title: Holographic parabolic mirror as a receiver optical front end for wireless infrared communications: experimental study.
abstract: The inherent multifunctionality of holographic optical elements and their light physical weight make them an attractive solution for the receiver optics of portable terminals in indoor infrared wireless communication systems. A parabolic holographic mirror has been recorded in silver halide at a visible wavelength, and its replay wavelength has been shifted to the near infrared. Employment of proprietary swelling technology resulted in a permanent replay wavelength shift without the need for hologram sealing. Despite the relatively low diffraction efficiency of holograms recorded in silver halide in principle, an improvement in the receiver signal-to-noise ratio of more than 20 dB has been measured. The results of the conducted experiments proved undoubtedly the great potential of curved holographic mirrors as a key element of the receiver optical front end in IR wireless communication systems.
authors.affiliation: Center for Information and Communications Technology Research, Department of Electrical Engineering, Pennsylvania State University, University Park, 16802, USA. stj2@psu.edu
authors.forename: Svetla T
authors.initials: ST
authors.lastname: Jivkova
authors.forename: Stanislav
authors.initials: S
authors.lastname: Shurulinkov
authors.forename: Mohsen
authors.initials: M
authors.lastname: Kavehrad