Important for any commercialization are simple and robust mass production schemes. In this paper, we present an efficient and easy to control one-beam recording scheme to copy a so-called master vHOE in a step-and-repeat process. In this contact-copy scheme, Bayfol® HX film is laminated to a master stack before being exposed by a scanning laser line. Subsequently, the film is delaminated in a controlled fashion and bleached. We explain working principles of the one-beam copy concept, discuss the opto-mechanical construction and outline the downstream process of the installed vHOE replication line. Moreover, we focus on aspects like performance optimization of the copy vHOE, the bleaching process and the suitable choice of protective cover film in the re-lamination step, preparing the integration of the vHOE into the final device.
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Friedrich-Karl Bruder, Thomas Fäcke, Fabian Grote, Rainer Hagen, Dennis Hönel, Eberhard Koch, Christian Rewitz, Günther Walze, Brita Wewer, "Performance optimization in mass production of volume holographic optical elements (vHOEs) using Bayfol HX photopolymer film," Proc. SPIE 10233, Holography: Advances and Modern Trends V, 102330G (15 May 2017);