Course

code	EC524
credit_hours	3
title	Optical Communications
arbic title
prequisites	EC422
credit hours	3
Description/Outcomes	Selected topics in optical communications.
arabic Description/Outcomes
objectives	Theory of light propagation in optical fibers with different types. Overview of opto-electronic device requirements for communication systems, including light sources, optical amplifiers and light detectors. Adjustment of a complete optical communication system.
arabic objectives
ref. books	Gerd Keiser, "Optical Fiber Communications". Joseph C. Palais, "Fiber Optic Communications".
arabic ref. books
textbook	Jhon M. Senior, "Optical communication: principles and practical".
arabic textbook
objective set	bullets
content set	bullets

Course Content

content serial	Description
1	Historical development: Historical background on communications, communication channels, light sources and detectors. General optical communication system. Advantages of optical fiber communications.
2	Optical Fiber Waveguide: Ray theory transmission, Fiber acceptance angle and numerical aperture. Fiber types: step index ? graded index ? single mode ? multimode.
3	Electromagnetic theory for optical propagation ? Normalized frequency of the optical fiber - Linearly polarized modes in optical fibers.
4	Transmission Characteristics in Optical Fibers: Polarization ? Attenuation: absorption, scattering, macrobending and microbending.
5	Transmission Characteristics in Optical Fibers: Dispersion: definition and types ? Bit rate calculation ? Material and Waveguide Dispersion.
6	Dispersion modified single-mode optical fibers - Intramodal dispersion ? Overall dispersion.
7	Fiber Fabrication ? Fiber Cable Design ? Fiber Connection: Couplers.
8	Fiber Connection: Fiber splicing ? Joint Loss: Fresnel reflection.
9	Optical Sources: Requirements of light sources - Concept of light emission ? spontaneous emission ? stimulated emission ? LED operation.
10	Laser: Operation and types - Injection laser diode ? Optical source limitations.
11	Analogy between mechanical and electrical circuits: Velocity of sound in air and water and metal, Analogy between acoustical and electrical circuits.
12	Acoustical resonators and filters: Acoustical resonator and filters, Transducer +12th Week Exam
13	Transducers and sensitivity of microphones and Loudspeakers: Sensitivity and types of mics, Efficiency and types of Loudspeakers, hi-fi multispeaker system.
14	Hi-fi system and underwater acoustics: Introduction to underwater acoustics, Velocity of sound in seawater, Sound transmission loss in seawater.
15	Velocity profile and SONAR: Thermocline and velocity profiles, Refraction of sound in seawater, SONAR.
16	Final Examination