Gaussian duct (medium)

The element is implemented according to Siegman book “Lasers” (1986, ISBN 0-935702-11-5), chapter 20.3 “Gaussian apertures and complex ABCD matrices”.

A gaussian duct is a transversely inhomogeneous medium in which the refractive index and the absorption coefficient may both vary transversely.

The coefficient α is the loss factor per unit length.

The element has the same matrices as the GRIN Medium has, with the only difference that the parameter γ is a complex value (see page 791 formula 43 in the Siegman book).

../_images/ElemGaussDuctMedium.png

See also

Gaussian duct (stab), Elements Matrices, ../catalog, ../elem_props