Two-dimensional wavelet transform by wavelength multiplexing
Javier Garcı́a, Zeev Zalevsky, David Mendlovic · Applied Optics · 1996
The wavelet transform is a useful tool for data compression, analysis of short transient pulses, optical correlators, etc. This transform was obtained optically by the use of the spatial or temporal multiplexing approaches. A two-dimensional wavelet transform is obtained with only one spatial channel. The information of the different scalings is carried in different wavelengths and summed incoherently at the output plane. Laboratory experimental results are demonstrated.