{"id":213298,"date":"2022-04-29T08:42:44","date_gmt":"2022-04-29T08:42:44","guid":{"rendered":"\/forum\/forums\/reply\/213298\/"},"modified":"2022-04-29T08:42:44","modified_gmt":"2022-04-29T08:42:44","slug":"213298","status":"publish","type":"reply","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/","title":{"rendered":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver?"},"content":{"rendered":"<p>&#8220;This depends on customer&#8217;s goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.&#8221; What would be design constraints if I am designing to couple to fiber?  I understand that smaller waveguide leads to confined mode but then again wouldn&#8217;t E field of mode be leaking outside the core to clad region, decreasing Neff? So my design goal is to design waveguide with biggest core size which can propagate only one mode TE?<br \/>\nI have two more doubts:<br \/>\nWe design MZM waveguides for single mode(preferable TE), right? Now considering the direction of propagation is in Z direction, for TE Electric field will be either in X or Y direction. In simulation which TE I am looking for, is it TE polarized in X or Y? Because I think TE polarization fraction is close to 100% only for TE in X direction in Lumerical. So wouldn&#8217;t it be wrong to say that TE polarization fraction should be 100% for TE polarized light, I mean it could be Y polarized also.<br \/>\nWhat is the purpose of TE\/TM fraction? suppose its value is x\/y so x should be close to 100(most of the power in electric field should be in transverse direction) but what about y field? What is the significance of this value?<\/p>\n","protected":false},"template":"","class_list":["post-213298","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=\"&quot;This depends on customer&#039;s goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.&quot; What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn&#039;t E field of mode be leaking outside the core to\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/\" \/>\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=\"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum\" \/>\n\t\t<meta property=\"og:description\" content=\"&quot;This depends on customer&#039;s goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.&quot; What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn&#039;t E field of mode be leaking outside the core to\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-04-29T08:42:44+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-04-29T08:42:44+00:00\" \/>\n\t\t<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n\t\t<meta name=\"twitter:title\" content=\"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum\" \/>\n\t\t<meta name=\"twitter:description\" content=\"&quot;This depends on customer&#039;s goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.&quot; What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn&#039;t E field of mode be leaking outside the core to\" \/>\n\t\t<script type=\"application\/ld+json\" class=\"aioseo-schema\">\n\t\t\t{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/213298\\\/#breadcrumblist\",\"itemListElement\":[{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\",\"nextItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/213298\\\/#listItem\",\"name\":\"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver?\"}},{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/213298\\\/#listItem\",\"position\":2,\"name\":\"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver?\",\"previousItem\":{\"@type\":\"ListItem\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum#listItem\",\"name\":\"Home\"}}]},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/213298\\\/#webpage\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/213298\\\/\",\"name\":\"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum\",\"description\":\"\\\"This depends on customer's goal. Some may want to have different result, eg, to couple with other waveguide\\\/fiber etc.\\\" What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn't E field of mode be leaking outside the core to\",\"inLanguage\":\"en-US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/forums\\\/reply\\\/213298\\\/#breadcrumblist\"},\"datePublished\":\"2022-04-29T08:42:44+00:00\",\"dateModified\":\"2022-04-29T08:42:44+00:00\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#website\",\"url\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/\",\"name\":\"Ansys Learning Forum\",\"description\":\"Ansys Innovation Space\",\"inLanguage\":\"en-US\",\"publisher\":{\"@id\":\"https:\\\/\\\/innovationspace.ansys.com\\\/forum\\\/#organization\"}}]}\n\t\t<\/script>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum","description":"\"This depends on customer's goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.\" What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn't E field of mode be leaking outside the core to","canonical_url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/#breadcrumblist","itemListElement":[{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","position":1,"name":"Home","item":"https:\/\/innovationspace.ansys.com\/forum","nextItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/#listItem","name":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver?"}},{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/#listItem","position":2,"name":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver?","previousItem":{"@type":"ListItem","@id":"https:\/\/innovationspace.ansys.com\/forum#listItem","name":"Home"}}]},{"@type":"Organization","@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization","name":"Ansys Learning Forum","description":"Ansys Innovation Space","url":"https:\/\/innovationspace.ansys.com\/forum\/"},{"@type":"WebPage","@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/#webpage","url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/","name":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum","description":"\"This depends on customer's goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.\" What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn't E field of mode be leaking outside the core to","inLanguage":"en-US","isPartOf":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#website"},"breadcrumb":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/#breadcrumblist"},"datePublished":"2022-04-29T08:42:44+00:00","dateModified":"2022-04-29T08:42:44+00:00"},{"@type":"WebSite","@id":"https:\/\/innovationspace.ansys.com\/forum\/#website","url":"https:\/\/innovationspace.ansys.com\/forum\/","name":"Ansys Learning Forum","description":"Ansys Innovation Space","inLanguage":"en-US","publisher":{"@id":"https:\/\/innovationspace.ansys.com\/forum\/#organization"}}]},"og:locale":"en_US","og:site_name":"Ansys Learning Forum | Ansys Innovation Space","og:type":"article","og:title":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum","og:description":"&quot;This depends on customer's goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.&quot; What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn't E field of mode be leaking outside the core to","og:url":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/","article:published_time":"2022-04-29T08:42:44+00:00","article:modified_time":"2022-04-29T08:42:44+00:00","twitter:card":"summary_large_image","twitter:title":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver? | Ansys Learning Forum","twitter:description":"&quot;This depends on customer's goal. Some may want to have different result, eg, to couple with other waveguide\/fiber etc.&quot; What would be design constraints if I am designing to couple to fiber? I understand that smaller waveguide leads to confined mode but then again wouldn't E field of mode be leaking outside the core to"},"aioseo_meta_data":{"post_id":"213298","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"content","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":true,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":"default","schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"limit_modified_date":false,"created":"2024-10-27 11:53:39","updated":"2026-08-19 13:46:54","ai":null,"breadcrumb_settings":null,"seo_analyzer_scan_date":null},"aioseo_breadcrumb":"<div class=\"aioseo-breadcrumbs\"><span class=\"aioseo-breadcrumb\">\n\t\t\t<a href=\"https:\/\/innovationspace.ansys.com\/forum\" title=\"Home\">Home<\/a>\n\t\t<\/span><span class=\"aioseo-breadcrumb-separator\">&raquo;<\/span><span class=\"aioseo-breadcrumb\">\n\t\t\tReply To: [Please help] Few doubts in waveguide simulation using FDE solver?\n\t\t<\/span><\/div>","aioseo_breadcrumb_json":[{"label":"Home","link":"https:\/\/innovationspace.ansys.com\/forum"},{"label":"Reply To: [Please help] Few doubts in waveguide simulation using FDE solver?","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/reply\/213298\/"}],"acf":[],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/213298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/reply"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/replies\/213298\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=213298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}