1. Introduction: Need of Fiber Optic Communications, Evolution of Light wave
Systems, Basic Concepts; Analog & Digital Signals, Channel Multiplexing, Modulation
Formats, Optical Communication Systems, Light wave System Components; Optical
Fibers as a Communication Channel, Optical Transmitters, Optical Receivers.
2. Optical Fibers: Geometrical-Optics Description; Step-Index Fibers, Graded Index
Fibers, Wave Propagation; Maxwell’s Equations, Fiber Modes, Single-Mode-Fibers,
Dispersion in Single-Mode Fibers; Group Velocity Dispersion, Material Dispersion,
Wave guide Dispersion, Higher-order Dispersion, Polarization-Mode Dispersion,
Dispersion-Induced Limitations; Basic Propagation Equation, Chirped Gaussian
Pulses, Limitations on the Bit Rate, Fiber Bandwidth , Fiber Losses; Attenuation
Coefficient, Material Absorption, Rayleigh Scattering, wave guide Imperfections,
Nonlinear Optical effects; Stimulated Light Scattering, Nonlinear Phase Modulation,
Four Wave Mixing, Fiber Manufacturing; Design Issues, Fabrication Methods, Cables
and Connectors
3. Optical Transmitters: Basic Concepts; Emission and Absorption Rates, p-n
Junctions, Non radiative Recombination, Semi conductor Materials, Light Emitting
Diodes; Power-current Characteristics, LED spectrum, Modulation Response, LED
Structures, Semi Conductor Lasers; DFB Lasers, Coupled Cavity semiconductor
Lasers, Tunable Semiconductor Lasers, Vertical Cavity Semiconductor Lasers, Laser
Characteristics, Small & Large Signal Modulation, Spectral Line width, Source Fiber
Coupling.
4. Optical Receivers: Basic concepts, p-n Photo Diodes, p-i-n Photo Diodes,
Avalanche Photo Diode, MSM Photo detector, Receiver Design, Receiver Noise;
Noise mechanism, Receiver sensitivity; Bit error rate, Minimum Receiver Power,
Sensitivity Degradation, Receiver Performance.
5. Light Wave Systems: System Architecture, Loss limited Light wave systems,
Dispersion limited Light wave systems, Power Budget, Long Haul systems, Sources
of Power Penalty; Model Noise, Dispersive Pulse Broadening, Mode Partition Noise,
Frequency Chirping, Reflection Feedback Noise.
6. Multi channel Systems: WDM Light wave systems, Optical TDM