9 May 2018 PT-symmetric chirped Bragg structures
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The propagation of light pulses through the chirped Bragg structures with superimposed PT-symmetric complex potential (gain and loss) has been studied using the numerical methods. The reflective properties of such structures in the regime below PT-symmetry breaking threshold are discussed. It is shown, that due to the balanced amplification of different spectral components of a reflected pulse such structures can effectively transform the profile of a reflected pulse and at the same time amplify its amplitude.
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Anatoliy V. Kozar, Anatoliy V. Kozar, Vladimir F. Marchenko, Vladimir F. Marchenko, Pavel Yu. Shestakov, Pavel Yu. Shestakov, } "PT-symmetric chirped Bragg structures", Proc. SPIE 10681, Micro-Structured and Specialty Optical Fibres V, 106810L (9 May 2018); doi: 10.1117/12.2311862; https://doi.org/10.1117/12.2311862

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