Engineering and design
Fibre Optic Communications
Module code: 831H1
Level 7 (Masters)
15 credits in spring teaching
Teaching method: Lecture
Assessment modes: Unseen examination
Topics covered in this module include:
- analysis of slab wave-guide
- analysis of step index fibre
- dispersion in the step index fibre
- mono-mode fibre
- propagation of light rays in multi-mode graded index fibres
- dispersion in graded index fibres
- light sources and detectors
- modulation of semiconductor light sources
- transfer characteristic and impulse response of fibre communication systems
- power launching and coupling efficiency
- receiver principles and signal-to noise ratio in analogue receivers
- receivers for digital optical fibre communication systems
- system noise
- system components and aspects of system design
- coherent optical fibre communication
- network systems.
Module learning outcomes
- Describe and analyse the different types of optical fibre, both multi-mode and single-mode, and how these effect the performance and design of a fibre optic communication system.
- Explain the operation, principles and application of laser diodes in fibre optic communication systems and how their design affects overall system performance.
- Describe and analyse the physical origin of the sources of noise in a fibre optic communications system and the effect they have on the system design
- Explain and analyse critically the detection methods and devices employed in fibre optic communications systems, including incoherent and coherent detection, and how these affect system design and performance.