{"id":471,"date":"2021-06-22T09:55:37","date_gmt":"2021-06-22T01:55:37","guid":{"rendered":"https:\/\/kelly.anjun.com.tw\/?page_id=471"},"modified":"2021-11-01T14:54:00","modified_gmt":"2021-11-01T06:54:00","slug":"aa-20dd","status":"publish","type":"page","link":"https:\/\/www.anjun.com.tw\/en\/%e9%9b%b7%e5%b0%84\/%e9%9b%b7%e5%b0%84%e9%80%b1%e9%82%8a%e8%a8%ad%e5%82%99%e9%8a%b7%e5%94%ae\/atseva%e9%9b%b7%e5%b0%84\/%e6%aa%a2%e6%b8%ac%e5%b7%a5%e5%85%b7\/aa-20dd\/","title":{"rendered":"AA-20DD"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"471\" class=\"elementor elementor-471\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cd03994 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cd03994\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-87fc7a5\" data-id=\"87fc7a5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c0c12b1 elementor-widget elementor-widget-spacer\" data-id=\"c0c12b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ed9db95 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ed9db95\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-264ba01\" data-id=\"264ba01\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f424179 elementor-widget elementor-widget-text-editor\" data-id=\"f424179\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><span style=\"color: #000000;\">AA-20DD real-time USB autocorrelator<\/span><\/h3><ul><li><p><span style=\"color: #000000;\">Pulse duration range 10 \u2013 30000 fs<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">Wavelength range 450-2000 nm<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">USB connection<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">Acquisition and analysis PC software<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">Linear distortion less than 1%<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">Optional fiber input<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">Fringe-resolved autocorrelation function<\/span><\/p><\/li><\/ul>\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<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-192d8fa\" data-id=\"192d8fa\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c145226 elementor-widget elementor-widget-image\" data-id=\"c145226\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"180\" src=\"https:\/\/www.anjun.com.tw\/wp-content\/uploads\/2021\/06\/AA-10DD_opticalelectronics_M-1.gif\" class=\"attachment-large size-large wp-image-464\" alt=\"\" \/>\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\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c9e03b3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c9e03b3\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5fb5fa1\" data-id=\"5fb5fa1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fd9e1cd elementor-widget elementor-widget-text-editor\" data-id=\"fd9e1cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"panel-1560-1-0-1\" class=\"so-panel widget widget_sow-editor\" data-index=\"3\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">1. General<\/span><\/h3><p><span style=\"color: #000000;\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Writing femtosecond-related articles and doing estimations in ultrafast experiments without reliable pulse duration information can be a treacherous business. Besides, many applications demand the exact value of the pulse duration to be right on your PC screen accompanied by autocorrelation (AC) and intensity traces in real-time mode.\u00a0<\/span><br \/><span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0The AA-20DD scanning autocorrelator is a compact and undemanding assistant in monitoring of femtosecond and picosecond pulse duration from 20 fs to 6 ps.<\/span><\/p><p><span style=\"color: #000000;\">In addition to showing the AC, intensity traces and calculating the final FWHM pulse duration in real-time, the unit provides Gaussian and sech^2 fitting options and data storage and export. The statistical viewer feature allows comparison of different measurements. While the unit boasts USB connection and acquisition\/analysis software included into the default package, the oscilloscope can also be hooked up to the unit to see the raw AC trace if a PC is not around.<\/span><\/p><p><span style=\"color: #000000;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0The wavelength coverage of the unit is divided into three ranges: 450-700 nm, 700-1300 nm and 1300-2000 nm, each being covered by a relevant exchangeable photodetector\/beamsplitter couple. The standard AA-20DD comes with one photodetector\/BS for the desired range pre-installed and not exchangeable, while the AA-20DDM modification allows seamless interchangeability of the detector\/BS units and coverage of two or all three different wavelength ranges.\u00a0<\/span><\/p><p><span style=\"color: #000000;\">The unit also has an optional fiber input modification while at the same time maintaining the free-space measurement ability. This makes the AA-20DD a versatile budget-friendly tool for any lab that deals with femtosecond radiation.<\/span><\/p><\/div><\/div><\/div><div id=\"panel-1560-1-0-2\" class=\"so-panel widget widget_sow-editor\" data-index=\"4\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">2. Specifications<\/span><\/h3><p><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.anjun.com.tw\/wp-content\/uploads\/2017\/10\/AA-20DDtable.png\" alt=\"\" width=\"714\" height=\"431\" \/><\/p><\/div><\/div><\/div><div id=\"panel-1560-1-0-3\" class=\"so-panel widget widget_sow-editor\" data-index=\"5\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">3. Modifications<\/span><\/h3><p><span style=\"color: #000000;\">-F \u2013 adds a fiber input while still maintaining the ability to measure free-space pulses.<\/span><\/p><p><span style=\"color: #000000;\">-M \u2013 this mode enables the exchange of photodetector units\/BS, allowing you to cover two or all three available wavelength ranges with one device.<\/span><\/p><p><span style=\"color: #000000;\">-LP \u2013 long pulse version of the device, increases the input pulse duration range to 10 fs \u2013 30 ps.<\/span><\/p><p><span style=\"color: #000000;\">-LR \u2013 low input repetition rate limit, the rep rate requirement becomes &gt;10 Hz.<\/span><\/p><p><span style=\"color: #000000;\">Note: -F, -M, -LP and \u2013LR modifications can be combined in any way.<\/span><\/p><\/div><\/div><\/div><div id=\"panel-1560-1-0-4\" class=\"so-panel widget widget_sow-editor\" data-index=\"6\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">4. Applications<\/span><\/h3><ul><li><p><span style=\"color: #000000;\">Femtosecond oscillator and amplifier pulse duration measurement<\/span><\/p><\/li><li><p><span style=\"color: #000000;\">Pulse duration monitoring for various applications of femtosecond lasers<\/span><\/p><\/li><\/ul><\/div><\/div><\/div><div id=\"panel-1560-1-0-5\" class=\"so-panel widget widget_sow-editor\" data-index=\"7\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">5. <span class=\"widget-name\">FAQ<\/span><\/span><\/h3><p><span style=\"color: #000000;\"><strong>Q. How long does it take to swap the photodetector\/BS pair in the AA-20DD-M unit to cover a different wavelength range?<\/strong><\/span><\/p><p><span style=\"color: #000000;\">A. The procedure takes around 10 to 15 minutes and simple calibration is only necessary after the swap.<\/span><\/p><\/div><\/div><\/div><div id=\"panel-1560-1-0-6\" class=\"so-panel widget widget_sow-editor\" data-index=\"8\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">6. RFQ Hints<\/span><\/h3><p><span style=\"color: #000000;\"><strong>Just some quick hints before you send us an RFQ:<\/strong><\/span><\/p><p><span style=\"color: #000000;\">1. Choose the right wavelength range for your application: 450-700 nm, 700-1300 nm or 1300-2000 nm. Two or all three ranges can also be covered with the AA-20DD\u2013M modification.<\/span><br \/><span style=\"color: #000000;\">2. Decide on whether you require a fiber input modification.<\/span><br \/><span style=\"color: #000000;\">3. Send us the specs of your laser system (rep rate, wavelength, pulse duration, average power) so we can check if the AA-20DD is the right choice for you.<\/span><br \/><span style=\"color: #000000;\">4. Decide if you need one of other modifications (see modifications tab).<\/span><\/p><\/div><\/div><\/div><div id=\"panel-1560-1-0-7\" class=\"so-panel widget widget_sow-editor panel-last-child\" data-index=\"9\"><div class=\"so-widget-sow-editor so-widget-sow-editor-base\"><div class=\"siteorigin-widget-tinymce textwidget\"><h3><span style=\"color: #000000;\">7. PDF &amp; Extras<\/span><\/h3><p><span style=\"text-decoration: underline;\"><a href=\"https:\/\/1drv.ms\/b\/s!AnpRtfok8x0pjUVJU7qGyUnfhPbS\" target=\"_blank\" rel=\"noopener\">Download .PDF<\/a><\/span><\/p><\/div><\/div><\/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<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>AA-20DD real-time USB autocorrelator Pulse duration ran&hellip;&nbsp;<a href=\"https:\/\/www.anjun.com.tw\/en\/%e9%9b%b7%e5%b0%84\/%e9%9b%b7%e5%b0%84%e9%80%b1%e9%82%8a%e8%a8%ad%e5%82%99%e9%8a%b7%e5%94%ae\/atseva%e9%9b%b7%e5%b0%84\/%e6%aa%a2%e6%b8%ac%e5%b7%a5%e5%85%b7\/aa-20dd\/\" class=\"\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">AA-20DD<\/span><\/a><\/p>","protected":false},"author":2,"featured_media":0,"parent":454,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"class_list":["post-471","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AA-20DD &#060; \u5b89\u5747\u79d1\u6280\u6709\u9650\u516c\u53f8<\/title>\n<meta name=\"description\" content=\"AA-20DD real-time USB autocorrelator. 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