Hi, In POP analysis, for the results as shown below, the position is the waist to the pilot by using pilot as a reference, or it is the pilot to the waist by using waist as a reference? always confused. Thanks,Ying
Dear experts, I’m designing a mode-matching telescope that uses only a concave and convex mirror. I have two questions about handling the gaussian beam in zemax. 1. The too large waist size and waist location deviationCurrently, I’m using skew-ray gaussian beam analysis and POP coupling to check the design. My design has ~3 degrees of incident angle to the mirror, so astigmatism of the gaussian beam occurs. But deviation of waist location is too large than expected in skew Gaussian beam analysis. in ray transfer matrix analysis, astigmatism of the curved surface is described like this. Image from wikipedia “Ray transfer matrix analysis”COS(3degree) is about 0.9986…~1 so I think the incident angle of my telescope will make small amounts of gaussian defocus. but zemax skew analysis shows ~40mm of waist position displacement. I can't tell if I made an error in optical theory or if I made a mistake in the initial setting of the simulation of the zemax program. Changes in Gaussian beams i
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