METHOD AND APPARATUS FOR SWITCHING AN OPTICAL BEAM USNG AN OPTICAL RIB WAVEGUIDEMETHOD AND APPARATUS FOR SWITCHING AN OPTICAL BEAM USING AN OPTICAL RIB WAVEGUIDE
First Claim
1. An apparatus, comprising:
- a first optical confinement layer disposed between first and second semiconductor substrate layers;
a second optical confinement layer disposed proximate to the first semiconductor substrate layer, the first semiconductor substrate layer disposed between the first and second optical confinement layers;
first and second lateral optical confinement regions disposed proximate to the first optical confinement layer;
a rib region included in the first semiconductor substrate layer disposed proximate to the first optical confinement layer and between the first and second lateral optical confinement regions; and
a slab region included in the first semiconductor substrate layer disposed proximate to the second optical confinement layer, the slab region disposed between the second optical confinement layer and the rib region and the first and second lateral optical confinement regions.
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Accused Products
Abstract
An optical switch including an optical rib waveguide. In one embodiment, the disclosed optical switch a first optical confinement layer disposed between first and second semiconductor substrate layers. A second optical confinement layer is disposed proximate to the first semiconductor substrate layer. The first semiconductor substrate layer is disposed between the first and second optical confinement layers. First and second lateral optical confinement regions are disposed proximate to the first optical confinement layer. A rib region is included in the first semiconductor substrate layer. The rib region is disposed proximate to the first optical confinement layer and between the first and second lateral optical confinement regions. A slab region is included in the first semiconductor substrate layer and is disposed proximate to the second optical confinement layer. The slab region is disposed between the second optical confinement layer and the rib region and the first and second lateral optical confinement regions.
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Citations
17 Claims
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1. An apparatus, comprising:
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a first optical confinement layer disposed between first and second semiconductor substrate layers;
a second optical confinement layer disposed proximate to the first semiconductor substrate layer, the first semiconductor substrate layer disposed between the first and second optical confinement layers;
first and second lateral optical confinement regions disposed proximate to the first optical confinement layer;
a rib region included in the first semiconductor substrate layer disposed proximate to the first optical confinement layer and between the first and second lateral optical confinement regions; and
a slab region included in the first semiconductor substrate layer disposed proximate to the second optical confinement layer, the slab region disposed between the second optical confinement layer and the rib region and the first and second lateral optical confinement regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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directing an optical beam through an optical rib waveguide disposed in a first semiconductor substrate layer;
confining the optical beam to remain in the optical rib waveguide with a first optical confinement layer disposed proximate to the first semiconductor substrate layer, the first optical confinement layer disposed between the first semiconductor substrate layer and a second semiconductor substrate layer;
confining the optical beam to remain in the optical rib waveguide with first and second first and second lateral optical confinement regions disposed proximate to the first optical confinement layer, a rib region of the optical rib waveguide disposed between the first and second lateral optical confinement regions; and
confining the optical beam to remain in the optical rib waveguide with a second optical confinement layer disposed proximate to the first semiconductor substrate layer, the first semiconductor substrate layer disposed between the first and second optical confinement layers, a slab region of the optical rib waveguide disposed between second optical confinement layer and the first and second lateral confinement regions and the rib region. - View Dependent Claims (10, 11, 12)
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13. An optical rib waveguide, comprising:
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a rib region included in a first semiconductor substrate layer, the rib region disposed proximate to a first optical confinement layer and disposed between first and second lateral optical confinement regions, the first optical confinement layer disposed between the first semiconductor substrate layer and a second semiconductor substrate layer; and
a slab region included in the first semiconductor substrate layer, the slab region disposed between a second optical confinement layer and the rib region and the first and second lateral optical confinement regions. - View Dependent Claims (14, 15, 16, 17)
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Specification