{"ModuleCode":"EE4114","ModuleTitle":"Optical Communications","Department":"Electrical & Computer Engineering","ModuleDescription":"This module offers an introduction to the fundamental principles and components of optical communication systems. The module objective is to provide a basic understanding of present optical communication systems as well as future engineering challenges. To this end, the module covers the basic concepts of fiber optics, data modulation in optical fiber channels, management of fiber degrading effects, and wavelength division multiplexing. 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The module objective is to provide a basic understanding of present optical communication systems as well as future engineering challenges. To this end, the module covers the basic concepts of fiber optics, data modulation in optical fiber channels, management of fiber degrading effects, and wavelength division multiplexing. It also includes the basic constituent components of optical communication systems, including transmitters, receivers, optical amplifiers, and optical fibers.\n\n","Order":1},{"ID":"2e5f053b-8835-4692-be49-41f07234cfff","Title":"Prerequisites","Description":"EE3131C","Order":2},{"ID":"6e5f053b-8835-4692-be49-41f07234cfff","Title":"Syllabus","Description":" EE4114 Optical Communications
\n
\n1. Module Details
\n
\nModule Code: EE4114
\n
\nModule Title: Optical Communications
\n
\nModular Credit: 4 MCs
\n
\nHours / Week: 2.5-0.5-0.5-1.5-5 (Lec–Tut–Lab–Proj/Assignments–Preparation)
\n
\nPrerequisites: EE3103 Communications
\nor EE3131C Communication Systems
\n
\nCo-requisites: none
\n
\nExclusions: none
\n
\n
\n2. Proposed Short Entry in Faculty Handbook
\n
\nThis module offers an introduction to the fundamental principles and components of optical communication systems. The module objective is to provide a basic understanding of present optical communication systems as well as future engineering challenges. To this end, the module covers the basic concepts of fiber optics, data modulation in optical fiber channels, management of fiber degrading effects, and wavelength division multiplexing. It also includes the basic constituent components of optical communication systems, including transmitters, receivers, optical amplifiers, and optical fibers.
\n
\n
\n3. Objectives/Justification of Module
\n
\nOptical fiber communication systems have constituted the backbone network of worldwide telecommunication systems which allow the advent of the Internet age. This module introduces students to a wide range of enabling techniques and methods that have been developed and deployed over past 25 years in high-speed wire-line telecommunications. Along with other modules about wireless communications and computer networks, this module provides student with a complete view of physical laser telecommunication systems.
\n
\n· Outcomes
\n
\nAt the end of this module the student should:
\n
\n(a) Be able to analyze the performance of fiber optic communication systems.
\n(b) Be able to select optical components for the design of specific fiber-optic communication systems.
\n(c) Be able to design simple fiber-optic communication systems for given constraints and conditions.
\n(d) Be able to model fiber channel as a communication medium.
\n(e) Be able to describe current optical communication systems. Develop a solid understanding of digital communication systems and how they work.
\n
\n4. Module Description (Syllabus)
\n
\n
\n1. Introduction to optical communication systems. (2 hours)
\n
\nOverview of optical communication systems.
\n
\n2. Optical fibers (6 hours)
\n
\nStep and graded-index fibers. Modes in step-index fibers. Dispersion in single-mode fiber. Dispersion-induced limitations. Losses. Nonlinear effects in fibers: Raman, Brillouin, Self- and cross-phase modulation, four-wave mixing.
\n
\n3. Optical transmitters (4 hours)
\n
\n Gain media. Light-emitting diodes.Laser diodes. Longitudinal mode control. LD characteristics: continuouswave, modulation, intensity noise, linewidth. Electro-optic and electroabsorption modulators.
\n
\n4. Optical receivers (3 hours)
\n
\n Photodetectors: p-i-n, avalanche photodiode. Receiver designs. Receiver noise. Receiver sensitivity. Sensitivity degradations: extinction ratio, intensity noise, jitter.
\n
\n5. Optical amplifiers (4 hours)
\n
\n Basic concepts. Semiconductor optical amplifiers. Erbium-doped fiber amplifiers (EDFAs). System applications.
\n
\n6. Lightwave systems (5 hours)
\n
\nAdditional sensitivity degradations: group-velocity dispersion, chirp, optical reflections, modal noise. System architectures: local-area, CATV, access, metropolitan-area, long-haul.
\n
\n7. Dispersion management (3 hours)
\nPrecompensation techniques, postcompensation techniques. Dispersion-compensating fibers, filters, fiber Bragg gratings. Polarization-mode dispersion.
\n
\n8. Multichannel systems (4 hours)
\n
\nWavelength-division multiplexing components: filters, (de)multiplexers, wavelength converters. WDM systems, crosstalk.
\n Total: 31 hours
\n
\n
\n5. Textbooks and References
\n
\nRecommended Textbook
\n1.“Fiber-optic communication systems,” by G. Agrawal, 3rd edition, Wiley-Interscience, 2002
\nReference Books
\n2. “Fiber optic communications”, by Palais, 5th edition, Prentice Hall, 2004
\n
\n
\n6. Remarks
\n
\n· Assessment is based on a 2 hr final exam (70%), two laboratory reports (20%), and midterm test (10%).
\n","Order":6},{"ID":"b7e16d46-442d-49c2-940a-62ff61bb8c92","Title":"Preclusions","Description":"Nil","Order":9},{"ID":"e45ab86c-6ce1-416f-8ac0-0a6e42cb795d","Title":"Workload","Description":"2.5-0.5-0.5-1.5-5
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A: no. of lecture hours per week \r\n
B: no. of tutorial hours per week \r\n
C: no. of lab hours per week \r\n
D: no. of hours for projects, assignments, fieldwork etc per week \r\n
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