Ultrafast optical switching using parity-time symmetric Bragg gratings

Phang, Sendy and Vukovic, Ana and Susanto, Hadi and Benson, Trevor M. and Sewell, Phillip (2013) Ultrafast optical switching using parity-time symmetric Bragg gratings. Journal of the Optical Society of America B, 30 (11). pp. 2984-2991. ISSN 0740-3224

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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.

Item Type: Article
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.opticsinfobase.org/josab/abstract.cfm?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.
Keywords: Optical devices; Nonlinear optics
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Electrical and Electronic Engineering
Identification Number: https://doi.org/10.1364/JOSAB.30.002984
Depositing User: Phang, Sendy
Date Deposited: 18 May 2015 13:50
Last Modified: 14 Sep 2016 08:24
URI: http://eprints.nottingham.ac.uk/id/eprint/28713

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