dispersion manaual caculation

[vignesParticipant]

dear team,

i have collected the various effective mode index for some range of wavelength.. and also data is extracted , now i need to calculate the dispersion coefficient to plot the graph (D vs wvaelength), kindly let me know about that calculation

[RavilParticipant]

Hi Vignes, are you trying to calculate dispersion for SMF (material, waveguide, profile) or MMF?

[vignesParticipant]

dear ravil,

kindly let me know for all things but nw i want to calculate material and waveguide dispersion

[Damian MarekParticipant]

It is straightforward to calculate D once you have B2. First convert the modal index to the propagation constant following the equation outlined by Abdallah:

Modal index

Then using a finite difference to approximate the second derivative you can calculate B2.

http://en.wikipedia.org/wiki/Finite_difference

Cheers

[vignesParticipant]

dear damian ,

thank to u , i got that exactly lets cheer up and happy new year

[RavilParticipant]

Dear Vignes,

Simple explanation about material and waveguide dispersion calculation is given in attached book. Please, let me know if you have any questions.

[RavilParticipant]

Sorry, can attach it due to large size but here is the name
“Optoelectronics-and-Photonics-Principles-and-Practices-S-O-Kasap-Prentice-Hall-2001”
you can find it online…

[vignesParticipant]

dear ravil,

thank to u, i will refer that, happy new year ravil

[vignesParticipant]

dear all,

can any one give the demo of beta2 calculation or code to plot the dispersion curve vs wavelength for my generated effective mode index