Mode control in vertical-cavity surface-emitting lasers
AssigneeThe Board of Trustees of the University of Illinois
InventorsJohn Michael Dallesasse, Benjamin Kesler, Thomas O'Brien, Jr.
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Abstract
Aspects of the subject disclosure may include, for example, a first distributed Bragg reflector, a second distributed Bragg reflector, an active region with an oxide aperture between the first and second distributed Bragg reflectors, and a dielectric layer, where a positioning of the dielectric layer with respect to the first and second distributed Bragg reflectors and the oxide aperture causes suppression of higher modes of the vertical-cavity surface-emitting laser device. Other embodiments are disclosed.
Claims20
A vertical-cavity surface-emitting laser device, comprising:
- a first distributed Bragg reflector;
- a second distributed Bragg reflector;
- an active region with an oxide aperture between the first and second distributed Bragg reflectors;
- and
- one or more dielectric layers positioned above the second distributed Bragg reflector, wherein a positioning of the one or more dielectric layers with respect to the first and second distributed Bragg reflectors and the oxide aperture causes suppression of first or higher modes of the vertical-cavity surface-emitting laser device.
A method of forming a vertical-cavity surface-emitting laser device, the method comprising:
- forming a first distributed Bragg reflector on a substrate, the first distributed Bragg reflector being an n-type distributed Bragg reflector;
- forming an active region on the first distributed Bragg reflector, the active region having an oxide aperture;
- forming a second distributed Bragg reflector on the active region, the second distributed Bragg reflector being a p-type distributed Bragg reflector;
- and
- forming one or more dielectric layers on the second distributed Bragg reflector, and
- wherein a positioning of the one or more dielectric layers with respect to the first and second distributed Bragg reflectors and the oxide aperture causes suppression of first or higher modes of the vertical-cavity surface-emitting laser device.
A surface-emitting laser device, comprising:
- a first distributed Bragg reflector;
- a second distributed Bragg reflector;
- an active region disposed between the first and second distributed Bragg reflectors and comprising an oxide aperture;
- and
- one or more dielectric layers positioned above the second distributed Bragg reflector, and
- wherein a positioning of the one or more dielectric layers with respect to the first and second distributed Bragg reflectors and the oxide aperture causes suppression of at least a first mode of the surface-emitting laser device.
Dependencies are inferred from the claim text.