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US 5,742,631 AGranted
Independently-addressable monolithic laser arrays
AssigneeXerox Corporation
InventorThomas L. Paoli
Life of this patent
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Abstract
This invention relates to a laser array which can produce monolithic, closely-spaced, independently-addressable lasing elements. More specifically, this invention simplifies the formation of solid state laser arrays through the use of as-grown buried lateral waveguiding structures.
Claims23
An independently-addressable semiconductor laser array, comprising:
- a substrate having a surface structure;
- a plurality of semiconductor layers forming a first lasing element in a first optical cavity and a second lasing element in a second optical cavity, wherein said first and second optical cavities are spatially separated;
- an as-grown lateral waveguiding region for said first lasing element formed by said structure, providing confinement of the optical field in said first lasing element in the lateral direction;
- an isolation region formed between said first and second lasing elements to electrically isolate said first and second lasing elements;
- and
- an electrode connected to each of said first and second lasing elements causing each of said lasing elements to independently emit radiation.
3 more elements
Dependencies are inferred from the claim text.