[saima buzdarParticipant]

Thanks Damian, But I am still confused with power and phases calculated in decomposition of Modes.
Is that power and phase of each is calculated w.r.t input field?
how we calculate the input power given to that modes? please you can specify any mathematical formula.

Thanks

[saima buzdarParticipant]

Thanks Abdallah and Damian Marek
Actually i want to calculate confinement loss and dispersion, for this i need img{neff} and Re{neff} parameters.
From Abdullah’s answer i assume Modal index is neff
But from Damian merek i assume modal index is showing propagation constant which is as:
propagation constant=alpha+iBeta
please you people can remove this confussion?

Thanks.

[saima buzdarParticipant]

In OptiFDTD after modes calculation we get data like this:

[ Modes ] [ Modal Index ] [ Polarization ]
Mode 1 ( 1.35890436, 0.00000283 ) FVect TE
Mode 2 ( 1.35909016, -0.00000458 ) FVect TM
i want to know that what does modal index show?
How Effective refractive index is calculated in FDTD ?

Thanks

[saima buzdarParticipant]

Hi
Is the Modal index different from the effective refractive index ?
if yes then what does show the modal index value like :Mode 1 ( 1.35890436, 0.00000283 )

Thanks