光子学报
光子學報
광자학보
ACTA PHOTONICA SINICA
2009年
7期
1794-1799
,共6页
光纤通信%偏振模色散%快速数值差分递推算法%零邻域马克劳林展开%脉冲展宽%脉冲畸变
光纖通信%偏振模色散%快速數值差分遞推算法%零鄰域馬剋勞林展開%脈遲展寬%脈遲畸變
광섬통신%편진모색산%쾌속수치차분체추산법%령린역마극로림전개%맥충전관%맥충기변
Optical fiber communication%Polarization mode dispersion%Rapid numerical difference recurrence algorithm%Maclaurin expansion near zero domain%Pulse broadening%Pulse distortion
利用快速数值差分递推算法对非线性薛定谔方程进行推导分析,得到一个同时考虑群速色散效应、非线性效应以及偏振模色散效应的时域快速数值差分递推关系,并将该方法应用于研究偏振模色散作用下的光脉冲传输,得到的计算结果分别与解析结果和传统的分步傅里叶算法所得结果进行对比,表明这种快速数值差分递推算法拥有很高的计算准确度,并且物理模型更加合理,完全适合分析计算偏振模色散作用下的光脉冲传输问题.利用该方法研究了光脉冲的畸变以及脉冲展宽问题,获得的计算结果为光纤传输系统的设计提供了参考.
利用快速數值差分遞推算法對非線性薛定諤方程進行推導分析,得到一箇同時攷慮群速色散效應、非線性效應以及偏振模色散效應的時域快速數值差分遞推關繫,併將該方法應用于研究偏振模色散作用下的光脈遲傳輸,得到的計算結果分彆與解析結果和傳統的分步傅裏葉算法所得結果進行對比,錶明這種快速數值差分遞推算法擁有很高的計算準確度,併且物理模型更加閤理,完全適閤分析計算偏振模色散作用下的光脈遲傳輸問題.利用該方法研究瞭光脈遲的畸變以及脈遲展寬問題,穫得的計算結果為光纖傳輸繫統的設計提供瞭參攷.
이용쾌속수치차분체추산법대비선성설정악방정진행추도분석,득도일개동시고필군속색산효응、비선성효응이급편진모색산효응적시역쾌속수치차분체추관계,병장해방법응용우연구편진모색산작용하적광맥충전수,득도적계산결과분별여해석결과화전통적분보부리협산법소득결과진행대비,표명저충쾌속수치차분체추산법옹유흔고적계산준학도,병차물리모형경가합리,완전괄합분석계산편진모색산작용하적광맥충전수문제.이용해방법연구료광맥충적기변이급맥충전관문제,획득적계산결과위광섬전수계통적설계제공료삼고.
The rapid numerical difference recurrence algorithm is used to analyse the nonlinear Schrdinger equation (NLSE) in which the chromatic dispersion and the nonlinearity act together with polarization mode dispersion.And it is used to study the optical pulse transmission with polarization mode dispersion.The calculated results by using the rapid numerical difference recurrence algorithm are contrasted with the analytical results and the results of the split-step Fourier method (SSFM) and indicate that the rapid numerical difference recurrence algorithm is very accurate and more reasonable.It is concluded that the new method is scientific and reasonable for the study of light pulse propagation with polarization mode dispersion.Moreover,it is used to study the pulse distortion and the pulse broadening in the optical pulse transmission with polarization mode dispersion .As a result ,some valuable curves are obtained to help design the optical transmission system.