{"id":3453,"date":"2017-10-11T09:41:31","date_gmt":"2017-10-11T16:41:31","guid":{"rendered":"http:\/\/www.teamwavelength.com\/maintenance\/?page_id=3453"},"modified":"2018-02-08T09:56:01","modified_gmt":"2018-02-08T17:56:01","slug":"february-2015","status":"publish","type":"page","link":"https:\/\/www.teamwavelength.com\/maintenance\/company-info\/newsletter\/february-2015\/","title":{"rendered":"LASER \/ TEC CONNECT February 2015"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row][vc_column][vc_single_image image=&#8221;3577&#8243; img_size=&#8221;full&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text]\n<h2><a href=\"https:\/\/spie.org\/conferences-and-exhibitions\/photonics-west?SSO=1\">Photonics West 2015<\/a><\/h2>\n[\/vc_column_text][vc_column_text]You are invited to visit our booth (#2406) at Photonics West Feb. 10-12 in San Francisco. The new Low Noise QCL Laboratory Instrument will be available for hands-on operation.\u00a0 We are also hosting a\u00a0<a href=\"http:\/\/spie.org\/PW\/productdemonstrations\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color: #018000;\">demonstration\u00a0<\/span><\/a>of the new QCL Laboratory instrument Feb. 10 at 10:30 in Demo Area 1 in the South Hall. We will be showing a wide range of compact temperature control solutions: efficient PWM control in the WTCP model (up to 5\u00a0A), high stability in the WTC controller (up to 2\u00a0A), low cost in the WHY controller (up to 2\u00a0A).<\/p>\n<p>Our team of engineers would love the opportunity to talk with you about your application. Feel free to\u00a0<a href=\"mailto:pw15@teamwavelength.com\"><span style=\"color: #018000;\">make an appointment<\/span><\/a>\u00a0ahead of time if you&#8217;d like to look more in-depth at your project.[\/vc_column_text][mk_button dimension=&#8221;flat&#8221; corner_style=&#8221;rounded&#8221; size=&#8221;medium&#8221; letter_spacing=&#8221;1&#8243; url=&#8221;http:\/\/www.spie.org\/x2584.xml&#8221; target=&#8221;_blank&#8221; bg_color=&#8221;#000000&#8243;]Learn More[\/mk_button][\/vc_column][vc_column width=&#8221;1\/2&#8243;][vc_single_image image=&#8221;3455&#8243; img_size=&#8221;500&#215;500&#8243; alignment=&#8221;center&#8221;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1507146836113{margin-top: 5px !important;background-color: #000000 !important;}&#8221;][vc_column width=&#8221;3\/4&#8243;][vc_empty_space height=&#8221;12px&#8221;][mk_fancy_title color=&#8221;#ffffff&#8221; size=&#8221;22&#8243; force_font_size=&#8221;true&#8221; size_smallscreen=&#8221;20&#8243; size_tablet=&#8221;18&#8243; size_phone=&#8221;16&#8243; txt_transform=&#8221;uppercase&#8221; margin_top=&#8221;10&#8243; font_family=&#8221;none&#8221;]Subscribe to our newsletter for tips, techniques &amp; product updates.[\/mk_fancy_title][\/vc_column][vc_column width=&#8221;1\/4&#8243;][mk_button dimension=&#8221;flat&#8221; corner_style=&#8221;rounded&#8221; size=&#8221;medium&#8221; url=&#8221;http:\/\/teamwavelength.us4.list-manage.com\/subscribe?u=e683bb028455c6da2682e79a6&amp;id=cb59ea9375&#8243; target=&#8221;_blank&#8221; align=&#8221;center&#8221; margin_top=&#8221;15&#8243;]Subscribe [\/mk_button][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;22px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;3456&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; onclick=&#8221;custom_link&#8221; link=&#8221;now-available-intellitune-intelligent-autotune-integrated-with-the-tc-lab-series-instruments\/&#8221;][vc_column_text]\n<h2><a href=\"http:\/\/www.teamwavelength.com\/maintenance\/product\/qcl500-laboratory-series-500-ma-qcl-driver-instrument\/\">Case Study: Low Voltage Quantum Cascade Lasers<\/a><\/h2>\n[\/vc_column_text][vc_column_text]Several newer Quantum Cascade Lasers are operating at lower voltages, some as low as 10 V.\u00a0 Our clients have successfully and safely operated these with both the\u00a0<a href=\"\/product-category\/qc-laser-drivers\/\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color: #018000;\">QCL OEM<\/span><\/a>\u00a0drivers and the\u00a0<span style=\"color: #018000;\"><a href=\"\/product-category\/qc-laser-drivers\/\" target=\"_blank\" rel=\"noopener noreferrer\">QCL LAB<\/a>\u00a0<\/span>drivers.<\/p>\n<p>With the QCL LAB driver, you simply reduce the Voltage Limit on the LIMIT screen (instructions are in the\u00a0<a href=\"http:\/\/www.teamwavelength.com\/maintenance\/download\/Datasheets\/qcl-lab.pdf#page=25\" class=\"mtli_attachment mtli_pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"color: #018000;\">User Guide, page 25<\/span><\/a>). With the QCL OEM, the safety circuits are hard-wired. Request the QCL OEM driver of the appropriate current level and Product Variation 48 (PV048) to operate the QCL OEM with an 11\u00a0V QCL limit. Other product variations are possible. Contact your Applications Engineer to discuss your application and how we could reduce your cost or assembly time.[\/vc_column_text][mk_button dimension=&#8221;flat&#8221; corner_style=&#8221;rounded&#8221; size=&#8221;medium&#8221; letter_spacing=&#8221;1&#8243; url=&#8221;\/product\/qcl500-laboratory-series-500-ma-qcl-driver-instrument\/&#8221;]Learn More[\/mk_button][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;3457&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; onclick=&#8221;custom_link&#8221; link=&#8221;\/product\/tc10-lab-series-10a-temperature-control-instrument\/&#8221;][vc_column_text]\n<h2>Low Noise Drive for Laser Diodes<\/h2>\n[\/vc_column_text][vc_column_text]The new QCL Laboratory instrument offers the lowest noise operation of any commercially available driver. This enables much lower detection thresholds in materials sensing systems.<\/p>\n<p>The QCL driver can also be used with Laser Diodes &#8211; if the anode of the Laser Diode is, or can be, grounded and it is operated in constant current mode.<\/p>\n<p>What would low noise Laser Diode operation enable for your application?<\/p>\n<ul>\n<li>Better wavelength stability?<\/li>\n<li>Better signal to noise ratio?<\/li>\n<li>Better repeatability between scans?<\/li>\n<\/ul>\n<p><a href=\"mailto:Sales@teamwavelength.com?subject=Low%20Noise%20Laser%20Diode%20Driver\">Let us know<\/a>\u00a0how you can improve your system measurements with reduced electrical noise.[\/vc_column_text][mk_button dimension=&#8221;flat&#8221; corner_style=&#8221;rounded&#8221; size=&#8221;medium&#8221; letter_spacing=&#8221;1&#8243;]Learn More[\/mk_button][\/vc_column][vc_column width=&#8221;1\/3&#8243;][vc_single_image image=&#8221;3458&#8243; img_size=&#8221;full&#8221; alignment=&#8221;center&#8221; onclick=&#8221;custom_link&#8221; link=&#8221;\/support\/applications\/&#8221;][vc_column_text]\n<h2>Using the Compliance Voltage Specification<\/h2>\n[\/vc_column_text][vc_column_text]Most of our drivers and controllers are current sources. This means the current level is the focus of the control system. The voltage across the output device (laser diode, quantum cascade laser, thermoelectric) will develop according to Ohm&#8217;s Law: <strong>Voltage = Current * Impedance.<\/strong><br \/>\nThe voltage varies with the resistance of the load. <strong>The current source does not force a particular voltage across the output device.<\/strong> The Compliance Voltage specification of a current source indicates the maximum voltage that can be provided to the output device at full current, not the voltage that will be delivered. For example, when driving a thermoelectric, the impedance can be estimated by the constant temperature V-I curve (see image above). If your thermoelectric needs 10 V at 4 A, then its impedance is roughly 2.5 Ohms (10 V \/ 4 A). If the controller can only provide up to 5 V at 4 A, the output will be Compliance Voltage limited. Again, Ohm&#8217;s Law rules. 5 V = IMAX * 2.5 Ohms; so IMAX would be limited to about 2 A. Pick a controller or driver with a compliance voltage large enough to support your output device at the desired operating current.[\/vc_column_text][mk_button dimension=&#8221;flat&#8221; corner_style=&#8221;rounded&#8221; size=&#8221;medium&#8221; letter_spacing=&#8221;1&#8243;]Learn More[\/mk_button][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;22px&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/6&#8243;][\/vc_column][vc_column width=&#8221;2\/3&#8243;][vc_column_text]\n<p style=\"text-align: center;\">We invite you to contribute topic suggestions, questions, and general feedback. Wavelength will incorporate as much reader input as possible.<br \/>\nClick to\u00a0<a href=\"mailto:editor@teamwavelength.com\">Submit<\/a><\/p>\n[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][vc_row css=&#8221;.vc_custom_1507146836113{margin-top: 5px !important;background-color: #000000 !important;}&#8221;][vc_column width=&#8221;3\/4&#8243;][vc_empty_space height=&#8221;12px&#8221;][mk_fancy_title color=&#8221;#ffffff&#8221; size=&#8221;22&#8243; force_font_size=&#8221;true&#8221; size_smallscreen=&#8221;20&#8243; size_tablet=&#8221;18&#8243; size_phone=&#8221;16&#8243; txt_transform=&#8221;uppercase&#8221; margin_top=&#8221;10&#8243; font_family=&#8221;none&#8221;]Subscribe to our newsletter for tips, techniques &amp; product updates.[\/mk_fancy_title][\/vc_column][vc_column width=&#8221;1\/4&#8243;][mk_button dimension=&#8221;flat&#8221; corner_style=&#8221;rounded&#8221; size=&#8221;medium&#8221; url=&#8221;http:\/\/teamwavelength.us4.list-manage.com\/subscribe?u=e683bb028455c6da2682e79a6&amp;id=cb59ea9375&#8243; target=&#8221;_blank&#8221; align=&#8221;center&#8221; margin_top=&#8221;15&#8243;]Subscribe [\/mk_button][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_single_image image=&#8221;3577&#8243; img_size=&#8221;full&#8221;][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/2&#8243;][vc_column_text] Photonics West 2015 [\/vc_column_text][vc_column_text]You are invited to visit our booth (#2406) at Photonics West Feb. 10-12 in San Francisco. The new Low Noise QCL Laboratory Instrument will be available for hands-on operation.\u00a0 We are also hosting a\u00a0demonstration\u00a0of the new QCL Laboratory instrument Feb. 10 at 10:30 in Demo Area 1 in [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"parent":1849,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-3453","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/pages\/3453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/comments?post=3453"}],"version-history":[{"count":5,"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/pages\/3453\/revisions"}],"predecessor-version":[{"id":5394,"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/pages\/3453\/revisions\/5394"}],"up":[{"embeddable":true,"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/pages\/1849"}],"wp:attachment":[{"href":"https:\/\/www.teamwavelength.com\/maintenance\/wp-json\/wp\/v2\/media?parent=3453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}