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fiber optic
coupling in a SM fiber optic


combination of two lenses for coupling a gaussian beam into a single mode fiber optic


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

InputValueunit
wo
x
lam
fi1
fi2
L
wf
T
OutputValueUnit
Cto be calculated
xito be calculated
combination of two lenses for coupling a gaussian beam into a single mode fiber optic
wo : waist radius of the incident gaussian beam x : distance from the first lens to the waist of the incident gaussian beam lam : wavelength fi1 : back focal length of the first lens fi2 : back focal length of the second lens L : distance between the two lenses wf : mode radius of the fiber optic T : transmission coefficient at the entrance of the fiber optic C : coupling ratio

Note
This calculation page can not detect all unrealistic inputs.



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