Ch1Sec1BW

Ch1Sec1BW - 1 slow data rate 2 poor integrity high error...

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THE FIBER FORUM Fiber Optic Communications JOSEPH C. PALAIS PRESENTED BY
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Joseph C. Palais 1.1 2 Chapter 1 Fiber Optic Communications
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Joseph C. Palais 1.1 3 Section 1.1 Introduction HISTORY Early communications used light signals. Hand signals used light (from the sun or the moon) as an information carrier. The modulator was the hand of the sender. The detector was the eye of the receiver. The processor was the brain of the receiver.
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Joseph C. Palais 1.1 4 History Early Optical Communications Smoke signals Blinker lights Photophone: invented by Alexander Graham Bell Properties of early optical communications systems:
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Unformatted text preview: 1) slow data rate 2) poor integrity, high error rate Joseph C. Palais 1.1 5 Modern Optical Communications 1960: The first laser was constructed. 1960-1970 Time Period: Many laser applications were proposed. One proposal was for an optical communications link that operated line-of-sight though the atmosphere. Joseph C. Palais 1.1 6 Modern Optical Communications Problems A clear atmosphere was required for efficient transmission. The unguided atmospheric system needed an unobstructed line-of-site . Solution In 1970, a low-loss, glass fiber waveguide was developed at Corning....
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This note was uploaded on 05/11/2010 for the course EEE EEE-448 taught by Professor Palais during the Fall '09 term at ASU.

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Ch1Sec1BW - 1 slow data rate 2 poor integrity high error...

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