CTS-Session-02B-Cbls - Session Session 02-B Optical Fiber...

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Session 02-B LT/CTS-02B/1009 1 of 16 Optical Fiber Properties
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Properties of Optical Fiber Attenuation square4 Absorption square4 Scattering LT/CTS-02B/1009 2 of 16 Light Collection square4 Size square4 Aperture Dispersion
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Fiber Attenuation Attenuation is the amount of light lost between input and output. Attenuation limits the transmission distance for light retention. Total loss is the sum of loss due to: square4 Scattering square4 Absorption LT/CTS-02B/1009 3 of 16 square4 Light Coupling. Absorption and scattering are cumulative and increasing with fiber length. Practically the loss due to absorption and scattering together are called attenuation per unit length. Total loss is the determining factor for system performance.
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Fiber Attenuation Attenuation varies with wavelength depending on the material. LT/CTS-02B/1009 4 of 16 Most single mode communication fibers are used for wavelengths about 1280 nm and 1620 nm.
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Absorption Every material absorbs some light energy.
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