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Module Specifications..

Current Academic Year 2023 - 2024

Please note that this information is subject to change.

Module Title Photonic Devices
Module Code EE506
School School of Electronic Engineering
Module Co-ordinatorSemester 1: Pascal Landais
Semester 2: Pascal Landais
Autumn: Pascal Landais
Module TeachersPascal Landais
NFQ level 9 Credit Rating 7.5
Pre-requisite None
Co-requisite None
Compatibles None
Incompatibles None
Repeat examination

The use of semiconductor devices in optical communications and the recent development in semiconductor materials have brought up the need to understand the technology of these components. This module aims to equip students with a deep understanding of the science of these devices and their integration in optical communication networks.

Learning Outcomes

1. select semiconductor materials for light emission and detection applications based on an understanding of photoemission photoabsorption and band structure.
2. be capable of solving various problems related to light emitting and light detecting device designs.
3. mathematically analyse various types of semiconductor lasers and detectors.
4. identify key principles of optical communication devices.
5. identify and distinguish various optical data processing schemes.
6. identifiy growth and processing technologies for light emitter and detector fabrication
7. analyse the propagation of an electromagnetic wave in free space, at a media interfaces, and in various guides.

Workload Full-time hours per semester
Type Hours Description
Lecture36No Description
Independent Study151No Description
Total Workload: 187

All module information is indicative and subject to change. For further information,students are advised to refer to the University's Marks and Standards and Programme Specific Regulations at: http://www.dcu.ie/registry/examinations/index.shtml

Indicative Content and Learning Activities

Duality of light
Description of light as an electromagnetic wave. Introduction from Maxwell's equation to Helmholtz's equation. Limitation of the electromagnetic approach, introduction of the quantum aspect of light. Definition of photon.

Interaction light matter
Derivation of Einstein's coefficent. Conditions for light emission or detection.Optical properties of semiconductors materials, definition of band-gap direct or indirect and their use for light emission and detection.

Physics of semiconductor devices
Features of various types of light-emitting diode, lasers and semiconductor amplifiers. Overview of LED/LASER manufacturing. Physics of double hetero-junction lasers: their simulation based on rate-equation in time and frequency domains, noise origin and simulation. Physics of light detectors, photodiode and avalanche photodiode, sensitivity, response time, wavelength selection using optical filters, bandwidth and insertion loss of optical filters.

Use of semiconductor lasers for telecommunications
Short pulse generation by Q-switching and passive or active mode-locking schemes. Physics of external modulators. All optical function generated by semiconductor lasers, wavelength cobnversion, and clock recovery for instance. Applications of semiconductor devices in OTDM or WDM.

Semiconductor material
Overview of active materials bulk, quantum well, wire dot and quatum dot. description of photonics band-gap materials

Assessment Breakdown
Continuous Assessment25% Examination Weight75%
Course Work Breakdown
TypeDescription% of totalAssessment Date
Performance evaluationSeries of questions to be solved25%
Reassessment Requirement Type
Resit arrangements are explained by the following categories;
1 = A resit is available for all components of the module
2 = No resit is available for 100% continuous assessment module
3 = No resit is available for the continuous assessment component
This module is category 3
Indicative Reading List

  • G.P. Agrawal and N.K. Dutta: 0, Long wavelength semiconductor laser, van Nostrand,
  • J. Wilson and J. Hawkes: 0, Optoelectronics an introduction, Prentice Hall,
  • Midwinter, J.E: 0, Opto Electronics and Lightwave Technology, Wiley,
  • Saleh, B.E. & Teich, M.: 0, Fundamentals of Photonics, Wiley,
Other Resources

Programme or List of Programmes
ECEIMMasters of Eng in Elec & Comp Eng
ECSAOStudy Abroad (Engineering & Computing)
GCECEGrad Cert. in Electronic & Computer Eng
GTECGraduate Training Visitor Program (E&C)
MCMECMicro-Credential Modules Eng & Comp
MECEMEng Electronic & Computer Engineering
MEQMasters Engineering Qualifier Course
SMPECSingle Module Programme (Eng & Comp)
Date of Last Revision25-JUL-08

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