Modelling chaos in asymmetric optical fibres
A ray dynamical approach is developed for the study of large-core asymmetric step index fibres (SIF), especially those made from chalcogenide glasses (ChGs) which can exhibit very high refractive index, large numerical aperture, and which are transparent at mid-infrared wavelengths. The model allows...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
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IEEE
2017
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| Online Access: | https://eprints.nottingham.ac.uk/44308/ |
| _version_ | 1848796886495920128 |
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| author | Kumar, D.S. Creagh, Stephen C. Sujecki, S. Benson, Trevor M. |
| author_facet | Kumar, D.S. Creagh, Stephen C. Sujecki, S. Benson, Trevor M. |
| author_sort | Kumar, D.S. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A ray dynamical approach is developed for the study of large-core asymmetric step index fibres (SIF), especially those made from chalcogenide glasses (ChGs) which can exhibit very high refractive index, large numerical aperture, and which are transparent at mid-infrared wavelengths. The model allows for deformations of the SIF away from concentric circular structures, and for the light rays captured by the fibre to behave chaotically within the asymmetric boundaries of the fibre. Chaotic and periodic rays can be classified by the Poincaré surface of sections (SOSs). In the model, the ray dynamics in the SIF are approximated by dividing the SOSs into pixels; the construction of a transfer matrix stores all the mapping probabilities. The light intensity distribution in the SOSs is efficiently propagated using the constructed transfer matrix, providing a viable alternative to propagating all the rays in the SIF by brute force ray tracing. The model enables the rapid calculation of the power accumulated in the fibre core following an arbitrary excitation. |
| first_indexed | 2025-11-14T19:55:06Z |
| format | Conference or Workshop Item |
| id | nottingham-44308 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:55:06Z |
| publishDate | 2017 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-443082020-05-04T19:04:46Z https://eprints.nottingham.ac.uk/44308/ Modelling chaos in asymmetric optical fibres Kumar, D.S. Creagh, Stephen C. Sujecki, S. Benson, Trevor M. A ray dynamical approach is developed for the study of large-core asymmetric step index fibres (SIF), especially those made from chalcogenide glasses (ChGs) which can exhibit very high refractive index, large numerical aperture, and which are transparent at mid-infrared wavelengths. The model allows for deformations of the SIF away from concentric circular structures, and for the light rays captured by the fibre to behave chaotically within the asymmetric boundaries of the fibre. Chaotic and periodic rays can be classified by the Poincaré surface of sections (SOSs). In the model, the ray dynamics in the SIF are approximated by dividing the SOSs into pixels; the construction of a transfer matrix stores all the mapping probabilities. The light intensity distribution in the SOSs is efficiently propagated using the constructed transfer matrix, providing a viable alternative to propagating all the rays in the SIF by brute force ray tracing. The model enables the rapid calculation of the power accumulated in the fibre core following an arbitrary excitation. IEEE 2017-09-04 Conference or Workshop Item PeerReviewed Kumar, D.S., Creagh, Stephen C., Sujecki, S. and Benson, Trevor M. (2017) Modelling chaos in asymmetric optical fibres. In: 19th International Conference on Transparent Optical Networks (ICTON), 2-6 July 2017, Girona, Spain. Surface of sections chaos chalcogenide glasses mid-infrared photonics step index fibre http://ieeexplore.ieee.org/abstract/document/8024908/ doi:10.1109/ICTON.2017.8024908 doi:10.1109/ICTON.2017.8024908 |
| spellingShingle | Surface of sections chaos chalcogenide glasses mid-infrared photonics step index fibre Kumar, D.S. Creagh, Stephen C. Sujecki, S. Benson, Trevor M. Modelling chaos in asymmetric optical fibres |
| title | Modelling chaos in asymmetric optical fibres |
| title_full | Modelling chaos in asymmetric optical fibres |
| title_fullStr | Modelling chaos in asymmetric optical fibres |
| title_full_unstemmed | Modelling chaos in asymmetric optical fibres |
| title_short | Modelling chaos in asymmetric optical fibres |
| title_sort | modelling chaos in asymmetric optical fibres |
| topic | Surface of sections chaos chalcogenide glasses mid-infrared photonics step index fibre |
| url | https://eprints.nottingham.ac.uk/44308/ https://eprints.nottingham.ac.uk/44308/ https://eprints.nottingham.ac.uk/44308/ |