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fiber optic
coupling in a misaligned SM fiber optic


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


Caution
Fill in all input cells.
Choose all parameters unit.
Except L and dy which are positive, distances are algebric.
Positive direction is according the horizontal arrow in the bottom right of the scheme

InputValueunit
wo
x
lam
fi1
fi2
L
wf
dy
T
OutputValueUnit
Cto be calculated
combination of two lenses for coupling a gaussian beam into a laterally shifted 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 dy : lateral shift 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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