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US 5,909,529 AGranted
Method of manufacturing planar gradient-index waveguide lenses
AssigneeCorning Incorporated
InventorVenkata Adiseshaiah Bhagavatula
Life of this patent
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Abstract
A core layer of a planar gradient-index waveguide lens is formed from a longitudinal section of a graded-index blank. The longitudinal section is mounted on a substrate that provides support for subsequent operations on the longitudinal section and that also functions as a cladding layer of the waveguide lens. The longitudinal section can be machined or redrawn in a furnace together with the substrate to a final thickness dimension.
Claims45
A method of making a planar gradient-index lens comprising:
- removing a longitudinal section from a graded-index blank at a first thickness;
- mounting the longitudinal section on a substrate so that the longitudinal section forms a core layer and the substrate forms a cladding layer of an optical waveguide;
- and
- reducing the thickness of the longitudinal section mounted on the substrate from the first thickness to a second thickness for controlling the mode of transmissions through the waveguide.
1 more element
A method of making a planar gradient-index lens comprising:
- removing a planar section from a blank having a graded-index profile;
- locating the planar section as a core layer of a waveguide adjacent to a layer of cladding;
- orienting the planar section within the waveguide so that a graded-index profile of the planar section extends transverse to a direction of light propagation through the waveguide;
- and
- adjusting a length of the waveguide in the direction of light propagation for controlling focusing qualities of the lens.
2 more elements
Dependencies are inferred from the claim text.