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US 6,661,825 B2Granted
Integrated grating-outcoupled surface-emitting lasers
AssigneePhotodigm, Inc.
InventorsGary A. Evans, Jay B. Kirk, John Mattis
Life of this patent
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Abstract
An electronic/photonic integrated circuit in which grating-outcoupled surface-emitting lasers are used both to provide external emission out of the plane of the chip (through gratings), and also to feed optical power into photonic waveguides parallel to the plane of the chip. Transistors are fabricated in a common multilayer semiconductor body with the lasers.
Claims14
An electronic/photonic integrated circuit, comprising:
- a plurality of lasers having lateral cavities;
- at least one grating positioned to outcouple light from at least one said laser;
- at least one lateral waveguide which is optically coupled to be driven by at least one said laser;
- and
- electronic circuitry including at least one transistor which is formed from a body of material which is common to at least one said laser.
2 more elements
An electronic/photonic integrated circuit, comprising:
- a laser comprising
- at least one semiconductor gain volume,
- distributed reflector gratings defining a laser cavity beam pat through said gain volume, and
- an outcoupling grating which deflects a portion of the energy in said beam path out of the plane of said reflector gratings;
- and
- transistors which are electrically coupled to said laser;
- wherein said transistors and said said volume are formed in a single multilayer structure of semiconductor material.
4 more elements
An electronic/photonic integrated circuit, comprising:
- at least one GSE laser;
- and
- at least 10,000 transistors, formed in a semiconductor structure which is at least partly shared wit said laser.
Dependencies are inferred from the claim text.