激光与红外
激光與紅外
격광여홍외
LASER & INFRARED
2001年
1期
29-31
,共3页
刘宏利%于光辉%杨少辰
劉宏利%于光輝%楊少辰
류굉리%우광휘%양소신
飞秒激光脉冲%无色散传输%非线性效应%石英介质
飛秒激光脈遲%無色散傳輸%非線性效應%石英介質
비초격광맥충%무색산전수%비선성효응%석영개질
给出了具有几个光振荡周期长的飞秒激光脉冲在不考虑群速色散的情况下传输方程的解。用数值方法模拟了飞秒激光脉冲的非线性传输，考察了非线性效应对脉冲形状和频谱的影响，得到和慢变振幅近似下不完全一致的结论。
給齣瞭具有幾箇光振盪週期長的飛秒激光脈遲在不攷慮群速色散的情況下傳輸方程的解。用數值方法模擬瞭飛秒激光脈遲的非線性傳輸，攷察瞭非線性效應對脈遲形狀和頻譜的影響，得到和慢變振幅近似下不完全一緻的結論。
급출료구유궤개광진탕주기장적비초격광맥충재불고필군속색산적정황하전수방정적해。용수치방법모의료비초격광맥충적비선성전수，고찰료비선성효응대맥충형상화빈보적영향，득도화만변진폭근사하불완전일치적결론。
The solution of propagation equation of femtosecond laser pulsewith duration of several optical oscillation periods is presented without consideration of group velocity dispersion.By simulating numerically the nonlinear propagation of femtosecond laser pulse,we investigated the influence of nonlinear effect on pulse shape and spectrum.The result we got does not coincide exactly with that of slowly varying envelope approximation.
