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Description of  OPTICAL COMMUNICATION & NETWORKING: Beginner Guide

OPTICAL COMMUNICATION AND NETWORKING UNIT I INTRODUCTION Introduction, Ray theory transmission- Total internal reflection-Acceptance angle Numerical aperture Skew rays Electromagnetic mode theory of optical propagation EM waves modes in Planar guide phase and group velocity cylindrical fibers SM fibers. Attenuation Material absorption losses in silica glass fibers Linear and Nonlinear Scattering losses - Fiber Bend losses Midband and far and infrared transmission Intra and inter Modal Dispersion Overall Fiber Dispersion Polarization- Nonlinear Phenomena. Optical fiber connectorsFiber alignment, and Joint Losses Fiber Splices Fiber connectors Expanded Beam Connectors Fiber Couplers. Optical sources: Light Emitting Diodes - LED structures - surface and edge emitters, mono and heterostructures - internal - quantum efficiency, injection laser diode structures - comparison of LED and ILD Optical Detectors: PIN Photodetectors, Avalanche photodiodes, construction, characteristics and properties, Comparison of performance, Photodetector noise Noise sources, Signal to Noise ratio, Detector response time. Fundamental receiver operation, Preamplifiers, Error sources Receiver Configuration Probability of Error Quantum limit. Fiber Attenuation measurements- Dispersion measurements Fiber Refractive index profile measurements Fiber cut- off Wavelength Measurements Fiber Numerical Aperture Measurements Fiber diameter measurements. Basic Networks SONET / SDH Broadcast and select WDM Networks Wavelength Routed Networks Non linear effects on Network performance Performance of WDM + EDFA system Solitons Optical CDMA Ultra High Capacity Networks. Read more