Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2011-05-24
2011-05-24
Vanore, David A (Department: 2881)
Optical waveguides
With optical coupler
Input/output coupler
C385S016000, C385S017000, C385S024000, C385S027000, C372S020000, C359S015000
Reexamination Certificate
active
07949216
ABSTRACT:
Three-dimensional holographic elements are disclosed. Three-dimensional Bragg gratings recorded on bulks of optical material are included in the disclosure. Such elements may be manufactured by placing a three-dimensional bulk of optical material directly behind a recorded master hologram, directing a reference beam onto a master hologram such that a replica of the master hologram is recorded in the optical material. The replica may form the three-dimensional holographic element. The master hologram may be Bragg grating formed on a surface of a transparent substrate.
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Ban Vladimir Sinisa
Volodin Boris L.
PD-LD Inc.
Vanore David A
Woodcock & Washburn LLP
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