کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1543202 | 997471 | 2011 | 13 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Propagation loss computation of W1 photonic crystal waveguides using the cutback technique with the 3D-FDTD method Propagation loss computation of W1 photonic crystal waveguides using the cutback technique with the 3D-FDTD method](/preview/png/1543202.png)
Identifying the origins of the large propagation losses in substrate-type photonic crystal waveguides and subsequently reducing them by means of structural optimization requires a numerical model, which is flexible and accurate enough to allow a quantitative comparison. In this article we discuss the applicability of the cutback-method on numerical transmission spectra obtained from the 3D finite difference time domain (FDTD) method. We present two different implementations of the cutback-method and discuss their suitability to predict the propagation losses of fabricated structures. We compare the computed propagation losses with experimental data and find a remarkable agreement for almost the entire single mode regime of single line-defect waveguides.
► Accurate computation of the propagation losses of very lossy photonic waveguides.
► Application of the cutback-method for numeric computation of propagation losses.
► Verification of numeric FDTD results by a comparison to experimental data.
► Detailed error estimation of the simulation results.
Journal: Photonics and Nanostructures - Fundamentals and Applications - Volume 9, Issue 3, July 2011, Pages 235–247