Integrated circuit device having optically coupled layers
First Claim
1. In an integrated circuit device comprising a vertical arrangement of integrated circuit layers, a method for coupling an optical signal between a first integrated circuit layer thereof and a second integrated circuit layer thereof, comprising:
- evanescently coupling the optical signal between a photonic crystal defect waveguide and a photonic crystal defect cavity in the first integrated circuit layer; and
projectably coupling the optical signal through a lensing element disposed between said photonic crystal defect cavity and an optical aperture on the second integrated circuit layer.
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Accused Products
Abstract
In an integrated circuit device comprising a vertical arrangement of integrated circuit layers, coupling of an optical signal between a first integrated circuit layer thereof and a second integrated circuit layer thereof is described. The optical signal is evanescently coupled between a photonic crystal defect waveguide and a photonic crystal defect cavity in the first integrated circuit layer and projectably coupled between the photonic crystal defect cavity and an optical aperture on the second integrated circuit layer.
28 Citations
22 Claims
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1. In an integrated circuit device comprising a vertical arrangement of integrated circuit layers, a method for coupling an optical signal between a first integrated circuit layer thereof and a second integrated circuit layer thereof, comprising:
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evanescently coupling the optical signal between a photonic crystal defect waveguide and a photonic crystal defect cavity in the first integrated circuit layer; and projectably coupling the optical signal through a lensing element disposed between said photonic crystal defect cavity and an optical aperture on the second integrated circuit layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An integrated circuit device, comprising:
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a first integrated circuit layer comprising an optical aperture; a second integrated circuit layer comprising a photonic crystal defect waveguide and a photonic crystal defect cavity; and an intervening layer positioned between the first intergrated circuit layer and the second intergrated circuit layer and having a lensing element positioned between the optical aperture and the photonic crystal defect cavity; wherein an optical signal propagating along said photonic crystal defect waveguide is evanescently coupled between said photonic crystal defect waveguide and said photonic crystal defect cavity and projectably coupled between said photonic crystal defect cavity and said optical aperture and said lensing element configured to image said photonic crystal defect cavity and said optical aperture onto each other. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus, comprising:
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a first integrated circuit layer comprising an optical aperture; a second integrated circuit layer comprising a photonic crystal defect waveguide and a photonic crystal defect cavity; means for evanescently coupling an optical signal propagating along said photonic crystal defect waveguide between said photonic crystal defect waveguide and said photonic crystal defect cavity; and means for projectably coupling the optical signal between said photonic crystal defect cavity and said optical aperture. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification