Parameters
wx : half width of the incident beam waist in the XZ plane
wy : half width of the incident beam waist in the YZ plane
zx distance from the first lens to the waist of the incident beam
zy distance from the second lens to the waist of the incident beam
lam : wavelength
fix : effective focal length of the first cylindrical lens working in the XZ plane
fiy : effective focal length of the second cylindrical lens working in the YZ plane
M2x : M square factor (M2) in the XZ plane
M2y : M square factor (M2) in the YZ plane
wix : half width of the emerging beam waist in the XZ plan
wiy : half width of the emerging beam waist in the YZ plane
zix : distance from the second cylindrical lens to the waist of the emerging beam in the XZ plane
ziy : distance from the second cylindrical lens to the waist of the emerging beam in the YZ plane
