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Fiber Optic Video Transmission by David Goff

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Chapter 5

Characteristics of Optical Fiber

 

As countries continue to develop networks for global communication, fiber optics offers a method of transmission that allows for clearer, faster, more efficient communication than copper. A number of characteristics make optical fiber well-suited to video transmission. This chapter discusses the basics behind optical fiber transmission.

Principles of Operation

The principle of total internal reflection governs the operation of optical fiber. An image in a mirror represents only 90% of the reflected light. Total internal reflection reflects 100% of the light. Total internal reflection occurs because light travels at different speeds in different materials.

A dimensionless number called the index of ...

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