Patent
1989-10-16
1990-08-07
LaRoche, Eugene R.
350 37, 350 372, 350 9619, G02B 2710
Patent
active
049462539
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.
REFERENCES:
patent: 3622220 (1971-11-01), Kogelnick
patent: 3885856 (1975-05-01), Ostrowsky et al.
patent: 4671603 (1987-06-01), McQuaid et al.
patent: 4765715 (1988-08-01), Matsudaira et al.
Arizona Board of Regents For and On Behalf of the University of
Flores Victor
LaRoche Eugene R.
Ryan Jay
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