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Proceedings Paper

Beam ellipticity compensation by holographic optics
Author(s): Miroslav Miler; Jan Pala; Ivo Aubrecht
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Paper Abstract

Ellipticity of optical beams can be compensated by means of diffraction gratings. Holographic gratings are a simple alternative, which is noted for the possibility of recording gratings with curved and non-equidistant grooves. Using spherical wave fronts off-axis diffractive imaging elements can be recorded. They can be used for a beam transformation. The usual transformation task is to collimate beams emitted by edge-emitting diode lasers. Holographic recording and reconstruction, taking into account aberrations of the third order and assuming a recording layer to be on a spherical substrate, are described. Experiments verifying theoretical presumptions were carried out. Fraunhofer diffraction pattern with a very narrow central maximum was obtained.

Paper Details

Date Published: 7 April 2004
PDF: 4 pages
Proc. SPIE 5445, Microwave and Optical Technology 2003, (7 April 2004); doi: 10.1117/12.558453
Show Author Affiliations
Miroslav Miler, Institute of Radio Engineering and Electronics (Czech Republic)
Jan Pala, Institute of Radio Engineering and Electronics (Czech Republic)
Ivo Aubrecht, Institute of Radio Engineering and Electronics (Czech Republic)

Published in SPIE Proceedings Vol. 5445:
Microwave and Optical Technology 2003
Jaromir Pistora; Kamil Postava; Miroslav Hrabovsky; Banmali S. Rawat, Editor(s)

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