{"id":12357,"date":"2023-05-30T15:59:32","date_gmt":"2023-05-30T18:59:32","guid":{"rendered":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=12357"},"modified":"2023-05-30T15:59:32","modified_gmt":"2023-05-30T18:59:32","slug":"investigadores-crean-un-nuevo-tipo-de-laser","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=12357","title":{"rendered":"Investigadores crean un nuevo tipo de l\u00e1ser"},"content":{"rendered":"

Los cient\u00edficos de EPFL e IBM han creado un innovador l\u00e1ser sintonizable integrado h\u00edbrido, mediante la combinaci\u00f3n de niobato de litio y nitruro de silicio, que ofrece ruido de baja frecuencia y sintonizaci\u00f3n de longitud de onda r\u00e1pida. Este nuevo l\u00e1ser tiene aplicaciones prometedoras en LiDAR, telecomunicaciones y computaci\u00f3n cu\u00e1ntica debido a su combinaci\u00f3n \u00fanica de propiedades.<\/p>\n

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Researchers from\u00a0EPFL<\/a>\u00a0and\u00a0IBM<\/a>\u00a0have created a novel laser that could revolutionize optical ranging technology. This laser is constructed from lithium niobate, a material frequently utilized in optical modulators to regulate the frequency or intensity of light transmitted through a device.<\/p>\n

<\/span>Lithium niobate is highly valued for its ability to manage large amounts of optical power and its high \u201cPockels coefficient.\u201d This allows the material to alter its optical properties when an electric field is applied to it.<\/p>\n

The researchers achieved their breakthrough by combining lithium niobate with silicon nitride, which allowed them to produce a new type of hybrid integrated tunable laser. To do this, the team manufactured integrated circuits for light (\u201cphotonic integrated circuits\u201d) based on silicon nitride at EPFL, and then bonded them with lithium niobate wafers at IBM.<\/p>\n

\"\"
A chip developed in the study. Credit: Grigorii Likhachev (EPFL)<\/figcaption><\/figure>\n

The approach produced a laser with low-frequency noise (a measure of how stable the laser\u2019s frequency is) and simultaneously with fast wavelength tuning \u2013 both great qualities for a laser used in light detection and ranging (LiDAR) applications. Then they performed an optical ranging experiment where they used the laser to measure distances with high precision.<\/p>\n

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Beyond integrated lasers, the hybrid platform has the potential to realize integrated transceivers for telecommunications as well as microwave-optical transducers for use in\u00a0quantum computing<\/span>.<\/p>\n

\u201cWhat is remarkable about the result is that the laser simultaneously provides low phase noise and fast petahertz-per-second tuning, something that has never before been achieved with such a chip-scale integrated laser,\u201d says Professor Tobias J. Kippenberg, who led the EPFL side of the project.<\/p>\n

Reference: \u201cUltrafast tunable lasers using lithium niobate integrated photonics\u201d by Viacheslav Snigirev, Annina Riedhauser, Grigory Lihachev, Mikhail Churaev, Johann Riemensberger, Rui Ning Wang, Anat Siddharth, Guanhao Huang, Charles M\u00f6hl, Youri Popoff, Ute Drechsler, Daniele Caimi, Simon H\u00f6nl, Junqiu Liu, Paul Seidler and Tobias J. Kippenberg, 15 March 2023,\u00a0Nature<\/em>.
\nDOI: 10.1038\/s41586-023-05724-2<\/a><\/p>\n

The study was funded by the Horizon 2020 Framework Programme, the Swiss National Science Foundation, and the Air Force Office of Scientific Research.<\/p>\n

The chip samples were fabricated in the EPFL center of MicroNanoTechnology (CMi) and the Binnig and Rohrer Nanotechnology Center (BRNC) at IBM Research.<\/p>\n<\/div>\n<\/article>\n

Fuente:<\/strong> https:\/\/scitechdaily.com<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Los cient\u00edficos de EPFL e IBM han creado un innovador l\u00e1ser sintonizable integrado h\u00edbrido, mediante la combinaci\u00f3n de niobato de litio y nitruro de silicio,… <\/p>\n","protected":false},"author":1,"featured_media":12358,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2,23],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/12357"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12357"}],"version-history":[{"count":1,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/12357\/revisions"}],"predecessor-version":[{"id":12360,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/12357\/revisions\/12360"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/media\/12358"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}