{"id":461296,"date":"2018-04-10T05:57:14","date_gmt":"2018-04-10T09:57:14","guid":{"rendered":"http:\/\/spaceweekly.com\/?guid=df61cdf03fde9a5516830f5370252c44"},"modified":"2018-04-10T05:57:14","modified_gmt":"2018-04-10T09:57:14","slug":"low-bending-loss-waveguide-opens-the-avenue-to-downsizing-of-3-d-photonic-integrated-circuits","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=461296","title":{"rendered":"Low bending loss waveguide opens the avenue to downsizing of 3-D photonic integrated circuits"},"content":{"rendered":"<p>Femtosecond laser direct writing is a promising technology for the fabrication of photonic integrated chips mainly due to its intrinsic capability of three-dimensional (3-D) prototyping in transparent substrates. Currently, the difficulty in inducing large refractive index changes smoothly distributed in the laser-irradiated regions is the major obstacle for producing compact photonic integrated circuits (PICs). Recently, researchers in China proposed a solution to suppress the bend loss of the waveguide at small radii of curvatures by more than one order of magnitude, opening a new avenue to downsizing of 3-D photonic integrated circuits. Their work, titled &#8220;Suppression of bend loss in writing of three-dimensional optical waveguides with femtosecond laser pulses,&#8221; was published in Science China Physics, Mechanics &#038; Astronomy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Femtosecond laser direct writing is a promising technology for the fabrication of photonic integrated chips mainly due to its intrinsic capability of three-dimensional (3-D) prototyping in transparent substrates. Currently, the difficulty in inducing large refractive index changes smoothly distributed in the laser-irradiated regions is the major obstacle for producing compact photonic integrated circuits (PICs). Recently, researchers in China proposed a solution to suppress the bend loss of the waveguide at small radii of curvatures by more than one order of magnitude, opening a new avenue to downsizing of 3-D photonic integrated circuits. Their work, titled &#8220;Suppression of bend loss in writing of three-dimensional optical waveguides with femtosecond laser pulses,&#8221; was published in Science China Physics, Mechanics &amp; Astronomy.<\/p>\n","protected":false},"author":0,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-461296","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/461296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=461296"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/461296\/revisions"}],"predecessor-version":[{"id":461297,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/461296\/revisions\/461297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=461296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=461296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=461296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}