Computational studies of light acceptance and propagation in straight and curved multimodal active fibres
A Monte Carlo simulation has been performed to track light rays in cylindrical multimodal fibres by ray optics. The trapping efficiencies for skew and meridional rays in active fibres and distributions of characteristic quantities for all trapped light rays have been calculated. The simulation provi...
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| Format: | Journal article |
| Language: | English |
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2003
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| _version_ | 1826294208122585088 |
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| author | Achenbach, C Cobb, J |
| author_facet | Achenbach, C Cobb, J |
| author_sort | Achenbach, C |
| collection | OXFORD |
| description | A Monte Carlo simulation has been performed to track light rays in cylindrical multimodal fibres by ray optics. The trapping efficiencies for skew and meridional rays in active fibres and distributions of characteristic quantities for all trapped light rays have been calculated. The simulation provides new results for curved fibres, where the analytical expressions are too complex to be solved. The light losses due to sharp bending of fibres are presented as a function of the ratio of curvature to fibre radius and bending angle. It is shown that a radius of curvature to fibre radius ratio of greater than 65 results in a light loss of less than 10% with the loss occurring in a transition region at bending angles of Φ ∼ π/8 rad. |
| first_indexed | 2024-03-07T03:42:05Z |
| format | Journal article |
| id | oxford-uuid:be3fba66-a8f3-48d4-a343-44f7641a06e8 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T03:42:05Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:be3fba66-a8f3-48d4-a343-44f7641a06e82022-03-27T05:37:48ZComputational studies of light acceptance and propagation in straight and curved multimodal active fibresJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:be3fba66-a8f3-48d4-a343-44f7641a06e8EnglishSymplectic Elements at Oxford2003Achenbach, CCobb, JA Monte Carlo simulation has been performed to track light rays in cylindrical multimodal fibres by ray optics. The trapping efficiencies for skew and meridional rays in active fibres and distributions of characteristic quantities for all trapped light rays have been calculated. The simulation provides new results for curved fibres, where the analytical expressions are too complex to be solved. The light losses due to sharp bending of fibres are presented as a function of the ratio of curvature to fibre radius and bending angle. It is shown that a radius of curvature to fibre radius ratio of greater than 65 results in a light loss of less than 10% with the loss occurring in a transition region at bending angles of Φ ∼ π/8 rad. |
| spellingShingle | Achenbach, C Cobb, J Computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| title | Computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| title_full | Computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| title_fullStr | Computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| title_full_unstemmed | Computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| title_short | Computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| title_sort | computational studies of light acceptance and propagation in straight and curved multimodal active fibres |
| work_keys_str_mv | AT achenbachc computationalstudiesoflightacceptanceandpropagationinstraightandcurvedmultimodalactivefibres AT cobbj computationalstudiesoflightacceptanceandpropagationinstraightandcurvedmultimodalactivefibres |