InfoCoBuild

Fiber Optic Communication Technology

Fiber Optic Communication Technology. Instructor: Prof. Deepa Venkitesh, Department of Electrical Engineering, IIT Madras. This is a graduate level course, intended to expose the students to the physical layer elements and seamlessly provide a transition from the physical layer issues to data link layer issues in optical communication systems and networks. (from nptel.ac.in)

Lecture 74 - Optical Amplifier


Go to the Course Home or watch other lectures:

Lecture 01 - Introduction to Fiber Optic Communication Technology
Lecture 02 - Communication through the Ages
Lecture 03 - Communication: Basics 1
Lecture 04 - Communication: Basics 2
Lecture 05 - Digital Communication for Optical Communication
Lecture 06 - Digital Modulation: Basics 2
Lecture 07 - Digital Modulation: Basics 3
Lecture 08 - Optical Communication System
Lecture 09 - Optical Sources
Lecture 10 - Semiconductor Gain Media - Structure, Spectrum
Lecture 11 - Optical Sources: LED
Lecture 12 - External Quantum Efficiency
Lecture 13 - Modulation Bandwidth of LED
Lecture 14 - Optical and Electrical Bandwidth of LED
Lecture 15 - Emission Pattern of LED
Lecture 16 - Optical Sources: Laser Diodes over LEDs
Lecture 17 - Laser Diodes: Resonator Concepts 1A
Lecture 18 - Laser Diodes: Resonator Concepts 1B
Lecture 19 - Laser Diodes: Resonator Concepts 1C
Lecture 20 - Laser Diodes: Gain Coefficient
Lecture 21 - Laser Rate Equation: Steady State Solution
Lecture 22 - Laser Rate Equation: L-I Characteristics
Lecture 23 - Laser Power Derivation
Lecture 24 - Modulation Response of Laser 1
Lecture 25 - Modulation Response of Laser 2
Lecture 26 - Modulation Response of Laser 3
Lecture 27 - Setbacks of Direct Modulation of Laser: Modulation Chirp
Lecture 28 - Setbacks of Direct Modulation of Laser: Transient Chirp
Lecture 29 - Recap of Consequences of Direct Modulation
Lecture 30 - Noise in Lasers
Lecture 31 - Relative Intensity Noise
Lecture 32 - Laser Phase Noise 1
Lecture 33 - Laser Phase Noise 2
Lecture 34 - Effect of Laser Phase Noise: A Case Study
Lecture 35 - Electro-optic Phase Modulation
Lecture 36 - Electro-optic Intensity Modulator
Lecture 37 - Biasing of MZM: BPSK Generation
Lecture 38 - Biasing of MZM: QPSK and 16 QAM Generation
Lecture 39 - Line Coding Schemes and their Bandwidth Requirements
Lecture 40 - Introduction to Optical Fiber
Lecture 41 - Attenuation in Optical Fibers
Lecture 42 - Fiber Modes
Lecture 43 - Modes of a Step Index Fiber 1
Lecture 44 - Modes of a Step Index Fiber 2
Lecture 45 - Modes of a Step Index Fiber 3
Lecture 46 - Modes of a Step Index Fiber 4
Lecture 47 - Modes of a Step Index Fiber 5
Lecture 48 - Modes and Cut-off Conditions
Lecture 49 - Universal b-v Curves
Lecture 50 - Modal Profiles in Step Index Fiber
Lecture 51 - Mode Field Diameter
Lecture 52 - Dispersion: Intermodal Dispersion Derivation
Lecture 53 - Dispersion: Bit-Rate Distance Product
Lecture 54 - Phase Velocity and Group Velocity 1
Lecture 55 - Phase Velocity and Group Velocity 2
Lecture 56 - Material Dispersion
Lecture 57 - Waveguide Dispersion
Lecture 58 - Total Dispersion in Optical Fiber
Lecture 59 - Polarization Mode Dispersion
Lecture 60 - Photodetectors: Concepts
Lecture 61 - p-n and p-i-n Photodetectors
Lecture 62 - Avalanche Photodetector
Lecture 63 - Direct Detection Receiver and Sources of Noise
Lecture 64 - Quantifying Noises in Direct Detection Receivers
Lecture 65 - SNR and Operation Regimes
Lecture 66 - Noise Equivalent Power and SNR in APDs
Lecture 67 - Coherent Receivers
Lecture 68 - SNR Analysis of Coherent Receivers
Lecture 69 - Performance Evaluation 1
Lecture 70 - Performance Evaluation 2
Lecture 71 - Performance Metrics: BER, Q and Receiver Sensitivity
Lecture 72 - Performance Metrics: Q and SNR
Lecture 73 - Quantum Limit of Photodetection
Lecture 74 - Optical Amplifier
Lecture 75 - Erbium Doped Fiber Amplifier 1
Lecture 76 - Erbium Doped Fiber Amplifier 2
Lecture 77 - Erbium Doped Fiber Amplifier 3
Lecture 78 - Erbium Doped Fiber Amplifier 4
Lecture 79 - Link Design: Rise Time Budget
Lecture 80 - Link Design: Case Study
Lecture 81 - Link Design: Passive Optical Network and Long Haul Link
Lecture 82 - Dispersion: Recap
Lecture 83 - Dispersion Compensation: Pulse Propagation with Dispersion
Lecture 84 - Pulse Propagation 2
Lecture 85 - Dispersion Compensation: Dispersion Transfer Function
Lecture 86 - Dispersion Compensation: Case Study
Lecture 87 - Dispersion Compensation: WDM and DSP
Lecture 88 - Nonlinear Effects: Nonlinear Refractive Index
Lecture 89 - Self Phase Modulation
Lecture 90 - Cross Phase Modulation
Lecture 91 - Scattering Processes in Optical Fibers
Lecture 92 - Stimulated Brillouin Scattering
Lecture 93 - Stimulated Raman Scattering
Lecture 94 - Components: Directional Couplers
Lecture 95 - Components: VOA, Polariser, Polarisation Controllers
Lecture 96 - Components: Isolator
Lecture 97 - Components: Circulator, Definitions
Lecture 98 - Components: Wavelength Filters
Lecture 99 - Components: Arrayed Waveguide Gratings, WSS
Lecture 100 - Balanced Detection
Lecture 101 - Polarisation Diverse Coherent Receiver
Lecture 102 - Phase and Polarisation Diverse Coherent Receiver
Lecture 103 - Overview of Impairment in Coherent Optical Communication
Lecture 104 - Transceiver Impairments: Generation and Compensation
Lecture 105 - Channel Impairments: Generation and Compensation
Lecture 106 - Demo Video
Lecture 107 - Introduction to Optical Networks
Lecture 108 - Layers of Optical Network
Lecture 109 - SDH/SONET Layering, Frame Structure
Lecture 110 - Physical Networks Topologies
Lecture 111 - Topology Specific Link Design
Lecture 112 - Network Protection
Lecture 113 - Access Networks: PON
Lecture 114 - Optical Interconnects, Data Centers
Lecture 115 - Optical Communication for Wireless Fronthauling