Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings
We report on the impact of realistic gain and loss models on the bistable operation of nonlinear parity–time (PT) Bragg gratings. In our model we include both dispersive and saturable gain and show that levels of gain/loss saturation can have a significant impact on the bistable operation of a nonli...
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| Format: | Article |
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Optical Society of America
2014
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| Online Access: | https://eprints.nottingham.ac.uk/28714/ |
| _version_ | 1848793628921561088 |
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| author | Phang, Sendy Vukovic, Ana Susanto, Hadi Benson, Trevor M. Sewell, Phillip |
| author_facet | Phang, Sendy Vukovic, Ana Susanto, Hadi Benson, Trevor M. Sewell, Phillip |
| author_sort | Phang, Sendy |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We report on the impact of realistic gain and loss models on the bistable operation of nonlinear parity–time (PT) Bragg gratings. In our model we include both dispersive and saturable gain and show that levels of gain/loss saturation can have a significant impact on the bistable operation of a nonlinear PT Bragg grating based on GaAs material. The hysteresis of the nonlinear PT Bragg grating is analyzed for different levels of gain and loss and different saturation levels. We show that high saturation levels can improve the nonlinear operation by reducing the intensity at which the bistability occurs. However, when the saturation intensity is low, saturation inhibits the PT characteristics of the grating. |
| first_indexed | 2025-11-14T19:03:20Z |
| format | Article |
| id | nottingham-28714 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:03:20Z |
| publishDate | 2014 |
| publisher | Optical Society of America |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-287142020-05-04T16:46:28Z https://eprints.nottingham.ac.uk/28714/ Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings Phang, Sendy Vukovic, Ana Susanto, Hadi Benson, Trevor M. Sewell, Phillip We report on the impact of realistic gain and loss models on the bistable operation of nonlinear parity–time (PT) Bragg gratings. In our model we include both dispersive and saturable gain and show that levels of gain/loss saturation can have a significant impact on the bistable operation of a nonlinear PT Bragg grating based on GaAs material. The hysteresis of the nonlinear PT Bragg grating is analyzed for different levels of gain and loss and different saturation levels. We show that high saturation levels can improve the nonlinear operation by reducing the intensity at which the bistability occurs. However, when the saturation intensity is low, saturation inhibits the PT characteristics of the grating. Optical Society of America 2014-04-21 Article PeerReviewed Phang, Sendy, Vukovic, Ana, Susanto, Hadi, Benson, Trevor M. and Sewell, Phillip (2014) Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings. Optics Letters, 39 (9). pp. 2603-2606. ISSN 0146-9592 Optical amplifiers; Nonlinear optics; Bistability http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-39-9-2603 doi:10.1364/OL.39.002603 doi:10.1364/OL.39.002603 |
| spellingShingle | Optical amplifiers; Nonlinear optics; Bistability Phang, Sendy Vukovic, Ana Susanto, Hadi Benson, Trevor M. Sewell, Phillip Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings |
| title | Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings |
| title_full | Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings |
| title_fullStr | Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings |
| title_full_unstemmed | Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings |
| title_short | Impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time Bragg gratings |
| title_sort | impact of dispersive and saturable gain/loss on bistability of nonlinear parity-time bragg gratings |
| topic | Optical amplifiers; Nonlinear optics; Bistability |
| url | https://eprints.nottingham.ac.uk/28714/ https://eprints.nottingham.ac.uk/28714/ https://eprints.nottingham.ac.uk/28714/ |