recently I have learnt the simulation of the uniform SWGC just as the picture show below
I have built the same 2D FDTD model, setting the relative parameter as same as the author of the paper optimized (just as show below) and wanted to reproduce the same results as the paper’s.
however the results of my simulation is much different from the results of the paper. I dont know what cause so big difference.Can you help me check my file? Thanks a lot.
2015 Apodized Focusing Fully Etched Subwavelength Grating Couplers.pdf (1.9 MB)
SWGC_TE.fsp (563.8 KB)