All optical self signal processing using chalcogenide nonlinear fiber Bragg grating |
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Authors: | Elham Yousefi Mohsen Hatami |
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Institution: | 1. Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran;2. Physics Department, School of Science, Shiraz University of Technology, Shiraz, Iran |
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Abstract: | In this study, we simulate numerically quasi pulse propagation in a uniform nonlinear fiber Bragg grating (FBG) made of chalcogenide glasses. Because of bistability and nonlinearity behavior of FBG, the shapes of output pulse vary abruptly and strongly according to the input peak intensity. We take Gaussian pulse as input and produce saw-tooth wave and square wave in the output by suitable input amplitude and FBG length also we could reach pulse chopping and pulse compression. These all optical signal processing achieved for a few length, i.e. 6.6 mm and few intensity, i.e. 35 W/m2 because of high nonlinearity of chalcogenide glasses. |
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Keywords: | Optical bistability Nonlinear optics Fiber Bragg grating Optical signal processing |
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