{"id":220585,"date":"2025-08-21T04:29:36","date_gmt":"2025-08-21T09:29:36","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/08\/researchers-develop-novel-miniaturized-lidar-technology-based-on-cross-dual-microcomb"},"modified":"2025-08-21T04:29:36","modified_gmt":"2025-08-21T09:29:36","slug":"researchers-develop-novel-miniaturized-lidar-technology-based-on-cross-dual-microcomb","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/08\/researchers-develop-novel-miniaturized-lidar-technology-based-on-cross-dual-microcomb","title":{"rendered":"Researchers develop novel miniaturized lidar technology based on cross dual-microcomb"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/researchers-develop-novel-miniaturized-lidar-technology-based-on-cross-dual-microcomb3.jpg\"><\/a><\/p>\n<p>Optical frequency combs, as a time and frequency \u201cruler,\u201d have important applications in precision ranging. Conventional dual-comb ranging schemes utilize the optical Vernier effect to achieve long-distance measurements, and they typically require asynchronously secondary sampling, either after changing the repetition rates or swapping dual-comb roles.<\/p>\n<p>These approaches have a commonly overlooked issue: When considering real-time distance variations induced by target motion or atmospheric turbulence in practical measurement scenarios, the asynchronously secondary sampling will introduce substantial absolute distance measurement error, namely asynchronous measurement error (AME).<\/p>\n<p>In a study <a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.adt4252\" target=\"_blank\">published<\/a> in <i>Science Advances<\/i>, Prof. Zhang Wenfu\u2019s team from the Xi\u2019an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences proposed an on-chip cross dual-microcomb (CDMC) ranging method based on dispersion interferometry. This method resolves the AME issue by eliminating secondary measurements through one-shot spectral sampling of cross dual-microcomb carrying distance information in the frequency domain.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Optical frequency combs, as a time and frequency \u201cruler,\u201d have important applications in precision ranging. Conventional dual-comb ranging schemes utilize the optical Vernier effect to achieve long-distance measurements, and they typically require asynchronously secondary sampling, either after changing the repetition rates or swapping dual-comb roles. These approaches have a commonly overlooked issue: When considering real-time [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523],"tags":[],"class_list":["post-220585","post","type-post","status-publish","format-standard","hentry","category-computing"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/220585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=220585"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/220585\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=220585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=220585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=220585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}