Universal plot with compensator

Question

Dear Zemax team,
I would like to check the fiber coupling efficiency of my system in dependance of the radius of one of the surfaces.
I am using the FICL operator in the Merit Function and can produce the fiber coupling efficiency plot with a 1D Universal Plot.
This works fine, however I would have to compensate for the focus distance before the fiber to get the correct results. Is there a way to use a Universal plot with a focus distance compensator?
With best regards and many thanks
Markus

Sandrine Auriol · Accepted Answer

Hi MarkusYou could use the Marginal Ray Height solve to get the Image Plane at the paraxial focus for example: If that solution doesn't work, you could either run a tolerancing and check the results. The sensivity analysis can give a good idea of the dependence and can be calculated at more points than the min and max tolerances if you select a 3-term or 5-term polynomial. The software will then fit the coupling vs the toleranced radius by a polynomial. The Monte Carlo can also give a good idea of the distribution.Otherwise you can write a little ZPL/API program to get those values.Let us know if you need more information.Sandrine

Markus · Answer

Dear Sandrine,thank you very much. The Marginal Ray Height solved my problem!Best wishesMarkus

Universal plot with compensator

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