An Investigation of Attenuation and Dispersion in Propagation Mode Characteristics of Optical Fiber Material Leading to Non-linearity
| dc.contributor.advisor | Ghoshal S.K. (PhD) | |
| dc.contributor.author | Getachew Belay | |
| dc.date.accessioned | 2018-07-12T07:20:49Z | |
| dc.date.accessioned | 2023-11-18T09:53:14Z | |
| dc.date.available | 2018-07-12T07:20:49Z | |
| dc.date.available | 2023-11-18T09:53:14Z | |
| dc.date.issued | 2009-06 | |
| dc.description.abstract | Study of non-linearity in optical fiber material has attracted tremendous attention over last two decades. Despite of many experimental and theoretical efforts to find the origin of non-linearity and to quantify the loss due to non-linearity still a debatable issue. The aim of this research work is to find a mechanism and to quantify to non-linearity that causes attenuation and dispersion in optical fiber. We specifically calculated solution to non-linear envelope equation (non-linear Schrödinger equation) from Maxwell theory choosing appropriate envelope function. Our calculations are in agreement with other observation as far as loss and non-linearity concerned. We found the soliton solution that is a very interesting result that can be further looked at in detail to observe the non-linear effect in fiber material. It is found that the non-linearity balances dispersion and a stable pulse is formed which does not alter its shape during propagation. This simple calculation is to understand the mechanism of the origin of non-linearity how to further control it by tuning some of the fiber material. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/8234 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa Universty | en_US |
| dc.subject | Non-linearity | en_US |
| dc.title | An Investigation of Attenuation and Dispersion in Propagation Mode Characteristics of Optical Fiber Material Leading to Non-linearity | en_US |
| dc.type | Thesis | en_US |