{"id":367995,"date":"2024-05-22T07:17:35","date_gmt":"2024-05-22T07:17:35","guid":{"rendered":"\/forum\/forums\/reply\/367995\/"},"modified":"2024-05-22T07:17:35","modified_gmt":"2024-05-22T07:17:35","slug":"367995","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/367995\/","title":{"rendered":"Reply To: Loss vs. waveguide bend radius in Lumerical FEEM"},"content":{"rendered":"<p>&lt;p&gt;Hi Guilin,&lt;\/p&gt;&lt;p&gt;&nbsp;The problem I was facing has been resolved. It seems I did not have to increase the bent simulation region too much. Inorder to check the fields, I had to check for individual parameter values instead of giving a sweep.&lt;\/p&gt;&lt;p&gt;1) I noticed that the mode number keeps changing for a particular mode (for different bent radius). So, the plot obtained while sweeping the parameter contains loss values of different modes (not necessarily the mode of interest).&lt;\/p&gt;&lt;p&gt;2) I tried &#8216;lock mesh&#8217; option available in FEEM. It prevented the sweep from running successfully.&lt;\/p&gt;&lt;p&gt;3) I used larger value in &#8216;polynomial order&#8217; in mesh settings, and checked the meshing. It did not result in any change whichever value I chose.&lt;\/p&gt;&lt;p&gt;I would also like to bring to your notice that in the example of bent waveguide in FEEM (https:\/\/optics.ansys.com\/hc\/en-us\/articles\/4409707153811-Bent-Waveguide-FEEM), the script &#8220;waveguide_bend_sweep.lsf&#8221; displays results in dB\/cm (while the values are in SI unit).&lt;\/p&gt;&lt;p&gt;Thank you.&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-367995","reply","type-reply","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=\"Hi Guilin, The problem I was facing has been resolved. It seems I did not have to increase the bent simulation region too much. 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