{"id":174,"date":"2025-08-22T15:00:46","date_gmt":"2025-08-22T13:00:46","guid":{"rendered":"https:\/\/logbooks.ifosim.org\/oscar\/?p=174"},"modified":"2025-08-22T15:00:46","modified_gmt":"2025-08-22T13:00:46","slug":"coming-soon-sidebands-signals","status":"publish","type":"post","link":"https:\/\/logbooks.ifosim.org\/oscar\/2025\/08\/22\/coming-soon-sidebands-signals\/","title":{"rendered":"Coming soon: sidebands signals"},"content":{"rendered":"\n<p>For the moment, it is only rather experimental in OSCAR but I added a new feature: generation of the sidebands from a mirror with a transverse oscillating motion. The mirror has a small amplitude displacement with respect to the laser wavelength and so a pair of sidebands will be created upon reflection (at the frequency of the oscillating mirror).<\/p>\n\n\n\n<p>Example for a cavity similar to the arms of Advanced Virgo, only one line is added to the code to mention that the mirror is oscillating:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>IM = Interface(G1,'RoC',1420,'CA',0.33,'T',0.04);\n\nEM = Interface(G1,'RoC',1683,'CA',0.33,'T',0.1E-6);\nEM = Add_Vibration(EM,'Amplitude',1E-9,'Frequency',1E0);\n\nArm_cavity = Cavity1(IM,EM,3000,E_input);<\/code><\/pre>\n\n\n\n<p> And then the simulations is run as usual. If we scan the oscillating frequency, we could find the classical picture that the cavity behaves as a low pass filter (outside the FSRs):<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"757\" src=\"https:\/\/logbooks.ifosim.org\/oscar\/wp-content\/uploads\/sites\/6\/2025\/08\/Results-1024x757.png\" alt=\"\" class=\"wp-image-175\" style=\"width:630px;height:auto\" srcset=\"https:\/\/logbooks.ifosim.org\/oscar\/wp-content\/uploads\/sites\/6\/2025\/08\/Results-1024x757.png 1024w, https:\/\/logbooks.ifosim.org\/oscar\/wp-content\/uploads\/sites\/6\/2025\/08\/Results-300x222.png 300w, https:\/\/logbooks.ifosim.org\/oscar\/wp-content\/uploads\/sites\/6\/2025\/08\/Results-768x568.png 768w, https:\/\/logbooks.ifosim.org\/oscar\/wp-content\/uploads\/sites\/6\/2025\/08\/Results.png 1106w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<p>Et voil\u00e0!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For the moment, it is only rather experimental in OSCAR but I added a new feature: generation of the sidebands from a mirror with a transverse oscillating motion. The mirror has a small amplitude displacement with respect to the laser wavelength and so a pair of sidebands will be created upon reflection (at the frequency [&hellip;]<\/p>\n","protected":false},"author":67,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ssl_alp_hide_revisions":false,"footnotes":"","ssl_alp_hide_crossreferences_to":false},"categories":[25],"tags":[21],"ssl-alp-inventory-item":[],"ssl-alp-coauthor":[12],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-simulations","tag-new_feature","ssl-alp-unread-flag-ssl-alp-unread-flag-aaron-jonesligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-agreennikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-alexander-adamligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-andreas-freiseligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-anna-greenligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-antoine-amyligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-bas-swinkelsligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-camilla-derossiligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-catalina-ana-miritesculigo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-daniela-pascucciligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-davidgnikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-eleonora-capocasaligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-enzo-tapialigo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-enzotnikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-hiro-yamamotoligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-jacques-dingligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-jonathan-perryligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-jperrynikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-kenny-mocligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-kevin-kunsligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-maddalena-mantovaniligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-michele-valentiniligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-mischa-salleligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-mkolknikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-monica-seglar-arroyoligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-msalle","ssl-alp-unread-flag-ssl-alp-unread-flag-mvalentinikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-nikhil-mukundligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-p70081609unimaas-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-paul-stevensligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-paulvalentin-hapkeligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-riccardo-maggioreligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-sebastslnikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-stopic","ssl-alp-unread-flag-ssl-alp-unread-flag-tschoonnikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-vaishali-adyaligo-org","ssl-alp-unread-flag-ssl-alp-unread-flag-yuefangnikhef-nl","ssl-alp-unread-flag-ssl-alp-unread-flag-yuhang-zhao1ligo-org"],"_links":{"self":[{"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/users\/67"}],"replies":[{"embeddable":true,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/comments?post=174"}],"version-history":[{"count":2,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":177,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/posts\/174\/revisions\/177"}],"wp:attachment":[{"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/media?parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/categories?post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/tags?post=174"},{"taxonomy":"ssl-alp-inventory-item","embeddable":true,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/ssl-alp-inventory-item?post=174"},{"taxonomy":"ssl-alp-coauthor","embeddable":true,"href":"https:\/\/logbooks.ifosim.org\/oscar\/wp-json\/wp\/v2\/ssl-alp-coauthor?post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}