Power budget analysis for broadcast passive optical network
Optical fibre technology is vital for broadband communication and multimedia applications because single-mode optical fibres have a very low attenuation and a vast bandwidth at 1.3|im and 1.55|im wavelengths regions. The ever increasing demand for high speed data transmission and multimedia ap...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
1999
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7668/1/24p%20MOHAMMAD%20FAIZ%20LIEW%20ABDULLAH.pdf http://eprints.uthm.edu.my/7668/ |
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| Summary: | Optical fibre technology is vital for broadband communication and multimedia
applications because single-mode optical fibres have a very low attenuation and a vast
bandwidth at 1.3|im and 1.55|im wavelengths regions. The ever increasing demand for
high speed data transmission and multimedia applications will inevitably results in
optical fibre communication being used to replace copper cables all the way to the
subscriber's home. A long term saving in maintenance cost can also be expected. This
thesis presents an idealised mathematical model of the power requirement of a simple
broadcast Fibre To The Home (FTTH) network based on the bus, star and bus-star
topologies. Power requirement at central office (CO) is one of the main parameters that
must be taken into consideration by system designers in their planning for the
implementation of FTTH. A mathematical model was developed for each of the
topology, which relates the power needed at the CO to the parameters of the network
such as fibre loss, coupling loss, splitters loss, detection method and signal quality. This
software package requires input specifications from the designer, and the output is a
complete power budget analysis in a graphical form which can be used to understand the
behaviour of each topology related to its power requirement. The numerical results show
close agreement with manual power budget calculation using the same set of input
parameters. The results can serve as useful guidance for system designers to evaluate the
capability at the central office. However, apart from the limited topologies, the software
concentrates mainly on one way transmission and limited modulation techniques. Future
improvement can be implemented based on the software developed in this thesis. |
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