{"id":570902,"date":"2023-10-13T08:43:22","date_gmt":"2023-10-13T12:43:22","guid":{"rendered":"https:\/\/www.rochester.edu\/newscenter\/?p=570902"},"modified":"2023-10-24T07:51:06","modified_gmt":"2023-10-24T11:51:06","slug":"drones-weak-value-amplification-photonic-chip-570902","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/drones-weak-value-amplification-photonic-chip-570902\/","title":{"rendered":"Photonic chips could give drones a lift when GPS is unavailable"},"content":{"rendered":"<h2 style=\"width: 85%; font-weight: bold; line-height: 135%; margin-bottom: 0.5em;\">Rochester researchers aim to leverage the quantum technique of weak value amplification to replace the gyroscopes in drones.<\/h2>\n<p>Researchers at <a href=\"https:\/\/www.rochester.edu\/\">University of Rochester<\/a> are developing photonic chips that could replace the gyroscopes currently used in unmanned aerial vehicles or drones, enabling them to fly where GPS signals are jammed or unavailable. Using a quantum technique called weak value amplification, the scientists aim to provide the same sensitivity level of bulk optical gyroscopes on small, handheld photonic chips, potentially transforming navigation for drones.<\/p>\n<p><a href=\"https:\/\/www.hajim.rochester.edu\/optics\/people\/faculty\/cardenas_jaime\/index.html\">Jaime Cardenas<\/a>, an associate professor at the <a href=\"https:\/\/www.hajim.rochester.edu\/optics\/index.html\">Institute of Optics<\/a>, received a <a href=\"https:\/\/www.nsf.gov\/awardsearch\/showAward?AWD_ID=2330328&amp;HistoricalAwards=false\">new National Science Foundation grant<\/a> to develop the chips through 2026. Cardenas says the optical fiber gyroscopes used in the most advanced drones today contain spools of fiber several kilometers long or have limited dynamic range.<\/p>\n<p>\u201cRight now, the sensitivity and stability of a gyroscope must be fundamentally traded off between its size and weight,\u201d he says. \u201cAs drones, UAVs, and satellites become smaller and more ubiquitous, the need for ultracompact navigation-grade gyroscopes will become critical. State-of-the-art miniaturized gyroscopes are compact and robust but suffer from a performance deficit that hinders their use in navigation.\u201d<\/p>\n<p>According to Cardenas, weak value amplification provides advantages over traditional methods because it boosts the signal of an interferometric measurement without the cost of amplifying several forms of technical noise. But previous demonstrations of weak value amplification have required complex lab setups with precise alignment; Cardenas strives to implement weak value amplification on a tiny photonic chip with a high-quality factor ring resonator.<\/p>\n<p>Cardenas\u2019 collaborators on the project include physicist Andrew Jordan, formerly a faculty member at Rochester and now at Chapman University. Cardenas says he will also work with the University\u2019s <a href=\"https:\/\/www.rochester.edu\/college\/kearnscenter\/\">David T. Kearns Center for Leadership and Diversity<\/a> to broaden the participation of underrepresented groups through research experiences for high school students from the Rochester City School District that spark their desire for a career in STEM.<\/p>\n<hr \/>\n<h3><strong>Read more<\/strong><\/h3>\n<div class=\"large-up-3\">\n<div class=\"column\" style=\"padding-left: 0px;\">\n<p><a href=\"https:\/\/www.rochester.edu\/newscenter\/quest-for-elusive-monolayers-just-got-a-lot-simpler-523782\/\"><img decoding=\"async\" style=\"margin-bottom: 10px;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2022\/05\/fea-monolayers.jpg\" alt=\"close up of a tiny sample of a square of polymer film.\" \/><strong>Quest for elusive monolayers just got a lot simpler<\/strong><\/a><\/p>\n<p><span style=\"font-size: .9em;\">Compared to long, tedious hours of scanning by undergraduates, a breakthrough technology can detect monolayers with 99.9 percent accuracy\u2014in far less time and at a fraction of the cost.<\/span><\/p>\n<\/div>\n<div class=\"column\" style=\"padding-left: 0px;\">\n<p><a href=\"https:\/\/www.rochester.edu\/newscenter\/new-photonic-chip-boosts-precision-optics-501802\/\"><img decoding=\"async\" style=\"margin-bottom: 10px;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2021\/11\/fea-cardenas-interferometer-chip.jpg\" alt=\"Closeup of tweezers grasping tiny chip.\" \/><strong>Tiny chip provides a big boost in precision optics<\/strong><\/a><\/p>\n<p><span style=\"font-size: .9em;\">Researchers at the Institute of Optics for first time distill novel interferometry into a photonic device.<\/span><\/p>\n<\/div>\n<div class=\"column\" style=\"padding-left: 0px;\">\n<p><a href=\"https:\/\/www.rochester.edu\/newscenter\/new-data-asteroid-surfaces-robotic-explorers-touchdown-safely-444942\/\"><img decoding=\"async\" style=\"margin-bottom: 10px;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2020\/07\/fea-osirisrextagprint-asteroid-surfaces.jpg\" alt=\"Illustration of OSIRIS-REx collecting samples on an asteroid surface.\" \/><strong>New data about asteroid surfaces will help explorers touch down safely<\/strong><\/a><\/p>\n<p><span style=\"font-size: .9em;\">Using sand, marbles, and mathematical modeling, Rochester researchers are improving the accuracy of data collected from the surfaces of asteroids.<\/span><\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rochester researchers aim to leverage the quantum technique of weak value amplification to replace the gyroscopes in drones.<\/p>\n","protected":false},"author":1242,"featured_media":570922,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[116],"tags":[18292,29502,18632,18652,9186],"class_list":["post-570902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sci-tech","tag-david-t-kearns-center-for-leadership-and-diversity","tag-featured-post-side","tag-hajim-school-of-engineering-and-applied-sciences","tag-institute-of-optics","tag-research-funding"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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