{"id":1314,"date":"2025-12-16T01:56:24","date_gmt":"2025-12-16T01:56:24","guid":{"rendered":"https:\/\/totalquartzworks.com\/?p=1314"},"modified":"2026-04-24T01:39:50","modified_gmt":"2026-04-24T01:39:50","slug":"types-of-optical-fibers-and-their-differences","status":"publish","type":"post","link":"https:\/\/quartz.10smt.com\/fr\/types-of-optical-fibers-and-their-differences\/","title":{"rendered":"Types de fibres optiques et leurs diff\u00e9rences"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Il existe de nombreux types de fibres optiques. En fonction de leurs applications, les fonctions et les performances requises varient. La classification des fibres optiques d\u00e9pend principalement de la longueur d'onde de travail, de la distribution de l'indice de r\u00e9fraction, des modes de transmission, des mati\u00e8res premi\u00e8res et des m\u00e9thodes de fabrication. Pour les fibres optiques utilis\u00e9es dans la communication, les principes de conception et de fabrication sont g\u00e9n\u00e9ralement les m\u00eames :<br>\u2460 faible att\u00e9nuation ;<br>\u2461 une certaine largeur de bande et une faible dispersion ;<br>\u2462 connexion facile ;<br>\u2463 dessin facile des fibres ;<br>\u2464 une grande fiabilit\u00e9 ;<br>\u2465 une fabrication relativement simple ;<br>\u2466 faible co\u00fbt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. Classification par longueur d'onde de travail<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fibres optiques ultraviolettes<\/li>\n\n\n\n<li>Fibres optiques \u00e0 lumi\u00e8re visible<\/li>\n\n\n\n<li>Fibres optiques dans le proche infrarouge<\/li>\n\n\n\n<li>Fibres optiques infrarouges<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. Classification selon la distribution de l'indice de r\u00e9fraction<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fibres \u00e0 indice progressif (SI)<\/li>\n\n\n\n<li>Fibres \u00e0 indice progressif (\u00e9galement appel\u00e9es fibres \u00e0 indice de gradient, GI)<\/li>\n\n\n\n<li>Autres (tels que les types triangulaires, en W, \u00e0 bardage d\u00e9prim\u00e9)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. Classification par modes de transmission<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fibres monomodes (y compris les fibres \u00e0 maintien de la polarisation et les fibres sans maintien de la polarisation)<\/li>\n\n\n\n<li>Fibres multimodes<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. Classification par mati\u00e8res premi\u00e8res<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fibres optiques en silice<\/li>\n\n\n\n<li>Fibres optiques en verre \u00e0 plusieurs composants<\/li>\n\n\n\n<li>Fibres optiques en plastique<\/li>\n\n\n\n<li>Fibres optiques composites (telles que les fibres rev\u00eatues de plastique, les fibres \u00e0 \u00e2me liquide)<\/li>\n\n\n\n<li>Fibres de mat\u00e9riaux infrarouges<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. Classification par m\u00e9thodes de fabrication<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fabrication de pr\u00e9formes :<\/strong> VAD, CVD, PCVD, MCVD, OCVD<\/li>\n\n\n\n<li><strong>Dessin de fibres :<\/strong> m\u00e9thode de la tige dans le tube et m\u00e9thode du creuset<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Fibres optiques en silice<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres optiques en silice sont principalement compos\u00e9es de dioxyde de silicium (SiO\u2082). En ajustant les diff\u00e9rentes concentrations de dopage, la distribution de l'indice de r\u00e9fraction du c\u0153ur et de la gaine peut \u00eatre contr\u00f4l\u00e9e. Les fibres \u00e0 base de silice se caract\u00e9risent par une faible perte et une large bande passante. Par rapport aux fibres optiques fabriqu\u00e9es \u00e0 partir d'autres mat\u00e9riaux, les fibres de silice offrent \u00e9galement une transmission dans tout le spectre, de l'ultraviolet au proche infrarouge (190-2500 nm).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Fibres optiques en verre \u00e0 composants multiples<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres de verre multicomposantes, comme les fibres composites, sont produites en m\u00e9langeant des oxydes tels que l'oxyde de sodium (Na\u2082O), l'oxyde de bore (B\u2082O\u2083), l'oxyde de potassium (K\u2082O), etc. avec SiO\u2082. Leurs caract\u00e9ristiques comprennent un point de ramollissement plus bas que le verre de quartz et une grande diff\u00e9rence d'indice de r\u00e9fraction entre le c\u0153ur et la gaine.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Fibres optiques gain\u00e9es de plastique<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres \u00e0 gaine plastique utilisent du quartz de haute puret\u00e9 comme c\u0153ur et des plastiques tels que le silicone ou la r\u00e9sine - dont l'indice de r\u00e9fraction est l\u00e9g\u00e8rement inf\u00e9rieur \u00e0 celui du quartz - comme gaine, formant ainsi une fibre \u00e0 indice progressif. Par rapport aux fibres de silice, elles ont un diam\u00e8tre de c\u0153ur plus important et une ouverture num\u00e9rique (NA) plus \u00e9lev\u00e9e. Par cons\u00e9quent, elles s'adaptent facilement aux sources de lumi\u00e8re LED et offrent une perte de transmission relativement faible.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Fibres optiques en plastique<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres optiques en plastique ont un c\u0153ur et une gaine enti\u00e8rement en plastique (polym\u00e8re). Les premiers produits \u00e9taient principalement utilis\u00e9s pour la d\u00e9coration, l'\u00e9clairage et la communication optique \u00e0 courte distance. Les mati\u00e8res premi\u00e8res courantes sont le PMMA, le polystyr\u00e8ne (PS) et le polycarbonate (PC). Leur att\u00e9nuation est limit\u00e9e par la structure de liaison C-H inh\u00e9rente aux polym\u00e8res et atteint g\u00e9n\u00e9ralement plusieurs dizaines de dB par kilom\u00e8tre.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Fibres optiques monomodes<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres optiques monomodes sont des fibres qui ne peuvent transmettre qu'un seul mode de propagation \u00e0 la longueur d'onde de fonctionnement, commun\u00e9ment abr\u00e9g\u00e9es SMF (Single Mode Fiber). Les fibres optiques monomodes ne pr\u00e9sentent pas de dispersion multimode et ont une largeur de bande de transmission plus large que les fibres multimodes.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Fibres optiques multimodes<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les fibres optiques capables de transmettre plusieurs modes sont appel\u00e9es fibres multimodes (MMF : Multi Mode Fiber). Sur la base de la distribution de l'indice de r\u00e9fraction, les fibres multimodes sont divis\u00e9es en deux types : les fibres \u00e0 gradient d'indice (GI) et les fibres \u00e0 gradient d'indice (SI). L'indice de r\u00e9fraction des fibres GI est le plus \u00e9lev\u00e9 au centre du c\u0153ur et diminue progressivement vers la gaine. Dans les fibres SI, les diff\u00e9rents chemins optiques entra\u00eenent des diff\u00e9rences de synchronisation lors de la r\u00e9flexion et de la transmission vers l'avant, ce qui provoque une distorsion du signal de sortie et un r\u00e9tr\u00e9cissement de la largeur de bande de transmission.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"574\" height=\"535\" src=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/Infrared-Band-Multimode-Silica-Optical-Fibers.png\" alt=\"Fibres optiques multimodes en silice \u00e0 bande infrarouge\" class=\"wp-image-1317\" srcset=\"https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/Infrared-Band-Multimode-Silica-Optical-Fibers.png 574w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/Infrared-Band-Multimode-Silica-Optical-Fibers-300x280.png 300w, https:\/\/quartz.10smt.com\/wp-content\/uploads\/2025\/11\/Infrared-Band-Multimode-Silica-Optical-Fibers-13x12.png 13w\" sizes=\"(max-width: 574px) 100vw, 574px\" \/><figcaption class=\"wp-element-caption\">Fibres optiques multimodes en silice \u00e0 bande infrarouge<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Optical fibers come in many types. Depending on their applications, the required functions and performance vary. The classification of optical [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1317,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Types and Classifications of Optical Fibers Explained","_seopress_titles_desc":"Overview of optical fiber types, including classifications by wavelength, refractive index, transmission mode, materials, and manufacturing 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