{"id":2260,"date":"2023-04-12T01:32:04","date_gmt":"2023-04-12T01:32:04","guid":{"rendered":"https:\/\/beamq.com\/laser\/?p=2260"},"modified":"2023-04-12T01:32:04","modified_gmt":"2023-04-12T01:32:04","slug":"visible-range-tunable-diode-laser-635nm-636nm","status":"publish","type":"post","link":"https:\/\/beamq.com\/laser\/visible-range-tunable-diode-laser-635nm-636nm\/","title":{"rendered":"Visible Range Tunable Diode Laser 635nm 636nm"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.beamq.com\/visible-range-tunable-diode-laser-636-nm-%C3%83%E2%80%9A%C3%82%C2%B1-1nm-p-1580.html\">Visible Range Tunable Diode Laser 636 nm +- 1nm<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>1.Mode-hop free fine tuning range of +50-70 pm from the center wavelength<br>2.Mode-hop free wide tuning range of at least 3 nm<br>3.Center wavelength of operation at 636 nm +1nm<br>4.Free-space output power of at least 7 mW at any wavelength within the tuning range<br>5.The laser head shall have an FC\/APC PM fiber connector attached to it<br>6.Fiber-coupled output power of at least 2 mW at any wavelength within the tuning range<br>7.Tuning speed of at least 5 nm\/s<br>8.Linewidth of at least 200 kHz<br>9.Wavelength stability of 1-3 pm over 1 hour<\/p>\n\n\n\n<ol start=\"10\"><li>Power variations of 0.5-1.5% over 1 hour<\/li><li>Better than 30 dB isolation<\/li><li>The laser unit shall have a wide range motorized tuning mechanism<\/li><li>The laser unit shall have a fine range piezo tuning mechanism<\/li><li>The entire system shall include a low-noise controller<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"700\" height=\"490\" src=\"https:\/\/beamq.com\/laser\/wp-content\/uploads\/2023\/04\/Visible-Range-Tunable-Diode-Laser-635nm-636nm.jpg\" alt=\"\" class=\"wp-image-2261\"\/><\/figure>\n\n\n\n<p>What are Tunable Lasers? Tunable DPSS lasers use an Optical Parametric Oscillator (OPO) to produce tunable wavelengths in the 410 \u2013 2300 nm range. This laser offers nanosecond (ns) pulse widths and a variable repetition rate up to 100 Hz, with up to 5 mJ pulse energy in the visible range.<\/p>\n\n\n\n<p>Most laser diodes can be tuned over a few nanometers by varying the junction temperature, but some special types such as external-cavity diode lasers and distributed Bragg reflector lasers can be tuned over 40 nm and more with additional means such as an intracavity diffraction grating.<\/p>\n\n\n\n<p>The method uses a semiconductor laser as a coherent light source, and uses a cavity mirror with high reflectivity to form a resonant cavity to achieve an extremely long effective absorption optical path, and detects the target gas by detecting the time-integrated light intensity passing through the cavity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Visible Range Tunable Diode Laser 636 nm +- 1nm 1.Mode-hop free fine tuning range of +50-70 pm from the center wavelength2.Mode-hop free wide tuning range of at least 3 nm3.Center wavelength of operation at 636 nm +1nm4.Free-space output power of at least 7 mW at any wavelength within the tuning range5.The laser head shall have [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2261,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[12],"tags":[163],"_links":{"self":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/2260"}],"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=2260"}],"version-history":[{"count":1,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/2260\/revisions"}],"predecessor-version":[{"id":2262,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/posts\/2260\/revisions\/2262"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/media\/2261"}],"wp:attachment":[{"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/media?parent=2260"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/categories?post=2260"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beamq.com\/laser\/wp-json\/wp\/v2\/tags?post=2260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}