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.
UNIT II TRANSMISSION CHARACTERISTICS OF OPTICAL 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 connectors, Fiber alignment, and Joint Losses - Fiber Splices - Fiber connectors - Expanded Beam Connectors - Fiber Couplers.
UNIT III SOURCES AND DETECTORS
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.
UNIT IV FIBER OPTIC RECEIVER AND MEASUREMENTS
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.
UNIT V OPTICAL NETWORKS
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.