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Proceedings Paper

Design of multichannel phase spatial filter for selection of Gauss-Laguerre laser modes
Author(s): Svetlana N. Khonina; A. A. Almazov
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Paper Abstract

We synthesize a multi-channel phase filter to decompose the light fields into the basis of generalized Gauss-Laguerre modes, (Psi) nm(r,(phi) ),0<EQn,m<EQN. The filter allows any of nine specified modes to be selected. The contribution of any mode to the image under analysis can be determined from the correlation peak in the focal plane of the corresponding diffraction order. The choice of an optimal radius of the plane and Gaussian illuminating beams is studied. The results on computer simulated selection of desired modes from the laser beams composed of a linear combination of Gauss-Laguerre modes are discussed.

Paper Details

Date Published: 31 May 2002
PDF: 10 pages
Proc. SPIE 4705, Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II, (31 May 2002); doi: 10.1117/12.469021
Show Author Affiliations
Svetlana N. Khonina, Image Processing Systems Institute (Russia)
A. A. Almazov, Samara State Aerospace Univ. (Russia)


Published in SPIE Proceedings Vol. 4705:
Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II

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