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fiber optic
coupling in a SM fiber optic


optimal lens for coupling a gausian beam into a single mode fiber


Caution
Fill in all input cells.
Choose all parameters unit.
Distances are algebric.
Positive direction is according the horizontal arrow in the bottom right of the scheme
It is assumed that the waist of the refracted beam is located at the fiber entrance.

InputValueunit
wo
wf
x
lam
OutputValueUnit
fito be calculated
xito be calculated
optimal lens for coupling a gausian beam into a single mode fiber
wo : waist radius of the incident gaussian beam wf : mode radius of the fiber optic x : distance from the lens to the waist of the incident gaussian beam lam : wavelength fi : optimal back focal length of the lens xi : distance from the lens to the fiber optic entrance

Note
This calculation page can not detect all unrealistic inputs.



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