Proceedings PaperOpto-Optical Switch With A Spatially Modulated Gain Medium
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The diffraction of light by periodic structure results in light deflection and modulation and is the basis of many optical devices.1 Periodic structures due to periodic refraction index variation produced by optical beam interference are of particular interest. In the case of a gain modulated grating the diffraction beam intensity may exceed the incident beam intensity. In the present work Bragg scattering off a spatially modulated gain grating, which is the basis of a distributed feedback dye laser (DFDL) operationh, is used to construct a light controlled optical switch.