Optical: systems and elements – Optical modulator – Having particular chemical composition or structure
Reexamination Certificate
2004-12-06
2008-08-12
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Optical modulator
Having particular chemical composition or structure
C359S315000, C359S254000, C359S245000
Reexamination Certificate
active
07411724
ABSTRACT:
A beam-steering element made of a more optically-active material, potassium tantalate niobate, with an improved diffraction efficiency, having a plurality of electrode layers and one electro-optic crystal layer interposed between every two adjacent electrode layers. Each electro-optic crystal layer and the electrode layer adjacent thereto have an aspect ratio of about 1:1. The electrode layers and the electro-optic crystal layers are interposed between two substrates. Preferably, the substrates are transparent to an incoming beam to be modulated by the electro-optic crystal layer.
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Cicchiello James M.
Gallagher David A.
Harkrider Curtis J.
Kreischer Kenneth E.
Northrop Grumman Corporation
Stetina Brunda Garred & Brucker
Sugarman Scott J.
Thomas Brandi N
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