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1. Introducing multimode optical fibers
Optical fibers used in telecommunications are generally made of dielectric materials (in this article, glass or plastic) whose function is to confine and guide visible or infrared light over long distances. These optical fibers are made up of two concentric tubes of dielectric material, each with a different dielectric permittivity (and therefore a different refractive index). Under certain conditions, light is guided along the axis of revolution of the optical fiber into the material with the higher refractive index – in most cases, within the core of the fiber.
1.1 Definition of physical parameters
Two types of optical fiber with very distinct applications can be defined according to their core diameter. We differentiate between single-mode and multimode optical...
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Introducing multimode optical fibers
Bibliography
Standards and norms
- Optical fibres – Part 2-10: Product specifications – Sectional specification for category A1 multimode fibres; NF EN (April 2008) - IEC 60793-2-10 - 6-2007
- ISO 11801 – Information technology – Generic cabling for customer premises - ISO 11801 - 9-2002
- Product specifications – Sectional specification for category A4 multimode fibres, 2nd edition ; NF EN (april 2008) http://webstore.iec.ch/webstore/webstore.nsf/artnum/035855...
Directory
Manufacturer of multimode glass optical fibers http://www.corning.com/opticalfiber/
Manufacturer of multimode glass optical fibers http://www.draka.com/draka/lang/en/nav/Markets/Communications/Optical_fiber/index.jsp
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The Ultimate Scientific and Technical Reference