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Advanced Optical Communications Systems

Code: PDEEC0061     Acronym: AOCS

Classification Keyword
OFICIAL Electrical and Computer Engineering

Instance: 2019/2020 - 2S

Active? Yes
Responsible unit: Department of Electrical and Computer Engineering
Course/CS Responsible: Doctoral Program in Electrical and Computer Engineering

Cycles of Study/Courses

Acronym No. of Students Study Plan Curricular Years Credits UCN Credits ECTS Contact hours Total Time
PDEEC 0 Syllabus since 2015/16 1 - 7,5 70 202,5

Teaching - Hours

Recitations: 3,00

Teaching language



This course aims to present the state of the art in optical communication systems, either digital or analog, presenting the fundamental concepts needed for system design. Emphasis will be given to high bit-rate systems with optical amplification and next-generation optical networks (networks of transport and access), presenting technological solutions to overcome the current limitations of fiber and devices.

Learning outcomes and competences

Understanding the specific characteristics of the optical fiber transmission systems, its advantages and limitations.
- Knowledge of project-oriented optical communication systems
- Ability to search for information on research in advanced optical systems and networks for future generation
- Capacity Analysis, simulation and design of such systems

Learning outcomes are acquiring the skills oriented to the project as well as the ability to identify relevant topics for research in networks and next generation optical systems.

Working method



Optical amplifiers
- Semiconductor amplifiers, EDFA.
- Erbium doped fiber amplifier (EDFA): analysis of gain, saturation and noise; applications.
- Analysis of preamplified optical receivers; systems with chains EDFA amplifiers.
- Raman amplification, amplification versus localized distributed amplification.

Dispersion and nonlinear effects.
- Analysis of the impulse propagation in fiber and interaction between the dispersion and nonlinear effects.
- Propagation of solitons.
- Management of dispersion in optical systems.

Multichannel systems and optical networks multiaccess
- Components and WDM systems.
- Devices and multiaccess topologies.
- Distribution of radio-frequency and microwave signals over fiber optics.
- Networks passive optical access network.

Advanced optical systems and high speed
- Modulation Formats: duo-binary PSK, QAM
- Polarization Division Multiplexing
- Spectral Efficiency
- Comparison of coherent and non-coherent detection techniques.

Mandatory literature

Govind P. Agrawal; Fiber-optic communication systems. ISBN: 0-471-21571-6
Govind P. Agrawal.; Nonlinear fiber optics. ISBN: 0120451433 (acid-free paper)

Complementary Bibliography

edited by Ivan P. Kaminow, Tingye Li.; Optical fiber telecommunications IV. ISBN: 0123951720 (A : alk. paper)

Teaching methods and learning activities

Lectures for exposition of course topics and presentation of research papers by students.
Classes laboratory practices for conducting simulation studies based on commercial software.


VPI Photonics


Technological sciences > Technology > Communication technology

Evaluation Type

Distributed evaluation with final exam

Assessment Components

Designation Weight (%)
Exame 40,00
Participação presencial 0,00
Prova oral 15,00
Trabalho escrito 30,00
Trabalho laboratorial 15,00
Total: 100,00

Amount of time allocated to each course unit

Designation Time (hours)
Apresentação/discussão de um trabalho científico 20,00
Estudo autónomo 100,00
Frequência das aulas 52,00
Trabalho escrito 30,00
Total: 202,00

Eligibility for exams

Minimum grade of 7(out of 20) in the final exam.

Calculation formula of final grade

The assessment of the course comprises the following elements:

- (O) Oral presentation of selected articles
- (R) Reports of practical simulation works
- (M) Monograph on a topic of concerned with the course subject
- (E) Final Exam

Final rating: 15%×A+15%×R+30%×M+40%×E
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