Optical Fibers: Structure, Basics, Types, Step Index and Graded Index Optical Fibers

Optical Fibers is explained with the following timecodes: 0:00 – Outlines 0:37 – Structure of Optical Fiber 2:09 – Basics of Optical Fiber 4:09 – Types of Optical Fiber 8:42 – Comparison of Step Index Optical Fiber and Graded Index Optical Fiber Optical Fibers is explained with the following outlines: 1. Optical Communication 2. Optical Fibers 3. Structure of Optical Fiber 4. Basics of Optical Fiber 5. Types of Optical Fiber 6. Comparison of Step Index Optical Fiber and Graded Index Optical Fiber Chapter-wise detailed Syllabus of the Optical Communication Course is as follows: 1. Light Propagation in Optical Fiber:    • Light Propagation in Optical Fiber   Historical Development of Optical Communication, Comparison of Copper Wire and Optical Fiber Communication, Block Diagram of Optical Communication, Optical Fiber Structures and Types, Single-Mode and Multimode Fibers, Characteristics of Light, Refractive Index, Reflection and Refraction of Light, Total Internal Reflection, Critical Angle and Snell’s Law, Acceptance Angle and Numerical Aperture, V-Number (Normalized Frequency), Number of Modes in Optical Fiber, Solved Examples, Meridional and Skew Rays, Phase Velocity, Group Velocity and Group Index, Wave Model of Optical Fiber, Evanescent Field, Mode Coupling, Degenerated Modes, Mode Field Diameter, Effective Refractive Index, Group Delay and Mode Delay, Fundamental Mode of Optical Fiber. 2. Fiber Fabrication:    • Fiber Fabrication   Optical Fiber Fabrication Processes, OVPO, VAD, MCVD and PCVD Fabrication Methods, Photonic Crystal Fiber, Double Crucible Method, Fiber Materials, Glass and Plastic Optical Fibers. 3. Fiber Losses:    • Fiber Losses   Optical Communication Windows, Digital Transmission Hierarchy (T1, T2, T3, T4 Multiplexing), Attenuation in Optical Fiber, Material Absorption, Fiber Bending Losses, Scattering Losses, Dispersion Losses, Pulse Broadening due to Intermodal Dispersion, Fiber Birefringence, Optical Fiber Loss Solved Examples. 4. Optical Sources:    • Optical Sources   Direct and Indirect Bandgap Semiconductors, LED (Light Emitting Diode), Planar, Surface-Emitting and Edge-Emitting LEDs, LED Parameters and Solved Examples, LASER (Light Amplification by Stimulated Emission of Radiation), Mode Hopping and Frequency Chirp, Fabry–Perot and Distributed Feedback LASERs, Comparison of LED and LASER, Injection vs Optically Pumped LASER, Threshold Condition for Lasing, LASER Rate Equations, LASER Solved Examples. 5. Optical Detectors:    • Optical Detectors   Photodiode, Figures of Merit of Photodetectors, Photodetector Solved Examples, Avalanche Photodiode (APD), PIN Photodiode, Comparison of APD and PIN Photodiodes. 6. Power Launching & Coupling:    • Power Launching & Coupling   Power Coupled by LED in SI and GI Fibers, Equilibrium Numerical Aperture, Lensing Schemes in Optical Fiber, Fiber-to-Fiber Joint Losses, Fiber Splicing, Optical Fiber Connectors, Comparison of Fiber Splicing and Connectors. 7. Optical Link Budget:    • Optical Link Budget   Point to Point Link of Optical Communication, Link Power Budget Analysis, Rise Time Budget Analysis. 8. Optical Amplifiers:    • Optical Amplifiers   Optical Amplifiers, Semiconductor Optical Amplifier (SOA), Erbium-Doped Fiber Amplifier (EDFA), Raman Amplifier, Comparison of SOA, EDFA and Raman Amplifiers. 9. Optical Components:    • Optical Components   Optical Coupler, Optical Isolator, Optical Circulator, Optical Add Drop Multiplexer - OADM. 10. Optical Technologies:    • Optical Technologies   WDM - Wavelength Division Multiplexing, DWDM - Dense Wavelength Division Multiplexing, SONET, Comparison of WDM and SONET, Optical Soliton. 11. Optical Measurements:    • Optical Measurements   Eye Diagram, OTDR (Optical Time Domain Reflectometer), Dispersion Measurement, Attenuation Measurement, Numerical Aperture Measurement. Engineering Funda channel is all about Engineering and Technology. Here, this video is a part of Optical Communication. #OpticalFiberCommunication #OpticalCommunication #EngineeringFunda @EngineeringFunda