Patent · US Active

Vertical-cavity surface-emitting laser

US9979158B1 · kind B1 · utility

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1References

18Claims

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Assignee

TECHNISCHE UNIVERSITÄT BERLIN · DE

Inventors

Dieter Bimberg · Aachen, DE
Gunter Larisch · Neuenhagen, DE
James A. Lott · Maryville, US

Key dates

Filing date	Jan 12, 2017
Grant date	May 22, 2018
Priority date	—
Expiry date	Jan 12, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01S2304/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A vertical cavity surface emitting laser comprising a first reflector, a second reflector comprising a layer stack of semiconductor or isolating layers, an active region arranged between the first and second reflectors, and an additional layer on top of the layer stack at the light output side, said additional layer forming an output interface of the laser, wherein the refractive index of the additional layer is smaller, equal to or larger than the smallest refractive index of the refractive indices of said layer stack.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.