Patent · US Expired

Optically pumped semiconductor laser device

US7408972B2 · kind B2 · utility

5Cited by

2References

7Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Wolfgang Schmid · Regensburg, DE
Peter Brick · Regensburg, DE
Stephan Lutgen · Regensburg, DE
Tony Albrecht · Bad Abbach, DE
Franz Eberhard · Kilchberg, CH

Key dates

Filing date	Nov 9, 2004
Grant date	Aug 5, 2008
Priority date	—
Expiry date	Nov 9, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/4056
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An optically pumped semiconductor laser device having a surface-emitting vertical emission region (1) and at least one monolithically integrated pump radiation source (2) for optically pumping the vertical emission region (1). The semiconductor laser device is distinguished by the fact that the pump radiation enters the vertical emission region (1) in the form of partial bundles of rays of radiation with different radiation directions so that the pump radiation and the fundamental mode of the vertical emission region (1) have an overlap which is suitable for the excitation of this fundamental mode. This device is based on the fact that the fundamental mode of the vertical emission region (1) is preferably excited when the spatial intensity distribution of the pump radiation matches the profile of the fundamental mode.

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