{"id":390482,"date":"2024-10-19T06:52:48","date_gmt":"2024-10-19T06:52:48","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/designing-a-single-mode-fiber\/"},"modified":"2024-10-19T06:52:48","modified_gmt":"2024-10-19T06:52:48","slug":"designing-a-single-mode-fiber","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/designing-a-single-mode-fiber\/","title":{"rendered":"Designing a single mode fiber"},"content":{"rendered":"<p>&lt;p&gt;I designed a Lumerical Mode Solution rectangular Si waveguide with Si substrate and adjusted the width and thickness in order to achieve one TE mode. I want to now design a single mode fiber where the indices of the fiber core and cladding are 1.6 and 1.4. However I am still somewhat new to Lumerical and have never designed a fiber on it. I can use some advice on if I should take my existing design and tweak the geometry to make my fiber design while keeping the single mode, or should I just do a brand new design for the single mode fiber? In order to design the fiber, am I just creating two cylinders or circles with the core in between the cladding? Any advice is greatly appreciated. Thank you!&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/19-10-2024-1729320637-Forum1.PNG\" alt=\"\" width=\"807\" height=\"369\" \/>&lt;\/p&gt;&lt;p&gt;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/innovationspace.ansys.com\/forum\/wp-content\/uploads\/sites\/2\/2024\/10\/19-10-2024-1729320699-Forum2.PNG\" alt=\"\" width=\"799\" height=\"362\" \/>&lt;\/p&gt;&lt;p&gt;&nbsp;&lt;\/p&gt;<\/p>\n","protected":false},"template":"","class_list":["post-390482","topic","type-topic","status-publish","hentry","topic-tag-waveguide-2","topic-tag-fiber","topic-tag-LumericalMode-1"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_author_ip":["2600:8800:2488:5a00:881d:fc28:a5a:2254"],"_btv_view_count":["257"],"_bbp_topic_status":["unanswered"],"_bbp_subscription":["2592","458274"],"_bbp_topic_id":["390482"],"_bbp_forum_id":["27833"],"_bbp_engagement":["2592","458274"],"_bbp_voice_count":["2"],"_bbp_reply_count":["3"],"_bbp_last_reply_id":["390938"],"_bbp_last_active_id":["390938"],"_bbp_last_active_time":["2024-10-22 22:45:53"]},"test":"jiglesi1asu-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/390482","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\/390482\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=390482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}