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Ultrafast optical switching using parity-time symmetric 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

This paper reports on time-domain modeling of an optical switch based on the parity–time (PT) symmetric Bragg grating. The switching response is triggered by suddenly switching on the gain in the Bragg grating to create a PT-symmetric Bragg grating. Transient and dynamic behaviors of the PT Bragg gratings are analyzed using the time-domain numerical transmission line modeling method including a simple gain saturation model. The on/off ratio and the switching time of the PT Bragg grating optical switch are analyzed in terms of the level of gain introduced in the system and the operating frequency. The paper also discusses the effect the gain saturation has on the operation of the PT-symmetric Bragg gratings.

Journal Article Type Article
Publication Date Oct 25, 2013
Journal Journal of the Optical Society of America B
Print ISSN 0740-3224
Electronic ISSN 0740-3224
Publisher Optical Society of America
Peer Reviewed Peer Reviewed
Volume 30
Issue 11
Institution Citation Phang, S., Vukovic, A., Susanto, H., Benson, T. M., & Sewell, P. (2013). Ultrafast optical switching using parity-time symmetric Bragg gratings. Journal of the Optical Society of America B, 30(11), doi:10.1364/JOSAB.30.002984
DOI https://doi.org/10.1364/JOSAB.30.002984
Keywords Optical devices; Nonlinear optics
Publisher URL http://www.opticsinfobase.org/josab/abstract.cfm?uri=josab-30-11-2984
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 Journal of the Optical Society of America B 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...m?uri=josab-30-11-2984. 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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