Real-time Fourier transformer based on fiber gratings

• DOI: 10.1364/ol.24.000001
• Publication Date: 2008-05-07T18:34:37Z
• Authors: Miguel A. Muriel; José Azaña; Alejandro Carballar
• Keywords: 0103 physical sciences; 01 natural sciences

We use the well-known duality between paraxial diffraction in space and dispersion time to propose a time-domain analog spatial Fraunhofer diffraction. This permits design of real-time optical Fourier-transformer systems. These systems are shown be realizable by linearly chirped fiber gratings as dispersive media.