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Optical Communication Syllabus
This article is created to cover the chapter-wise syllabus of optical communication. Let's start with its introduction.
Introduction to Optical Communication
- Optical Spectral Band with Operating Windows
- General Communication System
- Optical Communication System with its advantages
- Optical Fiber Waveguides
- Ray Theory of Transmission with Total Internal Reflection (TIR), Acceptance Angle, Numerical Aperture and Skew Rays
- Electromagnetic Mode Theory for Optical Propagation
- Modes in a Planar Guide
- Phase and Group Velocity
- Phase Shift with TIR
- Evanescent Field
- Goos-Haenchen Shift
- Cylindrical Fiber Modes
- Mode Coupling
- Step Index fibers Vs Graded Index fibers
- Single Mode Fibers and Cut off wavelength
- MFD & Spot Size
Signal Loss in Optical Fibers
- Attenuation
- Material Absorption Losses (Intrinsic and Extrinsic absorption)
- Types of Linear and Non-Linear Scattering Losses
- Fiber Bending Losses
- Kerr Effect
- Dispersion: Introduction with its types:
- Chromatic/Intramodal Dispersion (Material and Waveguide D'ispersion)
- Intermodal dispersion (for MSI and MGI fibers)
- Overall (Total) Fiber Dispersion in Multimode and Singe Mode Fiber
- Dispersion Modified Single Mode Fibers
- Polarization & Fiber Birefringence
Optical Sources
- LEDs:
- Introduction to LEDs & Materials used for fabrication
- LED Power and Efficiency
- LED Structures
- LED Characteristics
- Modulation Bandwidth
- Laser Diodes:
- Introduction
- Optical Feedback & Laser Oscillations
- Resonant Frequencies
- Laser Modes
- Threshold Condition for Laser Oscillation
- Laser Diode Rate Equations
- Semiconductor injection Laser:
- Efficiency
- Laser Single Mode operation
- Reliability of LED & ILD
Power Launching in Fiber
- Source to Fiber Power Launching and Coupling Techniques
- Power Launching Vs Wavelength
- Equilibrium Numerical Aperture
- Photodetector:
- Introduction
- Physical Principles of Photodiodes:
- The PIN Photo Detector
- Avalanche Photodiodes
- Temperature Effect on Avalanche Gain
- Detector Response Time
- Photo Detector Noise:
- Noise Sources
- Signal to Noise Ratio
- Comparison of Photo Detectors
- Fundamental Receiver Operation with Digital Signal Transmission
Digital Receiver Performance
- Probability of Error/BER
- Receiver Sensitivity & The Quantum Limit
- Error Control Techniques
- Eye Diagram Pattern Features
- Coherent Detection: Homodyne Detection and Heterodyne Detection
- Digital links: Point to Point Links
- Power Penalties
- Multichannel & Multiplexing Transmission Techniques
- Basic concept of Free Space Optics (FSO) based Communication System
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