@inproceedings{9e2a4e5275624f97a92d2b1685f8a1a2,
title = "Design and Fabrication of Volume Holographic Optical Couplers for a Range of Non-Normal Incidence Angles",
abstract = "A theoretical model has previously been developed to calculate the holographic recording beam angles required in air (at any recording wavelength) to produce a Volume Holographic Optical Element (VHOE) for operation as a coupler for different input and output angles. In this paper, the experimental study is extended to further validate the VHOE coupler design and fabrication approach for additional incident beam angles, comparing -40° -45° and -50° (in air). The output angle for each VHOE is +45° within the medium and the coupler operational wavelength is 633nm. Holographic recording in Bayfol HX 200 photopolymer at 532nm is used to fabricate the VHOE couplers. The experimental Bragg curves for each VHOE coupler obtained at 633 nm demonstrate agreement of the measured angles to within ±1.5° (in air) with the expected values.",
keywords = "Bayfol, HOE, VHOE, diffraction, holographic coupler, holography, non-normal incidence, spurious gratings, volume holography, waveguide",
author = "Dipanjan Chakraborty and Rosen Georgiev and Sinead Aspell and Vincent Toal and Izabela Naydenova and Dervil Cody and Suzanne Martin",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; Holography: Advances and Modern Trends VIII 2023 ; Conference date: 24-04-2023 Through 25-04-2023",
year = "2023",
doi = "10.1117/12.2665596",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Antonio Fimia and Miroslav Hrabovsky",
booktitle = "Holography",
address = "United States",
}