{"id":198,"date":"2021-09-29T01:11:24","date_gmt":"2021-09-29T01:11:24","guid":{"rendered":"https:\/\/beamq.com\/laser\/?p=198"},"modified":"2021-11-12T01:13:09","modified_gmt":"2021-11-12T01:13:09","slug":"aom-acousto-optic-modulator-news","status":"publish","type":"post","link":"https:\/\/beamq.com\/laser\/aom-acousto-optic-modulator-news\/","title":{"rendered":"AOM acousto optic modulator News"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.beamq.com\/aom-modulator-c-192.html\">fiber coupled aom<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"802\" height=\"624\" src=\"https:\/\/beamq.com\/laser\/wp-content\/uploads\/2021\/11\/fiber-coupled-aom.png\" alt=\"\" class=\"wp-image-467\"\/><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.nature.com\/articles\/s41566-020-00711-9\">Electrically driven acousto-optics and broadband non-reciprocity in silicon photonics.<\/a><\/p>\n\n\n\n<p>Emerging technologies based on tailorable photon\u2013phonon interactions promise new capabilities ranging from high-fidelity information processing to non-reciprocal optics and quantum state control. However, many existing realizations of such light\u2013sound couplings involve unconventional materials and fabrication schemes challenging to co-implement with scalable integrated photonic circuitry. Here, we demonstrate direct acousto-optic modulation within silicon waveguides using electrically driven surface acoustic waves (SAWs). By co-integrating electromechanical SAW transducers with a standard silicon-on-insulator photonic platform, we harness silicon\u2019s strong elasto-optic effect to create travelling-wave phase and single-sideband amplitude modulators from 1 to 5\u2009GHz, with index modulation strengths comparable to electro-optic technologies. Extending this non-local interaction to centimetre scales, we demonstrate non-reciprocal modulation with operation bandwidths of &gt;100\u2009GHz and insertion losses of &lt;0.6\u2009dB. This acousto-optic platform is compatible with complementary metal\u2013oxide\u2013semiconductor fabrication processes and existing silicon photonic device architectures, opening the door to flexible, low-loss modulators and non-magnetic optical isolators and circulators in integrated photonic circuits.<\/p>\n\n\n\n<p><a href=\"https:\/\/link.springer.com\/article\/10.1134\/S0020441220050267\">Acousto-Optic Devices Based on Multibeam Diffraction<\/a><\/p>\n\n\n\n<p>The multibeam acousto-optical Bragg diffraction of laser radiation is considered. This is splitting of an initial beam into several independently controlled beams (channels) without substantial light-power losses. Practically significant relationships that determine the conditions for implementing the multibeam diffraction and its main parameters have been obtained. It is shown that the necessary condition is the form of control radio signal that is close to a frequency (phase) modulated signal. Experimental studies were conducted on a polarization-insensitive acousto-optic deflector based on a paratellurite crystal. Practical applications of the multibeam diffraction are shown: laser image deposition, multichannel transmission (switching) of optical information, and the formation of the laser-beam profile.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>fiber coupled aom Electrically driven acousto-optics and broadband non-reciprocity in silicon photonics. Emerging technologies based on tailorable photon\u2013phonon interactions promise new capabilities ranging from high-fidelity information processing to non-reciprocal optics and quantum state control. However, many existing realizations of such light\u2013sound couplings involve unconventional materials and fabrication schemes challenging to co-implement with scalable integrated photonic [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/198"}],"collection":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/comments?post=198"}],"version-history":[{"count":4,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/198\/revisions"}],"predecessor-version":[{"id":468,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/198\/revisions\/468"}],"wp:attachment":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/media?parent=198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/categories?post=198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/tags?post=198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}