Walsh-Hadamard analysis applied to the study of light propagation in a tapered gradient-index medium.
The analysis of light propagation in a tapered gradient-index (GRIN) medium when the input signal is a binary function is considered with the Walsh-Hadamard analysis. The study of the evolution of the sequency spectrum through the GRIN medium by the Walsh-Hadamard transform confirms the self-imaging effect.
Optics Laboratory, Department of Applied Physics, Faculty of Physics and Optics and Optometry School, University of Santiago de Compostela, Campus Sur, E15782 Santiago de Compostela, Galicia, Spain.
Osvaldo
O
Trabocchi
Carlos
C
Gómez-Reino