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Electrical Engineering Department
Faculty of Engineering
Alexandria University

EE365: Optical Devices

Lecturer: Ziad A. El-Sahn



This course introduces fundamental concepts and basics of optical semiconductor devices, and their applications in optical communication systems. Topics include light emitting diodes (LEDs), Fabry-Perot and distributed feedback (DFB) laser diodes (LDs), p-i-n and avalanche photodiodes. Other optical devices such as modulators, amplifiers, filters and couplers may also be briefly covered.

Teaching Load (Spring 2017)

- Lectures (3 hours), Tutorials (1 hour), Lab (1 hour)
- Office Hours: Monday from 10:00 am to 12:00 pm
- Teaching Assistant: Eng. Rodaina Gamal and Eng. Mai Fouad


1- Basic Concepts

- Emission and Absorption Rates
Semiconductor Materials and p-n Junctions
- Internal Quantum Efficiency

2- Light-Emitting Diodes

- Power-Current Characteristics
- LED Spectrum
- Modulation Response
- LED Structures

3- Semiconductor Lasers

- Principle of Operation
- Laser Structures and Confinement
- Control of Longitudinal Modes
- Laser Characteristics

4- Highlights on Transmitter Design

5- Photodetectors

- Basic Concepts
- Common Photodiodes
- Receiver Design
- Receiver Noise and Sensitivity

6- Recent Trends in Optics/Photonics

- Optical Communications
- Devices and Silicon Photonics


- Govind P. Agrawal, Fiber-Optic Communication Systems, 4th Edition, John Wiley & Sons, Inc., 2010.
- John M. Senior, Optical Fiber Communications: Principles and Practice, 3rd Edition, Prentice Hall, 2009.


Lecture 1: Introduction to Optical Devices and Optical Communications [PDF]
Lecture 2: Optical Processes, Semiconductor p-n Junctions, Internal Quantum Efficiency [PDF]
Lecture 3: Light-Emitting Diodes - CW Characteristics [PDF]
Lecture 4: LED Modulation and Structures - Lasers Principles and Structures [PDF]
Lecture 5: Control of Longitudinal Modes - Laser Characteristics [PDF]
Lecture 6: Design of Optical Transmitters - External Modulators [PDF]

* The other part of the course is given by Prof. Hossam Shalaby [URL]

Assignments: [Basic Concepts]

Research Project: Click here for detailed information and important deadlines...


Distribution of a total mark of 125:

- Mid-Term Exam (15 marks): 60 minutes, closed book exam
- Class Work and Lab (35 marks)
- Final Exam (75 marks): 3 hours, closed book exam


© Copyright 2005-2017, Ziad A. El-Sahn  |  Last updated: March 27, 2017