Parameters
wo : waist radius of the incident embedded gaussian beam
wio : waist radius of the refracted embedded gaussian beam
s : distance from the primary principal plane to the waist of the incident embedded gaussian beam
lam : wavelength
M2 : M-square factor
fil : largest optimal effective focal length
fis : smallest optimal effective focal length
sil : distance from the secondary principal plane of the "large focal length" optical system to the waist of the refracted embedded gaussian beam
sis : distance from the secondary principal plane of the "small focal length" optical system to the waist of the refracted embedded gaussian beam
