This course explains the basic principles of optical fibre transmission and the factors that limit the performance of a link, describes the main components of optical links and the hazards of optical sources, and shows how the power budget of a link is calculated.
This course assumes a basic understanding of digital transmission and the use of decibels. It is recommended that the course SRA: ""Analogue and digital signals"" is studied before attempting this course.
This e-learning course has a comprehensive range of interactive training facilities to provide a total learning experience. Technical words and acronyms have links to an online glossary giving an instant explanation. Interactive simulations explain concepts and systems operation. Onscreen question sessions at the end of each module test understanding and provide further guidance and instruction. Revision links provide quick access to subjects previously discussed and relevant to the module being studied. Once studied as a structured, assessed course, the content can be browsed for revision or reference.
By the end of this course you will be able to:
- describe the basic structure of an optical fibre and explain how infrared energy is propagated down the core of a fibre.
- describe the causes and effect of modal, chromatic and polarisation mode dispersion.
- describe the structure of different types of glass fibre (including multimode and single mode fibres) and compare their characteristics.
- explain that OSI/IEC and ITU standards exist which specify the characteristics and capabilities of various types of multimode and singlemode fibre.
- describe the features, characteristics and uses of different types of fibre connection including demountable connectors and fusion splices.
- describe the components of an optical link including lasers and Light Emitting Diodes (LEDs) and the role of Optical Line Terminating Equipment (OLTE), regenerators and optical amplifiers.
- explain the significance of the IEC classification of optical sources according to the hazard they present.
- explain the main causes of optical loss in a fibre transmission system and discuss methods of minimising those losses.
- calculate the power budget of an optical link taking into account factors such as system margin and dispersion penalty.
- describe the principles of wavelength division multiplexing (WDM) and compare coarse and dense WDM.
1: Course Introduction
2: Optical communications
3: Causes and effects of dispersion
4: Optical fibre loss
5: Types of optical fibre
6: Optical links
7: Connectors and splices
8: Power budgets
Before attending specialised trouble-shooting training sessions, staff at Belgacom now study learntelecoms e-learning courses.
"The advantage of the e-learning formula for the introduction training was that at the end of the e-learning courses all participants in the "advanced" module had the same level of knowledge. This was greatly appreciated by the participants"
- Gino Van de Sompel, training and development consultant at Belgacom
Cost effective training for Jersey Telecom
"As a communications service provider based "off shore" we have found that the e-learning courses provide high quality and excellent content training to our engineers without the need to arrange expensive flights out of the island
truly cost effective"
- Bill Barker, training and development manager, Jersey Telecom
Real world training for eircom
"Three factors led us to select e-learning: the courses use European jargon and bit rates, they are obviously written by telecoms professionals with real world insight and the interactions are well thought out"
- Richard Downey, e-learning manager, eircom plc