8 July 2003 Modifications of holographic diffractive doublets for collimation of highly elliptical beams from edge-emitting diode lasers
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Proceedings Volume 5036, Photonics, Devices, and Systems II; (2003); doi: 10.1117/12.498465
Event: Photonics, Devices, and Systems II, 2002, Prague, Czech Republic
Abstract
Holographic diffractive doublets are optional systems for collimation of highly elliptical light beams, which are emitted from edge of diode-lasers. The first element converts an impinging astigmatic divergent beam into a cylindrical divergent beam, and the second element transforms the cylindrical beam into a collimated beam. In contrast to previous concept of the doublet with perpendicular input and output, another non-parallel scheme is considered, with the cylindrical wave front from the first element perpendicularly impinging upon the second element. A strongly off-axis holographic set-up is used for recording of diffractive elements in photoresists layers deposited on glass substrates.
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Jan Pala, Miroslav Miler, Ivo Aubrecht, "Modifications of holographic diffractive doublets for collimation of highly elliptical beams from edge-emitting diode lasers", Proc. SPIE 5036, Photonics, Devices, and Systems II, (8 July 2003); doi: 10.1117/12.498465; https://doi.org/10.1117/12.498465
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KEYWORDS
Holography

Collimation

Wavefronts

Diffraction

Monochromatic aberrations

Optical components

Glasses

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