{"id":951,"date":"2026-02-22T13:25:55","date_gmt":"2026-02-22T05:25:55","guid":{"rendered":"http:\/\/www.optisensex.cn\/?p=951"},"modified":"2026-02-22T13:31:32","modified_gmt":"2026-02-22T05:31:32","slug":"1570-1572nm-dfb%e7%aa%84%e7%ba%bf%e5%ae%bd%e6%bf%80%e5%85%89%e5%99%a8-%e8%9d%b6%e5%bd%a2%e5%b0%81%e8%a3%85","status":"publish","type":"post","link":"https:\/\/www.optisensex.cn\/en\/product\/optoelectronic_device\/951\/","title":{"rendered":"1570\/1572nm-DFB Narrow Linewidth Laser - TEC Aspherical"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"951\" class=\"elementor elementor-951\" data-elementor-post-type=\"post\">\n\t\t\t\t<header class=\"elementor-element elementor-element-431be400 e-flex e-con-boxed e-con e-parent\" data-id=\"431be400\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-79184247 e-con-full e-flex e-con e-child\" 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100vw, 1920px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7d32af74 e-con-full e-flex e-con e-child\" data-id=\"7d32af74\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-5c8af3b3 e-con-full e-flex e-con e-child\" data-id=\"5c8af3b3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-80b2f87 elementor-widget elementor-widget-text-editor\" data-id=\"80b2f87\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">\u00a0 \u00a0 \u00a0 \u00a0 This product is a distributed feedback (DFB) semiconductor laser specifically designed for the detection of carbon monoxide (CO) and carbon dioxide (CO\u2082) gases. It offers two center wavelength options: 1570nm (corresponding to the CO absorption peak) and 1572nm (corresponding to the CO\u2082 absorption peak). It features a standard 14-pin butterfly package and an integrated TEC thermoelectric cooler, making it an ideal light source for building high-sensitivity, high-stability gas sensing systems.<\/p><p class=\"ds-markdown-paragraph\"><strong>Precise wavelength locking:<\/strong> The center wavelength can be selected as 1570nm (CO) or 1572nm (CO\u2082), optimized for the detection of the corresponding gas, ensuring high selectivity measurement and effectively avoiding cross-interference from background gases.<\/p><p class=\"ds-markdown-paragraph\"><strong>Narrow linewidth output:<\/strong> The DFB structure enables narrow linewidth laser output, effectively improving spectral resolution and fully meeting the needs of high-precision detection technologies such as TDLAS.<\/p><p class=\"ds-markdown-paragraph\"><strong>Integrated temperature control:<\/strong> Built-in TEC thermoelectric cooler and high-precision thermistor enable precise control and bidirectional adjustment of the laser's operating temperature, ensuring wavelength lock and long-term reliability over a wide temperature range.<\/p><p class=\"ds-markdown-paragraph\"><strong>High power stability:<\/strong>\u00a0It provides stable and powerful optical output to ensure signal strength and improve the detection limit.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3804d4e6 e-grid e-con-full e-con e-child\" data-id=\"3804d4e6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-734a0f21 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"734a0f21\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Obtain the specification<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-66df0790 elementor-align-left elementor-widget elementor-widget-button\" data-id=\"66df0790\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"http:\/\/www.optisensex.cn\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Contact US<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-31348f08 e-flex e-con-boxed e-con e-parent\" data-id=\"31348f08\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-5f8eba57 e-con-full e-flex e-con e-child\" data-id=\"5f8eba57\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-683c5950 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"683c5950\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-lightbulb\" viewbox=\"0 0 352 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M96.06 454.35c.01 6.29 1.87 12.45 5.36 17.69l17.09 25.69a31.99 31.99 0 0 0 26.64 14.28h61.71a31.99 31.99 0 0 0 26.64-14.28l17.09-25.69a31.989 31.989 0 0 0 5.36-17.69l.04-38.35H96.01l.05 38.35zM0 176c0 44.37 16.45 84.85 43.56 115.78 16.52 18.85 42.36 58.23 52.21 91.45.04.26.07.52.11.78h160.24c.04-.26.07-.51.11-.78 9.85-33.22 35.69-72.6 52.21-91.45C335.55 260.85 352 220.37 352 176 352 78.61 272.91-.3 175.45 0 73.44.31 0 82.97 0 176zm176-80c-44.11 0-80 35.89-80 80 0 8.84-7.16 16-16 16s-16-7.16-16-16c0-61.76 50.24-112 112-112 8.84 0 16 7.16 16 16s-7.16 16-16 16z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Product Features<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-760a1c08 e-grid e-con-full e-con e-child\" data-id=\"760a1c08\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aa67edb elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"aa67edb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-square\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M400 32H48C21.5 32 0 53.5 0 80v352c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V80c0-26.5-21.5-48-48-48z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">High output power<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-square\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M400 32H48C21.5 32 0 53.5 0 80v352c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V80c0-26.5-21.5-48-48-48z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Narrow linewidth, dual wavelength selectable<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4213649d elementor-align-start elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"4213649d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-square\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M400 32H48C21.5 32 0 53.5 0 80v352c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V80c0-26.5-21.5-48-48-48z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">TEC Low Power<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-square\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M400 32H48C21.5 32 0 53.5 0 80v352c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48V80c0-26.5-21.5-48-48-48z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Long-term stability and reliability<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-20c06264 e-flex e-con-boxed e-con e-parent\" data-id=\"20c06264\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-61f9662 e-con-full e-flex e-con e-child\" data-id=\"61f9662\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-31001185 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"31001185\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-cog\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M487.4 315.7l-42.6-24.6c4.3-23.2 4.3-47 0-70.2l42.6-24.6c4.9-2.8 7.1-8.6 5.5-14-11.1-35.6-30-67.8-54.7-94.6-3.8-4.1-10-5.1-14.8-2.3L380.8 110c-17.9-15.4-38.5-27.3-60.8-35.1V25.8c0-5.6-3.9-10.5-9.4-11.7-36.7-8.2-74.3-7.8-109.2 0-5.5 1.2-9.4 6.1-9.4 11.7V75c-22.2 7.9-42.8 19.8-60.8 35.1L88.7 85.5c-4.9-2.8-11-1.9-14.8 2.3-24.7 26.7-43.6 58.9-54.7 94.6-1.7 5.4.6 11.2 5.5 14L67.3 221c-4.3 23.2-4.3 47 0 70.2l-42.6 24.6c-4.9 2.8-7.1 8.6-5.5 14 11.1 35.6 30 67.8 54.7 94.6 3.8 4.1 10 5.1 14.8 2.3l42.6-24.6c17.9 15.4 38.5 27.3 60.8 35.1v49.2c0 5.6 3.9 10.5 9.4 11.7 36.7 8.2 74.3 7.8 109.2 0 5.5-1.2 9.4-6.1 9.4-11.7v-49.2c22.2-7.9 42.8-19.8 60.8-35.1l42.6 24.6c4.9 2.8 11 1.9 14.8-2.3 24.7-26.7 43.6-58.9 54.7-94.6 1.5-5.5-.7-11.3-5.6-14.1zM256 336c-44.1 0-80-35.9-80-80s35.9-80 80-80 80 35.9 80 80-35.9 80-80 80z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Technical parameters<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-43a24ab elementor-widget elementor-widget-image\" data-id=\"43a24ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"707\" src=\"http:\/\/www.optisensex.cn\/wp-content\/uploads\/2026\/02\/1c87d90c40f9860c9453c4f40053ac6-1024x905.webp\" class=\"attachment-large size-large wp-image-768\" alt=\"\" srcset=\"http:\/\/www.optisensex.cn\/wp-content\/uploads\/2026\/02\/1c87d90c40f9860c9453c4f40053ac6-1024x905.webp 1024w, http:\/\/www.optisensex.cn\/wp-content\/uploads\/2026\/02\/1c87d90c40f9860c9453c4f40053ac6-300x265.webp 300w, http:\/\/www.optisensex.cn\/wp-content\/uploads\/2026\/02\/1c87d90c40f9860c9453c4f40053ac6-768x679.webp 768w, http:\/\/www.optisensex.cn\/wp-content\/uploads\/2026\/02\/1c87d90c40f9860c9453c4f40053ac6-14x12.webp 14w, http:\/\/www.optisensex.cn\/wp-content\/uploads\/2026\/02\/1c87d90c40f9860c9453c4f40053ac6.webp 1151w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24060a87 elementor-widget elementor-widget-text-editor\" data-id=\"24060a87\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"SpeTable\">\n<div class=\"SpeTit\">The above functions and specifications are subject to the official product technical specifications. For more technical information, please contact us.<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-271f93ce e-flex e-con-boxed e-con e-parent\" data-id=\"271f93ce\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-45bb7f99 e-flex e-con-boxed e-con e-parent\" data-id=\"45bb7f99\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-4e3e0efd e-con-full e-flex e-con e-child\" data-id=\"4e3e0efd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7152fa9d elementor-widget elementor-widget-heading\" data-id=\"7152fa9d\" 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366.5-2 378.1.6 389.4l24 104C27.1 504.2 36.7 512 48 512c256.1 0 464-207.5 464-464 0-11.2-7.7-20.9-18.6-23.4z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">(+86) 13182956583<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-envelope\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 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