Course syllabus

Högpresterande fibernät
High Performance Fiber Networks

EITP10, 7,5 credits, A (Second Cycle)

Valid for: 2019/20
Decided by: PLED C/D
Date of Decision: 2019-04-01

General Information

Elective for: C4-ks, D4-ns, E4, F4, MWIR2
Language of instruction: The course will be given in English


The aim of the course is to give a deep understanding in how fiber networks are built and how they work in different parts of the communication chain. The student will get an understanding of how the networks are constructed and what requirements there are on the transmission, depending on which part of the network is considered. From that they should be able to decide what type of fibre technology is appropriate and why. They should have an understanding of how fibre technology is constructed, from the physical units up to the network architectures. They will also get knowledge about management of the networks, as well as how new networks are deployed.

Learning outcomes

Knowledge and understanding
For a passing grade the student must

Competences and skills
For a passing grade the student must

Judgement and approach
For a passing grade the student must



New services like 5G shopping, digital industries or cloud robotics bring new challenges for the networks, like increased data rates for 4K video or increased requirements on latencies for 5G services, requirements that can only be met by fiber networks. The course will give insights of how modern networks are designed, both fixed access networks and mobile networks, to handle these requirements. This gives requirements on the different parts of the network, which in most cases only can be handled by fiber optical communication.

Architecture and topology

The architecture in the fiber networks is based on the different structures; ring, point-to-point (P2P), point-to-multi-point (P2MP). These structures have different characteristics and are suitable for different purposes. For short connections with high requirements on data rate and latency, such as data centers and mobile fronthaul, mainly P2P is used, while for example the access networks with cables up to 10 km are built with either P2P or P2MP, so called Passive Optical Network (PON). The core networks are often built using rings in combination with wavelength multiplexing (WDM) to seprate the traffic. The course illustrates the pros and cons for the technologies at given situations.

Optical elements

There are two main categories of elements, passive and active. The passive components are based on optical properties. Here, for example, are the fiber itself, splitters (i.e. MUX/deMUX) and optical filters. The active components are e.g. lasers, receivers, amplifiers and switches. The course gives and understanding of how these elements are used, as well as their properties and how they are constructed. The course also treats technologies that further can enhance the data rates, such as higher modulations.

Management and monitoring

For network management and network optimisation methods, it is vital to read in relevant data from the networks, so called monitoring. For this either passive or active methods can be used, which is true for all networks. The course will treat different fiber monitoring methods to measure e.g. power spectrum, wave length and polarisation of the light. Also active methods will be treated, such as Optical Time Domain Relectometry (OTDR).


Unlike Internet access using existing infrastructure, such as the telephony loop or the cable TV network, fibre deployment means new infrastructure installations. Already in the late 90s large scale installments were started, and it was said all homes should have a fiber connection. Since then different initiatives has started, but also stopped when the actual costs of the installation has become clear. The course will give an understanding of how deployment and installation of fiber based access is done in practice, and what type of costs are connected with it.

Examination details

Grading scale: TH - (U,3,4,5) - (Fail, Three, Four, Five)
Assessment: Approved course requires approved hand in problems and projects.

The examiner, in consultation with Disability Support Services, may deviate from the regular form of examination in order to provide a permanently disabled student with a form of examination equivalent to that of a student without a disability.

Code: 0118. Name: Hand-in Assignments.
Credits: 5. Grading scale: TH. Assessment: Approved hand in problems and active participation in discussions Contents: Web based examination in form of hand in problems and discussions
Code: 0218. Name: Project.
Credits: 2,5. Grading scale: UG. Assessment: Approved participation in projects Contents: Mini projects


Required prior knowledge: A basic course in communication systems, such as EITF45 Data Communications, EITA55 Communication Systems, ETSF15 Communication Systems and Networks or EITF25 Internet - Technology and Applications.
The number of participants is limited to: No

Reading list

Contact and other information

Course coordinator: Stefan Höst,