{"id":369138,"date":"2024-05-29T20:48:30","date_gmt":"2024-05-29T20:48:30","guid":{"rendered":"\/forum\/forums\/topic\/modal-analysis-_finding-single-mode-waveguide-field-components\/"},"modified":"2024-05-29T20:48:30","modified_gmt":"2024-05-29T20:48:30","slug":"modal-analysis-_finding-single-mode-waveguide-field-components","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/modal-analysis-_finding-single-mode-waveguide-field-components\/","title":{"rendered":"Modal analysis _finding single mode waveguide field components"},"content":{"rendered":"<p>I am performing modal analysis using the Lumerical FDE solver on a rib waveguide structure (Z-cut LN) with the propagation direction along the y-axis. I am interested in finding a single-mode waveguide structure, and for this purpose, I am obtaining a 95% TE polarization fraction (Ex) for mode 1. However, for the same mode, when I observe Ey and Ez, the intensity of Ey is larger than that of Ez. Since the propagation direction is along y, Ey should be negligible or of the lowest intensity. Please provide comments, possible solutions, and opinions on this matter.<\/p>\n<p>Thank you,<\/p>\n<p>Mijan<span style=\"font-size: 14pt\"><img decoding=\"async\" title=\"Ez\" src=\"\/forum\/wp-content\/uploads\/sites\/2\/2024\/05\/29-05-2024-1717015492-Ez (2).jpg\" alt=\"\"><\/span><\/p>\n","protected":false},"template":"","class_list":["post-369138","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["65875","33648"],"_bbp_author_ip":["23.216.133.155"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["154"],"_bbp_topic_status":["unanswered"],"_bbp_topic_id":["369138"],"_bbp_forum_id":["27833"],"_bbp_engagement":["33648","65875"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["374433"],"_bbp_last_active_id":["374433"],"_bbp_last_active_time":["2024-07-31 10:05:50"]},"test":"mijanurkgpian-iitkgp-ac-in"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/369138","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/369138\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=369138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}