Axial diffraction patterns in the vicinity of the focus of the off-axis holographic diffractive collimator

Milan Hradil; Miroslav Miler; Jan Pala

doi:10.1117/12.739387

12 April 2007 Axial diffraction patterns in the vicinity of the focus of the off-axis holographic diffractive collimator

Milan Hradil, Miroslav Miler, Jan Pala

Author Affiliations +

Proceedings Volume 6609, 15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics; 66090D (2007) https://doi.org/10.1117/12.739387
Event: 15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics, 2006, Liberec, Czech Republic

Abstract

Off-axis holographic optical elements can be used for collimation of optical beams from edge emitting diode lasers. Such a single element collimator can simultaneously compensate large elliptic cross-section and considerable astigmatism of that beams and also reduce two selected lower aberrations. Beside a current transverse diffraction pattern in the focus also patterns in the vicinity of the focus should take attention. Diffraction patterns due to an elliptic aperture of such a collimator are very complicated and for their theoretical description sophisticated methods must be used. This contribution involves some preliminary results of the study. Theoretical transverse diffraction patterns in the vicinity of the focus have been mainly presented and their description analyzed.

Citation Download Citation

Milan Hradil, Miroslav Miler, and Jan Pala "Axial diffraction patterns in the vicinity of the focus of the off-axis holographic diffractive collimator", Proc. SPIE 6609, 15th Czech-Polish-Slovak Conference on Wave and Quantum Aspects of Contemporary Optics, 66090D (12 April 2007); https://doi.org/10.1117/12.739387

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