{"id":691,"date":"2022-06-23T02:32:28","date_gmt":"2022-06-23T02:32:28","guid":{"rendered":"https:\/\/beamq.com\/laser\/?p=691"},"modified":"2022-06-23T02:32:28","modified_gmt":"2022-06-23T02:32:28","slug":"ytterbium-laser","status":"publish","type":"post","link":"https:\/\/beamq.com\/laser\/ytterbium-laser\/","title":{"rendered":"Ytterbium Laser"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.rp-photonics.com\/ytterbium_doped_laser_gain_media.html\">Ytterbium <\/a>(Yb) is a chemical element belonging to the group of rare earth metals. In laser technology, it has acquired a prominent role in the form of the trivalent ion Yb3+, which is used as a laser-active dopant in a variety of host materials, including crystals, glasses and ceramics, also often in active optical fibers. It is often used in various types of high-power lasers and for wavelength-tunable solid-state lasers.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.rp-photonics.com\/ytterbium_doped_laser_gain_media.html\">Special Properties of Ytterbium-doped Gain Media<br><\/a>Ytterbium-doped laser crystals and glasses have a number of interesting properties, which differ from those of, e.g., neodymium-doped laser gain media:<\/p>\n\n\n\n<p>Special Properties of Ytterbium-doped Gain Media<\/p>\n\n\n\n<p>Ytterbium-doped laser crystals and glasses have a number of interesting properties, which differ from those of, e.g., neodymium-doped laser gain media:<\/p>\n\n\n\n<p>They have a very simple electronic level structure, with only one excited state manifold within reach from the ground-state manifold with near-infrared or visible photons.<\/p>\n\n\n\n<p>The quantum defect is always small, potentially allowing for very high power efficiencies of lasers and reducing thermal effects in high-power lasers.<\/p>\n\n\n\n<p>The simple electronic structure excludes excited-state absorption and also a variety of detrimental quenching processes.<\/p>\n\n\n\n<p>The gain bandwidth of the laser transitions is typically fairly large, compared with, e.g., neodymium-doped crystals. This allows for wide wavelength tuning ranges or for generating ultrashort pulses in mode-locked lasers.<\/p>\n\n\n\n<p>The upper-state lifetimes are relatively long (typically of the order of 1\u20132 ms), which is beneficial for Q switching and for pulsed amplifiers. However, it also implies substantially lower transition cross sections than neodymium-doped gain media, for example, and that is detrimental in various cases.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ytterbium (Yb) is a chemical element belonging to the group of rare earth metals. In laser technology, it has acquired a prominent role in the form of the trivalent ion Yb3+, which is used as a laser-active dopant in a variety of host materials, including crystals, glasses and ceramics, also often in active optical fibers. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":692,"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\/691"}],"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=691"}],"version-history":[{"count":1,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/691\/revisions"}],"predecessor-version":[{"id":693,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/691\/revisions\/693"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/media\/692"}],"wp:attachment":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/media?parent=691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/categories?post=691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/tags?post=691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}