Comparative Study of Step Index and Graded Index Fiber
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 10
Abstract
Optical fibers are widely used in optical fiber communications. Optical fibers permit transmission over longer distances and at higher bandwidth (data rates) than the wire cables. Fibers are used instead of metal wires for communications because signals travel along them with less loss and also they are immune to electromagnetic interference. These fibers are also used for illumination, and are wrapped in bundles so that they can be used to carry images, allowing viewing in confined spaces. Various specially designed fibers are there, used for a variety of other applications, including fiber lasers and sensors. Optical fibers consist of a transparent core surrounded by a transparent cladding material with a lower refractive index. The process of total internal reflection is used to keep the light in the core and this causes the fiber to act like a waveguide. Fibers supporting more than one propagation paths or transverse mode are called multimode fiber (MMF), while those supporting a single mode are called single mode fiber (SMF).
Authors and Affiliations
Sarita Rani, Smridhi Malhotra, Vinesh Sangwan
Keywords
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