zahra mansouri

i shared a pdf file that contained my simulation shape and settings. in this simulation i used standard pml setting but i also simulated this file for higher pml profile before and the answers hasnt been changed.
the problem is that i cant see calculated propagation lenght along the waveguide. i calculate the propagation lenght 2.4 micron but i cant see wave attenuation in that lenght. i use this below relation for calculating propagation lenght(pl).


beta= 2*pi*neff/lambda;