Brillouin characterisation of optical microfibers
The sleek shape of microfiber helps it to confine the light tightly and generate high nonlinear effect, which is 1000 times higher than the standard fiber. This project focuses on fabricating microfiber samples with different taper lengths and different waist diameter from three different kinds of f...
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my-mmu-ep.62822016-01-19T08:16:11Z Brillouin characterisation of optical microfibers 2015-09 Farhan, Kazi Tasneem TK7800-8360 Electronics The sleek shape of microfiber helps it to confine the light tightly and generate high nonlinear effect, which is 1000 times higher than the standard fiber. This project focuses on fabricating microfiber samples with different taper lengths and different waist diameter from three different kinds of fiber, single mode fiber (SMF), Gedoped and Ga-doped. All the samples were characterised in terms of Brillouin scattering and Brillouin gain and Brillouin lasing, and compared to each other and to the SMF fiber. Stimulated Brillouin scattering (SBS) has been demonstrated for short microfibers of length less than 10cm. The nonlinear effects of long tapers have not been reported yet. The theoretical perspective related to microfibers indicate the possibility of generation of stronger signals and newer frequencies. Among the many nonlinear effects Brillouin scattering is the easiest to observe and has not been studied using long microfibers until now. In this project microfibers of different lengths and waist diameter are fabricated. The microfibers were made from three different kinds of fiber: SMF, Germanium doped (Ge-doped) and Gallium doped (Ga-doped). The shapes of the fabricated samples are profiled to match the shape with the numerically simulated shape. The power performances are studied so that samples with minimum losses are used for Brillouin characterisation. The first experiment uses the microfiber samples for testing and recording the changes in Stokes generation for the different dimensions of each sample in a Brillouin scattering setup. These microfibers are tested in s second experiment of Brillouin laser setup to explore their possibilities of lasing. In the third experiment the microfibers are used in a pump probe technique setup to spatially measure the Brillouin gain along the length of each sample. 2015-09 Thesis http://shdl.mmu.edu.my/6282/ http://library.mmu.edu.my/diglib/onlinedb/dig_lib.php masters Multimedia University Faculty of Engineering |
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Multimedia University |
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MMU Institutional Repository |
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TK7800-8360 Electronics |
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TK7800-8360 Electronics Farhan, Kazi Tasneem Brillouin characterisation of optical microfibers |
| description |
The sleek shape of microfiber helps it to confine the light tightly and generate high nonlinear effect, which is 1000 times higher than the standard fiber. This project focuses on fabricating microfiber samples with different taper lengths and different waist diameter from three different kinds of fiber, single mode fiber (SMF), Gedoped and Ga-doped. All the samples were characterised in terms of Brillouin scattering and Brillouin gain and Brillouin lasing, and compared to each other and to the SMF fiber. Stimulated Brillouin scattering (SBS) has been demonstrated for short microfibers of length less than 10cm. The nonlinear effects of long tapers have not been reported yet. The theoretical perspective related to microfibers indicate the possibility of generation of stronger signals and newer frequencies. Among the many nonlinear effects Brillouin scattering is the easiest to observe and has not been studied using long microfibers until now. In this project microfibers of different lengths and waist diameter are fabricated. The microfibers were made from three different kinds of fiber: SMF, Germanium doped (Ge-doped) and Gallium doped (Ga-doped). The shapes of the fabricated samples are profiled to match the shape with the numerically simulated shape. The power performances are studied so that samples with minimum losses are used for Brillouin characterisation. The first experiment uses the microfiber samples for testing and recording the changes in Stokes generation for the different dimensions of each sample in a Brillouin scattering setup. These microfibers are tested in s second experiment of Brillouin laser setup to explore their possibilities of lasing. In the third experiment the microfibers are used in a pump probe technique setup to spatially measure the Brillouin gain along the length of each sample. |
| format |
Thesis |
| qualification_level |
Master's degree |
| author |
Farhan, Kazi Tasneem |
| author_facet |
Farhan, Kazi Tasneem |
| author_sort |
Farhan, Kazi Tasneem |
| title |
Brillouin characterisation of optical microfibers |
| title_short |
Brillouin characterisation of optical microfibers |
| title_full |
Brillouin characterisation of optical microfibers |
| title_fullStr |
Brillouin characterisation of optical microfibers |
| title_full_unstemmed |
Brillouin characterisation of optical microfibers |
| title_sort |
brillouin characterisation of optical microfibers |
| granting_institution |
Multimedia University |
| granting_department |
Faculty of Engineering |
| publishDate |
2015 |
| _version_ |
1747829620698251264 |