Investigation of Nonlinear Effects in Optical Fibers
| dc.contributor.author | Regassa, Desta | |
| dc.date.accessioned | 2018-06-21T07:06:26Z | |
| dc.date.accessioned | 2023-11-09T11:23:24Z | |
| dc.date.available | 2018-06-21T07:06:26Z | |
| dc.date.available | 2023-11-09T11:23:24Z | |
| dc.date.issued | 2012-06 | |
| dc.description.abstract | Nonlinear e ects in optical ber occur either due to intensity dependence of refractive index of the medium and the e ects are an important e ects originated due to anharmonic motion of bound electrons under the in uence of an applied eld. The purpose of this thesis is to investigate nonlinearity due to higher order such as third and fth order harmonic polarization. Another aim is to nd out frequency chirp due to nonlinear e ect of self phase modulation. Finally, some parameters which are very important to plot the gure for frequency chirp and nonlinear polarization have to be calculated. In order to investigate nonlinearity in optical bers, we verify types of ber and its structure, loss mechanism in bers, some properties of light wave when its propagate through the bers like the relation between wave vector and frequency of the light, types of nonlinear e ects and threshold values in which self phase modulation of nonlinear e ect, frequency chirp and third order polarization. Generally we calculate third order nonlinear susceptibility which is the proper substitution for other odd order nonlinear polarization | en_US |
| dc.identifier.uri | http://10.90.10.223:4000/handle/123456789/2505 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Optical Fibers | en_US |
| dc.title | Investigation of Nonlinear Effects in Optical Fibers | en_US |
| dc.type | Thesis | en_US |