Beam design, generation and characterization techniques

Phase-space optics as a powerful tool for imaging and laser science

Our main research line comprises the generation of laser beams (either using holography or specific optical transformations) as well as their optical characterization. It implies the development of techniques and experimental setups in the field of phase space optics. For instance, the fractional Fourier transform is a well-known operation from which the reconstruction of the Wigner distribution (WD) of the beam can be obtained. Indeed, the WD provides a complete characterization of the beam.

We have developed advanced optical systems capable to perform important operations such as gyrator and the Fractional Fourier transformations. These systems are optimal because a minimum number of optical elements are required. Moreover they are programmable following user input interactively.

 

Selection of our representative works in this research line:

 

  Beam characterization using a programmable Radon-Wigner display 

 

 
 

A. Cámara, T. Alieva, J. A. Rodrigo, and M. L. Calvo, "Phase space tomography with a programmable Radon-Wigner display," Opt. Lett. 36, 2441-2443, (July 2011).

  • This article was selected to be published in the Virtual Journal of Biomedical Optics (link). 

 

 

 

 
  Phase retrieval techniques for beam characterization 
 
 

J. A. Rodrigo, H. Duadi, T. Alieva, and Z. Zalevsky, "Multi-stage phase retrieval algorithm based upon the gyrator transform," Opt. Express  18, 1510-1520 (2010). 

J. A. Rodrigo, T. Alieva, A. Cámara, Ó. Martínez-Matos, P. Cheben, and M. L. Calvo, "Characterization of holographically generated beams via phase retrieval based on Wigner distribution projections," Opt. Express 19, 6064-6077 (March 2011).

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» Media 1: MOV (3198 KB)      

 

 
  
  Design of rotating beams 
 
 

  T. Alieva, E. Abramochkin, A. Asenjo-Garcia, and E. Razueva, "Rotating beams in isotropic optical system," Opt. Express  18, 3568-3573 (2010).

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» Media 1: AVI (2654 KB)      

 

 
  
  

 

 

 

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