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fiber optic
coupling into a MM fiber optic


coupling efficiency of a plane circular lambertian source injected with a lens into a multimode fiber optic


Caution
Fill in all input cells.
Choose all parameters unit.
All input parameters are positive, except m which is negative in order to produce "real" object and image.
x is negative and xi is positive.
Positive direction is according the horizontal arrow in the bottom right of the scheme.
It is assumed that the light source emits on one side only.

InputValueunit
d
fi
m
dfo
ON
OutputValueUnit
Dto be calculated
xto be calculated
xito be calculated
Cto be calculated
coupling efficiency of a plane circular lambertian source injected with a lens into a multimode fiber optic
d : light source diameter fi : effective focal length of the lens m : magnification dfo : core diameter of the fiber optic ON : numerical aperture of the fiber optic D : clear aperture of the lens according to the numerical aperture of the fiber optic x : distance from the lens to the source xi : distance from the lens to the fiber optic C : coupling efficiency

Note
This calculation page can not detect all unrealistic inputs.



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