Ch. 9 - Fiber Optics - 3/23/2010 CIS 3001 Introduction to...

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3/23/2010 1 CIS 3001 Introduction to Information Technology 1 Information Technology in Theory By Pelin Aksoy and Laura DeNardis Chapter 9 Introduction to Fiber Optics CIS 3001 Introduction to Information Technology 2 Objectives ± Understand the importance of fiber-optic technologies in the information society ± Identify the fundamental components of a fiber-optic cable ± Understand the principles by which light travels within a fiber-optic cable, including refraction and 2 total internal reflection Information Technology in Theory
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3/23/2010 2 CIS 3001 Introduction to Information Technology 3 Objectives (continued) ± Understand how a single fiber can carry multiple Understand how a single fiber can carry multiple signals through wavelength division multiplexing ± Learn about the advantages and disadvantages of fiber optics as a transmission medium for various applications ± Gain exposure to cutting edge fibe optic approache 3 Gain exposure to cutting-edge fiber-optic approaches Information Technology in Theory CIS 3001 Introduction to Information Technology 4 Background on Optical Communications ± Fibe optic communication Fiber-optic communication o Trapping light inside an optical fiber o Can carry any form of information o Fiber is an optical medium, which means it is capable of transmitting light o Based on total internal reflection (TIR 4 Based on total internal reflection (TIR) Information Technology in Theory
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3/23/2010 3 CIS 3001 Introduction to Information Technology 5 Tyndall’s Experiment 5 Information Technology in Theory CIS 3001 Introduction to Information Technology 6 Structure of Fiber-Optic Cables ± Core ± Cladding ± Coating 6 Information Technology in Theory
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3/23/2010 4 CIS 3001 Introduction to Information Technology 7 General Structure of Fiber-Optic Cables 7 Information Technology in Theory CIS 3001 Introduction to Information Technology 8 General Structure of Fiber-Optic Cables (continued) 8 Information Technology in Theory
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3/23/2010 5 CIS 3001 Introduction to Information Technology 9 Structure of Fiber-Optic Cables – Cladding ± Cylindrical material made of glass or specialized Cylindrical material made of glass or specialized plastic ± Central portion of the fiber ± Light signal carrying the information travels through the core ± The diameter of the core can range from a couple 9 of micrometers ( μm -one millionth of a meter) to a couple of millimeters ( mm -one thousandth of a meter) Information Technology in Theory CIS 3001 Introduction to Information Technology 10 Structure of Fiber-Optic Cables – Jacket ± Surrounds the cladding ± Insulates and protects the fiber from physical damage and environmental effects, such as moisture, that might interfere with the inner workings of the cable ± Usually made of opaque plastic or another type of 10 material Information Technology in Theory
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3/23/2010 6 CIS 3001 Introduction to Information Technology 11 How Light Travels Through Fiber ± TIR is the basis of fibe optic communication TIR is the basis of fiber-optic communication ±
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Ch. 9 - Fiber Optics - 3/23/2010 CIS 3001 Introduction to...

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