{"id":424405,"date":"2025-03-05T11:04:02","date_gmt":"2025-03-05T11:04:02","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/exporting-inverse-design-of-a-grating-to-gds\/"},"modified":"2025-03-05T11:04:02","modified_gmt":"2025-03-05T11:04:02","slug":"exporting-inverse-design-of-a-grating-to-gds","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/exporting-inverse-design-of-a-grating-to-gds\/","title":{"rendered":"Exporting Inverse Design of a Grating to GDS"},"content":{"rendered":"<p>&lt;p&gt;I&#8217;ve been following the online tutorial for the development of a grating coupler using inverse design: <a href=\"https:\/\/optics.ansys.com\/hc\/en-us\/articles\/360042800573-Inverse-Design-of-Grating-Coupler-2D\">Inverse Design of Grating Coupler (2D) &ndash; Ansys Optics<\/a> I&#8217;ve been through editing everything to suit my design but when it comes to the last step of exporting to GDS, it doesn&#8217;t seem to work. The GDS created gives the error pictures. I retried using the unchanged example and get the same issue with Klayout. I&#8217;ve tried importing the GDS back through Lumerical, and tried a different GDS software, no luck on either.&nbsp; Any idea&#8217;s what&#8217;s going wrong?&nbsp; Thanks.&nbsp; <img decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2025\/03\/05-03-2025-1741172624-mceclip0.png\" \/>&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-424405","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"I&#039;ve been following the online tutorial for the development of a grating coupler using inverse design: Inverse Design of Grating Coupler (2D) \u2013 Ansys Optics I&#039;ve been through editing everything to suit my design but when it comes to the last step of exporting to GDS, it doesn&#039;t seem to work. The GDS created gives\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/exporting-inverse-design-of-a-grating-to-gds\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 4.9.10\" \/>\n\t\t<meta property=\"og:locale\" content=\"en_US\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Ansys Learning Forum | Ansys Innovation Space\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Exporting Inverse Design of a Grating to GDS | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"I&#039;ve been following the online tutorial for the development of a grating coupler using inverse design: Inverse Design of Grating Coupler (2D) \u2013 Ansys Optics I&#039;ve been through editing everything to suit my design but when it comes to the last step of exporting to GDS, it doesn&#039;t seem to work. 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