Communications - Scientific Letters of the University of Zilina 2012, 14(2):5-10 | DOI: 10.26552/com.C.2012.2.5-10

Study of the Chalcogenide Nonlinear Fiber Bragg Gratings for All-Optical Switching

Eliska Jurisova1, Jarmila Mullerova1
1 Department of Engineering Fundamentals, Faculty of Electrical Engineering, University of Zilina, Slovakia

In this paper uniform and apodized nonlinear chalcogenide glass fiber Bragg gratings (FBG) as novel and promising devices for all-optical switching are investigated. The transmission response of these devices is discussed theoretically. The continuous wave in the investigated FBGs induces the nonlinear variation of the refractive index that causes changes in the FBG transmission characteristics. This effect can be modified depending on incident light power what is assumed to be due to the optical Kerr effect responsible for optical switching. The incident intensity thresholds of the bistable regimes were analyzed numerically to deduce possible switching properties of FBGs based on various chalcogenide glass samples. The influence of grating parameters on the optical bistability behaviour is researched. The nonlinear coupled mode theory was used for numerical investigation.

Keywords: chalcogenide glass, fiber Bragg grating, optical bistability, optical switching

Published: June 30, 2012  Show citation

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Jurisova, E., & Mullerova, J. (2012). Study of the Chalcogenide Nonlinear Fiber Bragg Gratings for All-Optical Switching. Communications - Scientific Letters of the University of Zilina, 14(2), 5-10. doi: 10.26552/com.C.2012.2.5-10
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