Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study
In this paper, numerical modelling of Parity-Time (PT) coupled waveguides is reported. The PT coupled waveguide structure consists of two coupled slab waveguides based on GaAs material with gain/loss material parameter models, including both dispersion and saturation. The numerical model used analys...
| Main Authors: | , , , , , |
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| Format: | Conference or Workshop Item |
| Published: |
2014
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| Online Access: | https://eprints.nottingham.ac.uk/28717/ |
| _version_ | 1848793629757276160 |
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| author | Phang, Sendy Vukovic, Ana Benson, Trevor M. Creagh, Stephen Sewell, Phillip Gradoni, Gabriele |
| author_facet | Phang, Sendy Vukovic, Ana Benson, Trevor M. Creagh, Stephen Sewell, Phillip Gradoni, Gabriele |
| author_sort | Phang, Sendy |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | In this paper, numerical modelling of Parity-Time (PT) coupled waveguides is reported. The PT coupled waveguide structure consists of two coupled slab waveguides based on GaAs material with gain/loss material parameter models, including both dispersion and saturation. The numerical model used analyses the impact of dispersion and saturation on the eigenmode extracted by a curve fitting approach. The results show that the presence of saturation may prohibit the appearance of the threshold point above which the PT system becomes unstable. |
| first_indexed | 2025-11-14T19:03:20Z |
| format | Conference or Workshop Item |
| id | nottingham-28717 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:03:20Z |
| publishDate | 2014 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-287172020-05-04T20:17:31Z https://eprints.nottingham.ac.uk/28717/ Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study Phang, Sendy Vukovic, Ana Benson, Trevor M. Creagh, Stephen Sewell, Phillip Gradoni, Gabriele In this paper, numerical modelling of Parity-Time (PT) coupled waveguides is reported. The PT coupled waveguide structure consists of two coupled slab waveguides based on GaAs material with gain/loss material parameter models, including both dispersion and saturation. The numerical model used analyses the impact of dispersion and saturation on the eigenmode extracted by a curve fitting approach. The results show that the presence of saturation may prohibit the appearance of the threshold point above which the PT system becomes unstable. 2014 Conference or Workshop Item PeerReviewed Phang, Sendy, Vukovic, Ana, Benson, Trevor M., Creagh, Stephen, Sewell, Phillip and Gradoni, Gabriele (2014) Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study. In: Transparent Optical Networks (ICTON), 2014 16th International Conference on, 6-10 July 2014, Graz, Austria. http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6876685 |
| spellingShingle | Phang, Sendy Vukovic, Ana Benson, Trevor M. Creagh, Stephen Sewell, Phillip Gradoni, Gabriele Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| title | Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| title_full | Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| title_fullStr | Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| title_full_unstemmed | Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| title_short | Saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| title_sort | saturable and dispersive parity-time symmetric directional coupler: a transmission-line modelling study |
| url | https://eprints.nottingham.ac.uk/28717/ https://eprints.nottingham.ac.uk/28717/ |