激光杂志
激光雜誌
격광잡지
LASER JOURNAL
2012年
3期
33-34
,共2页
窄边双脊波导%麦克斯韦方程%时域有限差分法%单模带宽
窄邊雙脊波導%麥剋斯韋方程%時域有限差分法%單模帶寬
착변쌍척파도%맥극사위방정%시역유한차분법%단모대관
double- ridge position on the short side of waveguide%finite- difference time - domain%Maxwell equation:dominant- mode bandwidth
提出用时域有限差分（FDTD）法分析窄边双脊波导主模的单模带宽。通过对宽边双脊波导带宽的分析及与相关文献报道结果的比较验证了FDTD方法分析波导带宽问题的有效性；用FDTD方法计算了脊位置、脊宽及脊高变化对窄边双脊波导主模带宽的影响，计算结果表明：与传统的双脊波导相比，窄边双脊波导减少了单模带宽，可用作脊带宽滤波器。
提齣用時域有限差分（FDTD）法分析窄邊雙脊波導主模的單模帶寬。通過對寬邊雙脊波導帶寬的分析及與相關文獻報道結果的比較驗證瞭FDTD方法分析波導帶寬問題的有效性；用FDTD方法計算瞭脊位置、脊寬及脊高變化對窄邊雙脊波導主模帶寬的影響，計算結果錶明：與傳統的雙脊波導相比，窄邊雙脊波導減少瞭單模帶寬，可用作脊帶寬濾波器。
제출용시역유한차분（FDTD）법분석착변쌍척파도주모적단모대관。통과대관변쌍척파도대관적분석급여상관문헌보도결과적비교험증료FDTD방법분석파도대관문제적유효성；용FDTD방법계산료척위치、척관급척고변화대착변쌍척파도주모대관적영향，계산결과표명：여전통적쌍척파도상비，착변쌍척파도감소료단모대관，가용작척대관려파기。
The finitedifference time- domain （FDTD） method is applied to analyze the bandwidth of the dominant mode of the short side doubleridge waveguide, the numerical results have been compared with ones reported in the literatures, which has demonstrated the efficiency of FDTD method. 31ae bandwidth of the dominant mode of the short side double- ridge waveguide has been calculated, and the law of the dominant mode bandwidth has been obtained when the ridge position, the ridged width, and the ridged height vary. Comparing with the conventional long side double- ridge waveguide~ there is a minmum bandwidth in the the short side double- ridge waveguide.
