3CS6.1-OPTICAL COMMUNICATION |
Units: I |
OPTICAL FIBERS - Basic optical laws and definitions, Principles of light
propagation in fibers, Ray theory, Optical fiber modes and configurations, Step
index and graded index fibers, Monomode and multimode fibers, Fiber materials,
fiber fabrication, Fiber optic cables. Attenuation, signal distortion in optical fibers,
Dispersion-intra modal & inter modal, Dispersion shifted and flattened fiber.
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Units: II |
OPTICAL SOURCES - LED’s- Structure, Materials, Characteristics, Modulation,
Power & efficiency, Laser Diodes - Basic concept, Hetro Structure, properties and
modulation. |
Units: III |
OPTICAL DETECTORS - PIN and Avalanche photo diodes, photo detector noise,
detector response time, Avalanche multiplication noise. Photo diode materials.
Fundamental of Optical Receiver Operation.
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Units: IV |
OPTICAL FIBER COMMUNICATION SYSTEMS- Source to fiber coupling, fiber
to fiber joints, fiber splicing, fiber connectors. Principle components. Link design
calculation, Applications, Wavelength division multiplexing.
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Units: V |
OPTICAL FIBER MEASUREMENTS: Measurements of Fiber attenuation,
Dispersion, refractive index profile, Numerical aperture & diameter.
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