthochirp improves the bad affect of compression factors due to the loss and stops the increase of the best optical fiber length. If an appropriate optical fiber length and initial peak power is selected,efficient compression of orthochirp pulse can be attained in single mode optical fiber.

关 键 词：孤子效应压缩 啁啾脉冲 分裂步长傅里叶变换 光纤损耗 

分 类 号：O437[机械工程—光学工程]