21EC751 Optical and Satellite Communication
Course Learning Objectives
● Learn the basic principle of optical fiber communication with different modes of light propagation.
● Understand the transmission characteristics and losses in optical fiber.
● Study of optical components and its applications in optical communication networks.
● Understand the basic principle of satellite orbits and trajectories.
● Study of electronic systems associated with a satellite and the earth station.
● Study satellite applications focusing various domains services such as remote sensing, weather forecasting and navigation.
SYLLABUS COPY
MODULE - 1
Optical Fiber Structures
Optical Fiber Modes and Configurations, Mode theory for circular waveguides, Single mode fibers, Fiber materials, Photonic Crystal Fibers, Fiber Optic Cables.
Attenuation and Dispersion
Attenuation: Absorption, Scattering Losses, Bending loss, Signal Dispersion: Modal delay, Group delay, Material dispersion
MODULE - 2
Optical Sources and detectors
Light Emitting Diode: LED Structures, Light source materials, Quantum efficiency and LED power, Laser Diodes: Modes and threshold conditions, Rate equations, External quantum efficiency, Resonant frequencies, Photodetectors: The pin Photodetector, Avalanche Photodiodes.
WDM Concepts
Overview of WDM, Isolators and Circulators, Fiber grating filters, Dielectric thin-film filters, Diffraction Gratings
Optical Amplifiers
Basic Applications and types, Erbium doped fiber amplifiers
MODULE - 3
Satellite Orbit and Trajectories
Definition, Basic Principles, Orbital parameters, Injection velocity and satellite trajectory, Types of Satellite orbits.
Satellite In-orbit Operation
Orbital perturbations, Satellite stabilization, Orbital effects on satellite’s performance, Eclipses, Look angles: Azimuth angle, Elevation angle.
MODULE - 4
Satellite Hardware
Satellite Subsystems, Power supply subsystem, Attitude and Orbit control, Tracking, Telemetry and command subsystem, Payload.
Earth Station
Types of earth station, Architecture, Design considerations, Testing, Earth station Hardware, Satellite tracking. [Text2: 8.1, 8.2, 8.3,8.4,8.5,8.6]
MODULE - 5
Communication Satellites
Introduction, Related Applications, Frequency Bands, Payloads, Satellite Vs. Terrestrial Networks, Satellite Television, Satellite Data Communication Services.
Applications
Remote Sensing Satellites: Classification, Orbits, payloads. Weather Forecasting Satellites: Overview, Fundamentals, orbits and payload. Global Positioning Satellite System.
Course outcome
1. Classification and characterization of optical fibers and devices used for optical communication.
2. Understand the principle of operation of optical devices used for multiplexing and amplification of light.
3. Describe the satellite orbits and its trajectories with the definitions of parameters associated with
it.
4. Describe the electronic hardware systems associated with the satellite subsystem and earth station.
5. Understand the functioning of satellites for communication, remote sensing, and weather and navigation applications.
Suggested Learning Resources
Text Books
1. Gerd Keiser, Optical Fiber Communication, 5 Edition, McGraw Hill Education (India) Private Limited, 2016. ISBN:1-25-900687-5.
2. Anil K Maini, Varsha Agrawal, Satellite Communication, Wiley India Pvt. Ltd., 2015, ISBN: 978-81- 265-2071-8.
Reference Books
1. John M Senior, Optical Fiber Communications, Principles and Practice, 3 Edition, Pearson Education, 2010, ISBN:978-81-317-3266-3 2. Timothy Pratt, Charles Bostian, Jeremy Allnutt, Satellite Communications, 2 Edition, Wiley India Pvt. Ltd , 2017, ISBN: 978-81-265-0833-4 3. Dennis Roddy, Satellite Communications, 4 Edition, McGraw- Hill International edition, 2006