{"id":8495,"date":"2020-08-24T18:38:00","date_gmt":"2020-08-24T16:38:00","guid":{"rendered":"https:\/\/www.laserpoint.eu\/photodiodes\/"},"modified":"2020-08-24T18:38:02","modified_gmt":"2020-08-24T16:38:02","slug":"photodiodes","status":"publish","type":"page","link":"https:\/\/www.laserpoint.eu\/fr\/technologies\/photodiodes\/","title":{"rendered":"Photodiodes"},"content":{"rendered":"

[vc_row type=\u00a0\u00bbvc_default\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2″][vc_custom_heading text=\u00a0\u00bbCapteurs \u00e0 photodiode\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Les capteurs \u00e0 photodiode convertissent les photons laser incidents en porteurs de charge (\u00e9lectrons et trous), qui sont ensuite mesur\u00e9s en tension ou en courant. Leur comportement faible bruit et \u00e0 haute sensibilit\u00e9 permet aux photodiodes de d\u00e9tecter de tr\u00e8s faibles niveaux de lumi\u00e8re et les rend id\u00e9ales pour les mesures de faible puissance des lasers CW.
\nPar rapport aux capteurs thermiques, les photodiodes ont une plage spectrale beaucoup plus restreinte et une uniformit\u00e9 spatiale plus faible, ce qui peut affecter la r\u00e9p\u00e9tabilit\u00e9 de la mesure de tr\u00e8s petits faisceaux ou de faisceaux qui ne sont pas stables sur la surface du d\u00e9tecteur. En g\u00e9n\u00e9ral, les capteurs \u00e0 photodiode sont le meilleur choix lors de mesures de tr\u00e8s faible puissance et lorsqu’un temps de r\u00e9ponse rapide est n\u00e9cessaire. <\/p>\n

Les capteurs \u00e0 photodiode ont une limite de saturation d’environ 1 mW \/ cm2<\/sup>; pour fonctionner \u00e0 des puissances plus \u00e9lev\u00e9es, des filtres att\u00e9nuateurs doivent alors \u00eatre utilis\u00e9s. La s\u00e9rie de photodiode de Laser Point pour la mesure de la puissance laser a \u00e9t\u00e9 con\u00e7ue pour couvrir une gamme de puissances allant jusqu’\u00e0 500 mW et une gamme spectrale allant de l’UV au proche IR. Ces capteurs sont propos\u00e9s dans un bo\u00eetier mince qui offre un blindage am\u00e9lior\u00e9 contre les interf\u00e9rences \u00e9lectromagn\u00e9tiques et peuvent \u00eatre fournis avec un ensemble d’adaptateurs \u00e0 fibre pour les connecter \u00e0 des cordons fibre optique standard.[\/vc_column_text][\/vc_column][vc_column width=\u00a0\u00bb1\/2″][vc_single_image image=\u00a0\u00bb824″ img_size=\u00a0\u00bblarge\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1591784193868{padding-top: 20px !important;padding-bottom: 20px !important;}\u00a0\u00bb][\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=\u00a0\u00bbCourbes d’absorption g\u00e9n\u00e9rales pour les capteurs \u00e0 photodiode\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_single_image image=\u00a0\u00bb601″ img_size=\u00a0\u00bblarge\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb][vc_single_image image=\u00a0\u00bb602″ img_size=\u00a0\u00bblarge\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb][vc_single_image image=\u00a0\u00bb603″ img_size=\u00a0\u00bblarge\u00a0\u00bb alignment=\u00a0\u00bbcenter\u00a0\u00bb][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row type=\u00a0\u00bbvc_default\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2″][vc_custom_heading text=\u00a0\u00bbCapteurs \u00e0 photodiode\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Les capteurs \u00e0 photodiode convertissent les photons laser incidents en porteurs de charge (\u00e9lectrons et trous), qui sont ensuite mesur\u00e9s en tension ou en courant. Leur comportement faible bruit et \u00e0 haute sensibilit\u00e9 permet aux photodiodes de d\u00e9tecter de tr\u00e8s faibles niveaux de lumi\u00e8re et les rend id\u00e9ales pour…<\/p>\n","protected":false},"author":1,"featured_media":5955,"parent":12782,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"acf":[],"yoast_head":"\nPhotodiodes - Laserpoint<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.laserpoint.eu\/fr\/technologies\/photodiodes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Photodiodes - Laserpoint\" \/>\n<meta property=\"og:description\" content=\"[vc_row type=\u00a0\u00bbvc_default\u00a0\u00bb][vc_column width=\u00a0\u00bb1\/2″][vc_custom_heading text=\u00a0\u00bbCapteurs \u00e0 photodiode\u00a0\u00bb use_theme_fonts=\u00a0\u00bbyes\u00a0\u00bb][vc_column_text]Les capteurs \u00e0 photodiode convertissent les photons laser incidents en porteurs de charge (\u00e9lectrons et trous), qui sont ensuite mesur\u00e9s en tension ou en courant. 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