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Optical Communications

Optical Communications. Instructor: Dr. Pradeep Kumar K, Department of Electrical Engineering, IIT Kanpur. This course offers a gradual approach to optical communications with emphasis on latest developments in coherent optical communications. Starting from a broad introduction to transmitters and receivers, this course covers optical fibers and waveguides, lasers, detectors, optical amplifiers, channel impairments and their mitigation using signal processing algorithms. Matlab models will be discussed. (from nptel.ac.in)

Overview of Fiber Optic Communications


Lecture 01 - Overview of Fiber Optic Communications
Lecture 02 - Optical Transmitter: Block Diagram, Modulation Types, Laser as a Oscillator
Lecture 03 - Optical Transmitter: Phase Modulator, Mach-Zehnder Interferometer (MZM)
Lecture 04 - Optical Transmitter: Mach-Zehnder Interferometer (MZM)
Lecture 05 - Optical Transmitter: Intensity and Phase Modulation of Digital Data, I/Q Modulator
Lecture 06 - Intensity Modulation using MZM, Pulse Carver
Lecture 07 - Review of Signals and Representations I
Lecture 08 - Review of Signals and Representations II
Lecture 09 - Digital Modulations: Amplitude Shift Keying, Binary Phase Shift Keying
Lecture 10 - Review of Signals and Representations III
Lecture 11 - Review of Signals and Representations IV
Lecture 12 - Digital Modulations: Modulation Techniques
Lecture 13 - Digital Modulations: Modulation Techniques (cont.)
Lecture 14 - Digital Modulations: BPSK, QPSK, DQPSK, M-ary PSK Modulation
Lecture 15 - Optical Receivers: Direct Detection, Delay Line Detection
Lecture 16 - Optical Receivers: Coherent Receiver, Polarization Diversity
Lecture 17 - Optical Modulator: Physical Structure
Lecture 18 - Propagation of Electromagnetic Wave
Lecture 19 - Review of Electromagnetic Theory
Lecture 20 - Reflection of Waves
Lecture 21 - Optical Fiber: Introduction, Types of Fiber, Optical Window
Lecture 22 - Optical Fiber: Total Internal Reflection, Multimode Fiber, Modal Dispersion
Lecture 23 - Modes in Optical Fiber I
Lecture 24 - Modes in Optical Fiber: Solution of EH Field Equation in Fiber
Lecture 25 - Modes in Optical Fiber: Modes in Fiber and their Solution
Lecture 26 - Dispersion in Fibers: Types of Dispersion, Waveguide Dispersion
Lecture 27 - Dispersion in Fibers: Brief Introduction to Dispersion, Chirping
Lecture 28 - Wrapping Up Fiber Parameters
Lecture 29 - System Design: Rise Time Budget, Power Budget, Typical Losses in Fiber
Lecture 30 - Passive WDM Components: Coupled Mode Theory, Circulator, Isolator
Lecture 31 - Passive WDM Components: Filter and Fiber Bragg Grating
Lecture 32 - Detection of Light
Lecture 33 - Detection of Light: PIN Photodiode, I-V Characteristics of PIN
Lecture 34 - Response Time and Noise in Detectors
Lecture 35 - Noise in Photodiodes: Response Time, Dark Current, Shot Noise
Lecture 36 - Noise in Photodiodes: Thermal Noise, SNR in PD
Lecture 37 - Light Sources: Absorption, Spontaneous and Stimulated Emission, Einstein Coefficients
Lecture 38 - Light Sources: Population Inversion, LASER
Lecture 39 - Semiconductor Laser Diodes
Lecture 40 - Optical Communication - Pulse Shape and Bandwidth Issues
Lecture 41 - Power Spectral Density
Lecture 42 - Power Spectral Density (cont.)
Lecture 43 - Advantage of Coherent Receiver
Lecture 44 - Dispersion Induced Limitations
Lecture 45 - Optical Amplifiers I
Lecture 46 - Optical Amplifiers II
Lecture 47 - Noise in Optical Amplifiers
Lecture 48 - Noise in Optical Amplifiers (cont.)
Lecture 49 - Amplified Spontaneous Emission (ASE) Induced Limitations
Lecture 50 - Determining BER in OOK System
Lecture 51 - BER Determination
Lecture 52 - Eye Diagram and Higher Modulation Techniques
Lecture 53 - Higher Modulation Techniques (cont.)
Lecture 54 - Optical OFDM

References
Optical Communications
Instructor: Dr. Pradeep Kumar K, Department of Electrical Engineering, IIT Kanpur. This course offers a gradual approach to optical communications with emphasis on latest developments in coherent optical communications.