Modifications of holographic diffractive doublets for collimation of highly elliptical beams from edge-emitting diode-lasers

0304123 - URE-Y 20030013 RIV US eng C - Conference Paper (international conference)
Pala, Jan - Miler, Miroslav - Aubrecht, Ivo
Modifications of holographic diffractive doublets for collimation of highly elliptical beams from edge-emitting diode-lasers.
Bellingham: SPIE The International Society for Optical Engineering, 2003. Proceedings of SPIE, 5036. ISBN 0-8194-4837-0. ISSN 0277-786X. In: Photonics, Devices and Systems II. - (Hrabovský, M.; Senderáková, D.; Tománek, P.), s. 471-476
[Photonics Prague'2002 /4./. Prague (CZ), 26.05.2002-29.05.2002 (K)]
R&D Projects: GA ČR GA102/01/0429
Institutional research plan: CEZ:AV0Z2067918
Keywords : optical collimators * holographic optical elements * semiconductor lasers
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

The first holographic diffractive doublets 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. A strongly off-axis holographic set-up is used for recording of diffractive elements in photoresist layers deposited on glass substrates.
Permanent Link: http://hdl.handle.net/11104/0114264