Recent content by gps57

I have tried this before, here is the code tra1filedata = genfromtxt("T vs f (1mm L=100).txt") #transmission data from FDTD lossfiledata = genfromtxt("loss vs f xspan 200.txt") #loss data from MODE loss_dB = lossfiledata[:,1]/1000 lambda_0 = 0.25*2.27 #wavelength kappa =...

Hi, I have these 2 equations: V=V_0*e^(-αL) and V=V_0*10^(-α_dB*L/20) where α_dB is loss in dB/mm and α is attenuation which has 1/mm units. When I solve for α, I get α = α_dB*ln(10)/20, but when I use T = T_0 * e^{-L*α} to convert it to transmission, the values are not correct. The image shows...

Thank you, and thank you for your reply. The equation I have is T = I_0 * e^{-x*α}, where T is the transmission and α the absorption coefficient. Essentially, I need graphs that show α vs frequency, but I'm just having trouble with converting the units, as I mentioned in the question.

I am trying to simulate mode loss for a waveguide and the units I get for loss are dB/mm, but I want to convert the units to just mm^-1 so I can the absorption (α) value. I am guessing there is a specific value that I need to either multiply or divide my values with, but I'm just not sure what...