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Fiber Optic Communication Systems and Techniques

Fiber Optic Communication Systems and Techniques. Instructor: Prof. Pradeep Kumar K, Department of Electrical Engineering, IIT Kanpur. Recent years have seen an exponential increase in demand for large bandwidth and high data rate applications. This is fuelled by rapid advances in fiber-optic communications which includes introduction of digital signal processing (DSP) algorithms combined with coherent detection. A thorough grounding in optical fibers and fiber-optic communications is necessary to communication engineers to address future needs of high data rate communications. Fiber-Optic Communication Systems and Techniques provides solid background in wide ranging topics of fiber-optics. The topics covered include modes of optical fibers, impairments in optical fiber channel, lasers and photodiodes, optical amplifiers, WDM components, and digital fiber-optic communications. Several latest advances in DSP for fiber-optic communications is emphasized. (from nptel.ac.in)

Lecture 57 - DSP Algorithms for Carrier Phase Estimation

Topics covered - Timing recovery, coarse and fine frequency offset estimation, Effects of carrier phase fluctuations.


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Lecture 01 - Overview of Fiber Optic Communication Systems
Lecture 02 - Review of Maxwell's Equations
Lecture 03 - Uniform Plane Waves (UWPs) in Free Space
Lecture 04 - Properties of UWPs: Propagation Constant, Polarization, and Poynting Vector
Lecture 05 - Boundary Conditions and Reflections from a PEC
Lecture 06 - Obliquely Incident Waves: TE and TM Waves, Snell's Laws
Lecture 07 - Obliquely Incident Waves: Reflection and Transmission Coefficients, Brewster Angle
Lecture 08 - Total Internal Reflection
Lecture 09 - Ray Theory of Dielectric Slab Waveguides
Lecture 10 - Transverse Resonance Condition for Slab Waveguides
Lecture 11 - Introduction to Optical Fibers
Lecture 12 - Ray Theory of Light Propagation in Optical Fibers
Lecture 13 - Concept of Waveguide Modes
Lecture 14 - Systematic Procedure to Obtain Modes of Waveguide
Lecture 15 - Systematic Analysis of Parallel Plate Metallic Waveguide
Lecture 16 - Systematic Analysis of Dielectric Slab Waveguides
Lecture 17 - Further Discussion on Slab Waveguides
Lecture 18 - Modal Analysis of Step Index Optical Fiber
Lecture 19 - Properties of Modes of Step Index Optical Fiber
Lecture 20 - Properties of Modes of Step Index Optical Fiber (cont.)
Lecture 21 - Linearly Polarized Modes
Lecture 22 - Attenuation and Power Loss in Fibers
Lecture 23 - Introduction to Dispersion in Fibers
Lecture 24 - Mathematical Modelling of Dispersion: Transfer Function Approach
Lecture 25 - Pulse Propagation Equation and its Solution
Lecture 26 - Pre-Chirped Pulses and Inter and Intra-Modal Dispersion in Optical Fibers
Lecture 27 - Beam Propagation Method
Lecture 28 - Polarization Effects on Pulse Propagation
Lecture 29 - Modes in Optical Fibers and Pulse Propagation in Optical Fibers
Lecture 30 - Graded Index Fibers
Lecture 31 - Light Sources, Detectors and Amplifiers
Lecture 32 - Basics of Lasers
Lecture 33 - Basics of Lasers (cont.)
Lecture 34 - Basics of Lasers (cont.)
Lecture 35 - Basic Properties of Semiconductor Lasers
Lecture 36 - Basic Properties of Semiconductor Lasers (cont.)
Lecture 37 - Optical Properties of Semiconductors
Lecture 38 - Optical Properties of Semiconductors (cont.)
Lecture 39 - Double Heterostructure Lasers, Introduction to Quantum Well Lasers
Lecture 40 - Semiconductor Optical Amplifier
Lecture 41 - Erbium Doped Fiber Amplifier
Lecture 42 - Photodetectors
Lecture 43 - Noise in Photodetectors
Lecture 44 - Introduction to WDM Components
Lecture 45 - Couplers, Circulators, FRM and Filters
Lecture 46 - Filter, MUX/DEMUX, Diffraction Grating (FBG and Long Period Grating)
Lecture 47 - Optical Modulators: Current Modulation
Lecture 48 - Optical Modulators: Electro-optic Modulators
Lecture 49 - Review: Deterministic and Random Signals, Baseband and Passband Signals
Lecture 50 - Review: Signal and Vectors, Signal Energy, Orthonormal Basis Functions
Lecture 51 - Intensity Modulation/ Direct Detection
Lecture 52 - BER Discussion for OOK Systems
Lecture 53 - Higher Order Modulation and Coherent Receiver
Lecture 54 - Coherent Receiver for BPSK Systems and BER Calculation
Lecture 55 - Recovering Polarization
Lecture 56 - DSP Algorithms for Chromatic Dispersion Mitigation
Lecture 57 - DSP Algorithms for Carrier Phase Estimation
Lecture 58 - DSP Algorithms for Carrier Phase Estimation (cont.)
Lecture 59 - Nonlinear Effects in Fiber
Lecture 60 - Four Wave Mixing, Loss Measurement, Dispersion Measurement
Lecture 61 - Lab Demonstration: Laser Diode Characteristics, Loss Measurement, Optical Intensity Modulation