dn

ofiber.refraction.dn(glass_coef, lambda0)[source]

Calculate the first derivative of the refractive index w.r.t. wavelength.

Parameters:

  • glass_coef – array of Sellmeier coefficients obtained from glass(i)

  • lambda0 – wavelength in vacuum [m]

Returns:

the first derivative of index of refraction [1/m]