Hi everyone, I need your kindness help for some problems that I had. I made a system that use collimator lens by using POP (I had attached my file below).
I had one problem which is I use the collimator lens (Thorlabs F220APC-633) from the catalog lens and I want to observe the beam width after the collimator lens (surface 4 in my system). I use the merit function editor (POPD- 23,24) to observe my beam width data. The actual data that I get from Thorlabs stated that the output laser with beam diameter of 2.06 mm will emit after through the collimator lens. But, in my system, the beam width did not have same value as the actual data.
In my system, I set the POP with the waist of 0.5 mm and I believe that after the beam go through the collimator lens, the beam width will diverge to 1.03 mm (same as actual data).
Is there any suggestion on how to do it, or maybe I don’t understand enough about it.
If anyone can help me in order to solve the problems, I really appreciate for your kindness.
Thank you.