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Proceedings Paper

Holographic collimator for laser diodes
Author(s): Richard Hauck; Horst Schröder
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Paper Abstract

Laser diodes emit a highly divergent beam with elliptical intensity profile and astigmatic wavefront. Conventional high quality collimators use up to seven elements to produce a plane wavefront free from astigmatism and with circular intensity profile. The same task can be accomplished by a system of only two holographic optical elements (HOE). Because of the strong dispersion of diffractive elements, it is necessary to achromatize the system. The design is based on Weingartner's iteration. The design algorithm and optical properties of the system are discussed.

Paper Details

Date Published: 15 April 1993
PDF: 8 pages
Proc. SPIE 1780, Lens and Optical Systems Design, 17800P (15 April 1993); doi: 10.1117/12.142819
Show Author Affiliations
Richard Hauck, Krupp Forschungsinstitut GmbH (Germany)
Horst Schröder, Krupp Forschungsinstitut GmbH (Germany)

Published in SPIE Proceedings Vol. 1780:
Lens and Optical Systems Design
Hannfried Zuegge, Editor(s)

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