{"id":159247,"date":"2021-06-07T16:49:43","date_gmt":"2021-06-07T16:49:43","guid":{"rendered":"\/forum\/forums\/topic\/issues-exporting-to-gds-from-lumerical\/"},"modified":"2021-06-16T02:54:57","modified_gmt":"2021-06-16T02:54:57","slug":"issues-exporting-to-gds-from-lumerical","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/issues-exporting-to-gds-from-lumerical\/","title":{"rendered":"Issues Exporting to GDS From Lumerical"},"content":{"rendered":"
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Hello,<\/p>\n

I have run the 3D inverse design of grating coupler example from (https:\/\/support.lumerical.com\/hc\/en-us\/articles\/1500000306621-Inverse-design-of-grating-coupler-3D-<\/a>). I have successully run everything with my own parameters, however I am running into issues with the resulting GDS file that is created.<\/p>\n

When i export my grating design with the example code to GDS the resultant geometry is off by very small amounts in measurements. for instance, I ran the example twice, my waveguide width is 1450nm. but as you can see in the following screenshots from KLayout GDS Viewer, the waveguides did not export to this exact dimension.<\/p>\n

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\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-159247","topic","type-topic","status-closed","hentry","topic-tag-export","topic-tag-gds-1","topic-tag-gdsii-1","topic-tag-lumerical"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t