Ch1Sec4BW

Ch1Sec4BW - THE FIBER FORUM Fiber Optic Communications...

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THE FIBER FORUM Fiber Optic Communications JOSEPH C. PALAIS PRESENTED BY
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Joseph C. Palais 1.4 2 Section 1.4 Advantages of Glass Fibers Cost: The cost of fiber is very low, because glass is plentiful and cheap. Weight: Fiber cables are smaller than conducting cables and weigh much less. Strength: Fibers are strong and flexible, enabling them to go around corners. Glass fibers have a very high tensile strength.
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Joseph C. Palais 1.4 3 ADVANTAGES OF GLASS FIBERS High information capacity: Glass fiber can carry more signals then a conducting cable.
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Joseph C. Palais 1.4 4 ADVANTAGES OF GLASS FIBERS Low Loss: As the modulation frequency increases, coaxial cable losses increase at a faster rate than do fiber losses. Copper Fiber dB loss (1km length) Modulation Frequency(Hz) 4 7 3 dB f 3-dB
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1.4 5 3-dB OPTICAL BANDWIDTH As light propagates down a fiber at low modulation frequencies, its loss remains constant. At higher modulation frequencies the signal power begins to decrease. The
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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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Ch1Sec4BW - THE FIBER FORUM Fiber Optic Communications...

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