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swept vs non-swept mesh using wave optics, beam envelopes..

Posted Dec 16, 2015, 6:57 p.m. EST Wave Optics, Mesh Version 5.2 0 Replies

Ertan
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I am simulating propagation in an optical fiber. Using the directional coupler example provided, I set ii up as in the attached file. (fiber-propagation-2) For a short length of 20 microns of propagation, when I use free triangular on the boundary and sweep with 10 distribution elements, it all makes sense. (see mesh1, result1)I look at the field at different positions, and it all makes sense. When I used a free tetrahedral map throughout the entire volume I get a different result, and shows patches of field at different locations. (see mesh2, result2)

What is going on here? Is it a must to use swept mesh for beam envelopes? Although, the second case with free tetrahedrals is more detailed, it gives nonsense results..

Thanks ahead for help.
0 Replies Last Post Dec 16, 2015, 6:57 p.m. EST
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