Patent
Reconfigurable substrate-mode holographic interconnect apparatus and method
TLDR
In this article, a reconfigurable optical interconnect is proposed that redirects an optical beam through embedded holographic elements of a substrate-mode hologram to connecting information processors or to photonic switching devices.Abstract:
The present invention discloses a reconfigurable optical interconnect apptus that redirects an optical beam through embedded holographic elements of a substrate-mode hologram to connecting information processors or to photonic switching devices. The apparatus includes a substrate-mode hologram, including a polarization insensitive input hologram member, one or more embedded polarization sensitive hologram members that couple transmitted diffracted or non-diffracted light to respective optical receivers. The optical receivers further couple the light out of the substrate-mode hologram or to cascaded similar apparatus. The method includes processing an incident beam of polarized light through a controlled polarization modulator, through an optical information encoder, such as a spatial light modulator, then further processing the polarized light through the substrate-mode hologram. The apparatus has advantages of being compact and expandable into larger systems.read more
Citations
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References
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Patent
Optical filters and multiplexing-demultiplexing devices using the same
TL;DR: In this paper, a wavelength selective holographic reflection filter is proposed for optical multiplexing/demultiplexing, where light from a fibre optic input cable is directed by mirrors to make successive passes at the filter at respective different positions there along and detectors receive the respectively reflected wavelengths.
Patent
Beam splitter having a partial semitransparent layer assigned to a plurality of outgoing light beams
Takeo Matsudaira,Teiji Inoue +1 more
TL;DR: In this paper, a beam splitter for splitting a single input light beam into a plurality of outgoing light beams, a transparent block has first and second planar surfaces substantially parallel to each other.
Patent
Holographic optical polarizers and beam splitters
TL;DR: In this paper, the interference of a pair of coherent light beams polarized at 90* to their plane of incidence on a transparent thick holographic medium, and intersecting each other at 90 * within the medium, is described.
Patent
Holographic coupler for optical waveguides
TL;DR: In this article, the authors proposed a coupling device for an optical waveguide using a hologram recorded in a photoresist layer arranged on a face of the waveguide, and capable of coupling a wave having a predetermined wave front and travelling outside the wave guide and a plane wave travelling inside the guide.