Beam ellipticity compensation by holographic optics

Miroslav Miler; Jan Pala; Ivo Aubrecht

doi:10.1117/12.558453

7 April 2004 Beam ellipticity compensation by holographic optics

Miroslav Miler, Jan Pala, Ivo Aubrecht

Proceedings Volume 5445, Microwave and Optical Technology 2003; (2004) https://doi.org/10.1117/12.558453
Event: Microwave and Optical Technology 2003, 2003, Ostrava, Czech Republic

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.

Citation Download Citation

Miroslav Miler, Jan Pala, and Ivo Aubrecht "Beam ellipticity compensation by holographic optics", Proc. SPIE 5445, Microwave and Optical Technology 2003, (7 April 2004); https://doi.org/10.1117/12.558453

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