{"id":50147,"date":"2025-06-10T14:17:57","date_gmt":"2025-06-10T14:17:57","guid":{"rendered":"https:\/\/photonics.laser2000.co.uk\/?post_type=product&#038;p=50147"},"modified":"2025-12-17T14:36:21","modified_gmt":"2025-12-17T14:36:21","slug":"pdm-ir","status":"publish","type":"product","link":"https:\/\/stagingphotonics.laser2000.co.uk\/?product=pdm-ir","title":{"rendered":"PDM-IR"},"content":{"rendered":"<p>The PDM-IR is a photon counting module based on an InGaAs\/InP Single-Photon Avalanche Diode (SPAD) for the detection of near-infrared single photons up to 1700 nm (see PDE graphs). The module includes a programmable frequency and pulse generator for gating the detector, a front-end circuit for photodetector\u2019s avalanche sensing, a fast circuit for detector\u2019s avalanche current quenching and operative bias voltage resetting and some sub-circuits for signal conditioning. All the main parameters and delay paths are adjustable by the user through the software interface, in order to match the requirements of different applications. The system can be conveniently used both for counting and timing measurements, since the high-performance electronics guarantees a clean temporal response even with fast gate transitions (see typical IRF curves displayed here below). PDM-IR can work either in free-running or in gated mode and the optical interface can be chosen between free space and a pigtailed version. Here below typical DCR vs Hold-Off are shown for both gated and free-running modes.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-medium wp-image-21702\" src=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2021\/07\/Screenshot-2021-07-28-162158-600x525.png\" alt=\"\" width=\"600\" height=\"525\" \/> <img decoding=\"async\" class=\"alignnone size-medium wp-image-21703\" src=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2021\/07\/Screenshot-2021-07-28-162208-600x498.png\" alt=\"\" width=\"600\" height=\"498\" \/> <img decoding=\"async\" class=\"alignnone size-medium wp-image-21704\" src=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2021\/07\/Screenshot-2021-07-28-162218-600x469.png\" alt=\"\" width=\"600\" height=\"469\" \/><\/p>\n<p>System requirements (software and SDK):<\/p>\n<ul>\n<li>The host computer (minimum requirements): USB 2.0 interface, 1 GHz processor and 512 MB of RAM<\/li>\n<li>Supported operating systems<\/li>\n<li>VisualPDM-IR<\/li>\n<li>Microsoft 7, 8,10, 32- or 64-bit versions<\/li>\n<\/ul>\n<p>SDK:<\/p>\n<ul>\n<li>Microsoft 7, 8,10, 32- or 64-bit versions<\/li>\n<li>Linux Ubuntu 12.04 LTS, Fedora Core 15 or compatible distributions, 32- or 64-bit versions<\/li>\n<li>Mac OS X 10.7.5 and above<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We offer top range photon detectors. The PDM-IR is ideal for <strong>NIR photons up to 1700nm<\/strong> and includes a <strong>programmable frequency<\/strong> and <strong>pulse generator<\/strong> for <strong>gating the detector<\/strong>.<\/p>\n","protected":false},"featured_media":50247,"template":"","meta":{"_acf_changed":false,"footnotes":""},"product_brand":[],"product_cat":[236],"product_tag":[],"class_list":{"0":"post-50147","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-photon-counting-and-timing","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.6 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Single Photon Detection PDM-IR - Laser 2000 Products<\/title>\n<meta name=\"description\" content=\"Laser 2000 offers the PDM-IR for NIR photons up to 1700nm and includes a pulse generator for gating the detector.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PDM-IR\" \/>\n<meta property=\"og:description\" content=\"Laser 2000 offers the PDM-IR for NIR photons up to 1700nm and includes a pulse generator for gating the detector.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/stagingphotonics.laser2000.co.uk\/products\/light-detection-and-imaging\/optical-receivers\/photon-counting-and-timing\/pdm-ir\/\" \/>\n<meta property=\"og:site_name\" content=\"Laser 2000\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-17T14:36:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/stagingphotonics.laser2000.co.uk\/wp-content\/uploads\/2025\/06\/PDM-IR_freeSpace_sc.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"917\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Price\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Availability\" \/>\n\t<meta name=\"twitter:data2\" content=\"In stock\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/stagingphotonics.laser2000.co.uk\\\/products\\\/light-detection-and-imaging\\\/optical-receivers\\\/photon-counting-and-timing\\\/pdm-ir\\\/\",\"url\":\"https:\\\/\\\/stagingphotonics.laser2000.co.uk\\\/products\\\/light-detection-and-imaging\\\/optical-receivers\\\/photon-counting-and-timing\\\/pdm-ir\\\/\",\"name\":\"Single Photon Detection PDM-IR - 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