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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

Authors

Sendy Phang

Ana Vukovic

Hadi Susanto

Trevor M. Benson

Phillip Sewell



Abstract

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.

Journal Article Type Article
Publication Date May 1, 2014
Journal Optics Letters
Print ISSN 0146-9592
Electronic ISSN 1539-4794
Publisher Optical Society of America
Peer Reviewed Peer Reviewed
Volume 39
Issue 9
Pages 2603-2606
APA6 Citation Phang, S., Vukovic, A., Susanto, H., Benson, T. M., & Sewell, P. (2014). Impact of dispersive and saturable gain/loss on bistability of nonlinear parity–time Bragg gratings. Optics Letters, 39(9), 2603-2606. https://doi.org/10.1364/ol.39.002603
DOI https://doi.org/10.1364/ol.39.002603
Keywords Optical amplifiers; Nonlinear optics; Bistability
Publisher URL http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-39-9-2603
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfoba...t.cfm?uri=ol-39-9-2603. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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