Design of multichannel phase spatial filter for selection of Gauss-Laguerre laser modes

Svetlana N. Khonina; A. A. Almazov

doi:10.1117/12.469021

31 May 2002 Design of multichannel phase spatial filter for selection of Gauss-Laguerre laser modes

Svetlana N. Khonina, A. A. Almazov

Proceedings Volume 4705, Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II; (2002) https://doi.org/10.1117/12.469021
Event: Saratov Fall Meeting 2001, 2001, Saratov, Russian Federation

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.

Citation Download Citation

Svetlana N. Khonina and A. A. Almazov "Design of multichannel phase spatial filter for selection of Gauss-Laguerre laser modes", Proc. SPIE 4705, Saratov Fall Meeting 2001: Coherent Optics of Ordered and Random Media II, (31 May 2002); https://doi.org/10.1117/12.469021

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