Ch1Sec3BW

Ch1Sec3BW - 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 1.3 2 Section 1.3 Wave Nature of Light Sometimes light behaves as a wave and sometimes light behaves as a particle. We will look at both behaviors. 1.3.1 Wave Nature of Light Light is an electromagnetic wave that satisfies Maxwell’s Equations. The electromagnetic spectrum is a range of frequencies classified into groups.
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Joseph C. Palais 1.3 3 Wave Nature of Light 10 16 10 15 10 14 10 13 10 12 10 11 10 10 10 9 10 8 10 7 10 6 10 5 10 4 10 3 10 2 10 1 1 Ultraviolet Visible Infrared Millimeter waves Microwaves Radio Power Frequency (Hz)
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Joseph C. Palais 1.3 4 WAVE NATURE OF LIGHT Most of the frequencies in fiber optic systems are In the Infrared. Wavelength and frequency are related by: f v = λ where v is the velocity of the wave in the medium. In free space, v = c = 3 x10 8 m/s (1.3)
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Joseph C. Palais 1.3 5 WAVE NATURE OF LIGHT All materials slow down the light waves, so v < c in all materials. If the material is changed, then the
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Ch1Sec3BW - THE FIBER FORUM Fiber Optic Communications...

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