NAME PAVITHRA J DESIGNATION ASSISTANT PROFESSOR SUBJECT CODE 18PHY12 OPTICAL FIBERS CONTENTS Introduction Principle Types of Optical Fibers Applications Conclusions Fiberoptic communication is a method of transmitting information from one place to another by sending pulses of lig ID: 1039992
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1. TOPIC: Optical FiberModule-3:Maxwell’s Equations, EM waves and Optical FibersNAME: PAVITHRA JDESIGNATION: ASSISTANT PROFESSORSUBJECT CODE: 18PHY12
2. OPTICAL FIBERS
3. CONTENTSIntroductionPrincipleTypes of Optical FibersApplicationsConclusions
4. Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. It was developed in the 1970s, fiber-optic communication systems have revolutionized the telecommunications industry and have played a major role in the advent of the Information AgeIn 1880 Alexander Graham Bell and his assistant Charles Sumner Tainter created a very early precursor to fiber-optic communications.Introduction
5. Optical fibers are essentially light guides used in optical communication in the form of wave guidesThey are transparent dielectrics and able to guide visible and infrared light over long distancesOptical fibers consist of two parts 1.Core and2.Cladding DEFNITION
6. The core is generally made of glass. The core is surrounded by a layer of material called the cladding.Structure of optical fiberThe cladding is made of plastic or dielectric material. It reduces the scattering loss at the surface of coreThe coating which gives extra protection to the cladding is buffer It is made up of plastic
7. Principle
8. Modes of propagation
9. Types of optical fibersSingle modeStep index multimode fiberGraded index multimode fiber
10. Types of optical fibers
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13. In August 1850 John Watkins Brett's Anglo-French Telegraph Company laid the first line across the English Channel.A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean. Modern cables use optical fiber technology to carry digital data, which includes telephone, Internet and private data traffic.Applications in submarine optical communicationSystem
14. Submarine cable1.Polythene2.Mylar tape3.Stranded steel wire4.Aluminium water barrier5.Polycarbonate6.Copper or aluminium tube7.Petroleum jelly8.Optical fiberCross section of submarine cable
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20. Applications of Optical fibers in Medical field
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24. THANK YOUYou tube link: 1. https://youtu.be/j4qbhVQQdBQ 2. https://youtu.be/TmDSIZUNAcg 3. https://youtu.be/aylVgs2iDDw