7 CS 6.2-OPTICAL COMMUNICATION |
Units: I |
Introduction to optical communication principles of light transmission optical fiber modes and configurations, Mode theory
for circular wave-guides, Single-mode fibers, Multimode fibers, Numerical aperture, Mode field diameter, V- number, fiber
materials, Fiber fabrication techniques.
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Units: II |
Optical sources, LED'S, LASER diodes, Model reflection noise, Power launching and coupling, population
inversion, fiber splicing, optical connectors, Photo-detectors, PIN, Avalanche detector, Response time, Avalanche
multiplication noise. |
Units: III |
Signal degradation in optical fibers, Attenuation losses, Signal distortion in optical wave guides, Material dispersion,
Wave guide dispersion, Chromatic dispersion, Inter-modal distortion, Pulse broadening in Graded index fibers, Mode
coupling, Advance fiber designs: dispersion shifted, Dispersion flattened, Dispersion compensating fibers, Design
optimization of single mode fibers.
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Units: IV |
Coherent optical fiber communication, Modulation techniques for Homodyne and Heterodyne systems, Optical filter
link design. Rise time budget and link power budget, Long haul systems bit error rate, line coding, NRZ, RZ, Block
Codes eye pattern.
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Units: V |
Advance system and techniques, wavelength division multiplexing, optical amplifiers semiconductor amplifier, EDFA,
Comparison between semiconductor and optical amplifier, Gain band width, Photonic switching, Optical Networks. Optical
fiber bus, Ring topology, Star architectures, FDDI, SON-ET.
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