Which mathematical model is suitable for modelling a thin-film optical filter?

Recently, In DWDM systems, they use thin-film optical filter to construct OADM or OXC. I want to ask some expert here, in simulation, which mathematical model is suitable for modeling this type of filter used in optical network, and why?

all I can tell you is that obtical filter model can be estimated from its optical properties such as n(w) and actually optical filter is just a piece of color full glass

Hi

Check this u'll find diffrent models for various types of optical fiber

http://www.imodelit.com/ViewProducts.aspx?CID=101